Revision 877
Delete src directory.
trunk/code/lib/src/libdragonfly/math.c | ||
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/** |
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* Copyright (c) 2007 Colony Project |
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* |
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* Permission is hereby granted, free of charge, to any person |
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* obtaining a copy of this software and associated documentation |
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* files (the "Software"), to deal in the Software without |
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* restriction, including without limitation the rights to use, |
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* copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following |
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* conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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**/ |
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/** |
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* @file math.c |
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* @brief Math Functions |
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* |
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* Useful math functions. |
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* |
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* @author Colony Project, CMU Robotics Club |
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**/ |
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#include "math.h" |
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/** |
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* @defgroup math Math |
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* Function(s) for performing math operations |
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* |
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* @{ |
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**/ |
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/** |
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* finds the absolute value of x |
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* |
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* @param x the int of which we want to take its absolute value |
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* |
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* @return the absolute value of x |
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**/ |
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int abs_int (int x) { |
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if(x < 0) |
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return -x; |
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return x; |
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} |
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/**@}**/ //end defgroup |
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trunk/code/lib/src/libdragonfly/lights.c | ||
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/** |
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* Copyright (c) 2007 Colony Project |
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* |
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* Permission is hereby granted, free of charge, to any person |
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* obtaining a copy of this software and associated documentation |
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* files (the "Software"), to deal in the Software without |
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* restriction, including without limitation the rights to use, |
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* copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following |
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* conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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**/ |
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/** |
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* @file ligths.c |
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* @brief Orbs |
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* |
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* Implemenation for the orbs (tri-colored LEDs) |
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* |
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* @author Colony Project, CMU Robotics Club |
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* @bug Colors are incorrect, seems to not work with wireless library |
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**/ |
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/* |
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lights.c |
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Controls orb1 and orb2. Also contains the framework for a software PWM that may be used for servos in the future. |
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author: CMU Robotics Club, Colony Project |
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Change Log: |
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2.4.07 - Aaron |
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Revamped orb code so it works. Need to check interaction with rtc, and tweak some colors. |
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2.1.07 - James |
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Modified sort_buffer() to prune for repeats. PWM now uses orb_buf_size for the number of orb values in orb_time_arr[]. |
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Changed sorting algorithm used in sort_buffer() to selection sort (faster). And it works now. |
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1.25.07 - KWoo |
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Deleted old FF+ code to make it cleaner. Commented code. This all works. Note however that if you ever plan to use the |
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software PWM (which is this) you will need to change the implementation of orb_enable() and orb_disable() to not |
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shutdown the PWM. |
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*/ |
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#include "lights.h" |
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#include "dragonfly_lib.h" |
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#include <avr/interrupt.h> |
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#define ORB_RESET 1025 |
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#define ORBPORT PORTC |
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#define ORBDDR DDRC |
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#define ORBMASK 0x77 |
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/***** Port and Pin Definitions ****/ |
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//Orb Ports and Registers |
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#define ORB_PORT PORTC |
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#define ORB_DDR DDRC |
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//Orb Pins |
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#define ORB1_RED 0x00 |
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#define ORB1_GREEN 0x01 |
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#define ORB1_BLUE 0x02 |
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#define ORB2_RED 0x04 |
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#define ORB2_GREEN 0x05 |
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#define ORB2_BLUE 0x06 |
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#define ORB_COUNT 8 //please dont change this, or bad things might happen |
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// an orb node |
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struct ORB_NODE { |
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uint8_t num; |
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uint16_t angle; |
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}; |
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//the change in an orb |
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struct ORB_CHANGE { |
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uint16_t port_val; |
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uint16_t split_time_period; |
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}; |
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// the status of an orb |
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struct ORB_STATUS_STRUCT { |
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struct ORB_NODE orbs[ORB_COUNT]; |
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uint16_t orb_angles[ORB_COUNT]; |
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struct ORB_CHANGE changes[ORB_COUNT+1]; |
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uint8_t change_count; |
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uint8_t new_angles; |
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uint8_t current_orb; |
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} ORB_STATUS; |
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void orb_sort(void); |
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void orb_setup_pulse(void); |
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SIGNAL (SIG_OUTPUT_COMPARE3C){ |
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//pull the correct ones down |
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ORBPORT &= (~ORBMASK)|(ORB_STATUS.changes[ORB_STATUS.current_orb].port_val); |
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++ORB_STATUS.current_orb; //now look at next orb transition |
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if (ORB_STATUS.current_orb < ORB_STATUS.change_count) { //if it isnt the end... |
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//setup timer for next pull down |
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OCR3C = TCNT3+ORB_STATUS.changes[ORB_STATUS.current_orb].split_time_period; |
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} |
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else { //we are done with these pulses |
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orb_setup_pulse(); |
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} |
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} |
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//sets a channel to a value |
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void orb_set_angle(int orb, int angle) { |
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uint8_t mysreg; |
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orb=orb&0x07; //only have 8 |
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angle=angle&0xff; //only accept 0-255 |
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angle=255-angle; //inverse intensity |
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angle=angle<<2; //scale up so that we dont run it too often |
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angle+=3; //0 values dont really work |
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if (ORB_STATUS.orb_angles[orb] != angle) { //if the angle has changed |
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mysreg=SREG; |
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cli(); //disable interrupts |
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ORB_STATUS.orb_angles[orb] = angle; //update angle |
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ORB_STATUS.new_angles = 1; |
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SREG=mysreg; //put interrupt status back |
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} |
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} |
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void orb_sort(void) { |
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int done = 0, i; |
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while (! done) { |
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done = 1; |
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for (i = 0; i < ORB_COUNT - 1; ++i) { //loop through all |
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//if they are out of order, swap them |
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if (ORB_STATUS.orbs[i].angle > ORB_STATUS.orbs[i+1].angle) { |
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ORB_STATUS.orbs[i].angle ^= ORB_STATUS.orbs[i+1].angle; |
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ORB_STATUS.orbs[i+1].angle ^= ORB_STATUS.orbs[i].angle; |
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ORB_STATUS.orbs[i].angle ^= ORB_STATUS.orbs[i+1].angle; |
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ORB_STATUS.orbs[i].num ^= ORB_STATUS.orbs[i+1].num; |
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ORB_STATUS.orbs[i+1].num ^= ORB_STATUS.orbs[i].num; |
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ORB_STATUS.orbs[i].num ^= ORB_STATUS.orbs[i+1].num; |
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done = 0; |
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} |
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} |
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} |
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} |
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//calculate the split times |
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void orb_setup_pulse(void) { |
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int i; |
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uint16_t my_port; |
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uint16_t sum = 0; |
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uint16_t split_time; |
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my_port = 0xff; //all on |
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if (ORB_STATUS.new_angles) { |
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ORB_STATUS.change_count = 0; |
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for (i = 0; i < ORB_COUNT; ++i) { //get the new values |
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ORB_STATUS.orbs[i].angle = ORB_STATUS.orb_angles[ORB_STATUS.orbs[i].num]; |
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} |
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orb_sort(); //sort them |
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ORB_STATUS.new_angles = 0; |
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for (i = 0; i < ORB_COUNT; ++i) { //calculate split times |
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split_time = ORB_STATUS.orbs[i].angle - sum; |
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my_port &= ~_BV(ORB_STATUS.orbs[i].num); |
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for (; i < ORB_COUNT - 1 && ORB_STATUS.orbs[i].angle == ORB_STATUS.orbs[i+1].angle; ++i) { |
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my_port &= ~_BV(ORB_STATUS.orbs[i+1].num); //look for doups |
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} |
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ORB_STATUS.changes[ORB_STATUS.change_count].port_val = my_port; //which pins are low |
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ORB_STATUS.changes[ORB_STATUS.change_count].split_time_period = split_time; |
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++ORB_STATUS.change_count; |
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sum += split_time; |
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} |
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ORB_STATUS.changes[ORB_STATUS.change_count].port_val = my_port; |
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ORB_STATUS.changes[ORB_STATUS.change_count].split_time_period = ORB_RESET - sum; //get a constant period |
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++ORB_STATUS.change_count; |
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} |
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ORB_STATUS.current_orb = 0; |
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ORBPORT |= ORBMASK; //start with all high |
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OCR3C = TCNT3 + ORB_STATUS.changes[0].split_time_period; //wait for first split |
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} |
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/** |
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* @defgroup orbs Orbs |
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* @brief Functions for controlling the color of the orbs. |
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* |
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* Functions for controlling the color and lighting of the orbs. |
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* |
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* @{ |
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**/ |
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/** |
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* Initializes the PWM for Orb control. This must be called before |
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* the orbs are used for them to function. |
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**/ |
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void orb_init() |
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{ |
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int i; |
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uint8_t mysreg; |
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ORBDDR |= ORBMASK; //all outputs |
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mysreg=SREG; |
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cli(); //turn off interrupts for now |
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//init everything |
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for (i = 0; i < ORB_COUNT; ++i) { |
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ORB_STATUS.orbs[i].num = i; |
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ORB_STATUS.orbs[i].angle = 1023; //127 is a pretty stupid start angle, but oh well |
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ORB_STATUS.orb_angles[i] = 1023; |
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} |
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ORB_STATUS.new_angles = 1; |
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ORB_STATUS.change_count = 0; |
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//init timer3 |
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TCCR3A = 0; |
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TCCR3B = _BV(CS31); //prescale = 8 |
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TCCR3C = 0; |
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ETIMSK |= _BV(OCIE3C); //turn on oc3c interrupt |
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OCR3C = TCNT3+ORB_RESET; |
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SREG=mysreg; |
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} |
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/** |
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* Set both orbs to the color specified. orb_init must |
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* be called before this function may be used. |
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* |
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* @param red_led the red component of the color |
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* @param green_led the green component of the color |
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* @param blue_led the blue component of the color |
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* |
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* @see orb_init |
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**/ |
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void orb_set(unsigned char red_led, unsigned char green_led, unsigned char blue_led) { |
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orb1_set(red_led,green_led,blue_led); |
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orb2_set(red_led,green_led,blue_led); |
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} |
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/** |
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* Set orb1 to the color specified. orb_init must |
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* be called before this function may be used. |
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* |
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* @param red_led the red component of the color |
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* @param green_led the green component of the color |
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* @param blue_led the blue component of the color |
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* |
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* @see orb_init |
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**/ |
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void orb1_set(unsigned char red_led, unsigned char green_led, unsigned char blue_led) { |
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orb_set_angle(0,red_led); |
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orb_set_angle(1,green_led); |
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orb_set_angle(2,blue_led); |
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} |
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/** |
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* Set orb2 to the color specified. orb_init must |
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* be called before this function may be used. |
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* |
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* @param red_led the red component of the color |
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* @param green_led the green component of the color |
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* @param blue_led the blue component of the color |
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* |
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* @see orb_init |
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**/ |
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void orb2_set(unsigned char red_led, unsigned char green_led, unsigned char blue_led) { |
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orb_set_angle(4,red_led); |
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orb_set_angle(5,green_led); |
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orb_set_angle(6,blue_led); |
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} |
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|
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/** |
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* Set both orbs to the specified color. This function |
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* is intended to be used with the predefined |
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* colors. orb_init must be called before this |
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* function may be used. |
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* |
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* @param col the color to set the orbs to |
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* |
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* @see orb_init |
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**/ |
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void orb_set_color(int col) |
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{ |
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int red, green, blue; |
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red = ((col & 0xE0) >> 5) * 36; |
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green = ((col & 0x1C) >> 2) * 36; |
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blue = (col & 0x03) * 85; |
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orb_set(red, green, blue); |
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} |
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|
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/** |
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* Set orb1 to the specified color. This function |
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* is intended to be used with the predefined |
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* colors. orb_init must be called before this |
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* function may be used. |
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* |
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* @param col the color to set the orbs to |
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* |
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* @see orb_init |
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**/ |
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void orb1_set_color(int col) |
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{ |
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int red, green, blue; |
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red = ((col & 0xE0) >> 5) * 36; |
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green = ((col & 0x1C) >> 2) * 36; |
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blue = (col & 0x03) * 85; |
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orb1_set(red, green, blue); |
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} |
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/** |
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* Set orb2 to the specified color. This function |
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* is intended to be used with the predefined |
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* colors. orb_init must be called before this |
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* function may be used. |
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* |
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* @param col the color to set the orbs to |
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* |
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* @see orb_init |
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**/ |
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void orb2_set_color(int col) |
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{ |
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int red, green, blue; |
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red = ((col & 0xE0) >> 5) * 36; |
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green = ((col & 0x1C) >> 2) * 36; |
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blue = (col & 0x03) * 85; |
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orb2_set(red, green, blue); |
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} |
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//DOES THIS WORK? |
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// Disables the timer1 interrupt, disabling the Orb's color fading capabilities |
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// You can still turn the red, green, and blue leds on and off with set_orb_dio |
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/* If we use the PWM for anything else besides the ORB, this implementation needs to be done better */ |
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/** |
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* Disables the orb color fading capabilities |
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* by disabling the timer1 interrupt. |
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* |
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* @see orb_init |
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**/ |
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void orb_disable() |
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{ |
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391 |
TCCR3B &= 0; //Turn off everything |
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ORB_PORT |= _BV(ORB1_RED); |
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ORB_PORT |= _BV(ORB1_GREEN); |
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ORB_PORT |= _BV(ORB1_BLUE); |
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ORB_PORT |= _BV(ORB2_RED); |
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ORB_PORT |= _BV(ORB2_GREEN); |
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ORB_PORT |= _BV(ORB2_BLUE); |
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} |
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399 |
|
|
400 |
//DOES THIS WORK? |
|
401 |
// Enables the timer1 interrupt, enabling the Orb's color fading capabilities |
|
402 |
/** |
|
403 |
* Enables the orb's color fading capabilities. |
|
404 |
* |
|
405 |
* @see orb_init |
|
406 |
**/ |
|
407 |
void orb_enable() |
|
408 |
{ |
|
409 |
// TCCR0 |= _BV(COM01) | _BV(COM00) | _BV(WGM00) | _BV(CS01); //Toggle OC Pin on match, FAST PWM Mode, clock/8 |
|
410 |
TCCR3B =_BV(CS31); |
|
411 |
} |
|
412 |
|
|
413 |
/** @} **/ //end group |
|
414 |
|
trunk/code/lib/src/libdragonfly/time.c | ||
---|---|---|
1 |
/** |
|
2 |
* Copyright (c) 2007 Colony Project |
|
3 |
* |
|
4 |
* Permission is hereby granted, free of charge, to any person |
|
5 |
* obtaining a copy of this software and associated documentation |
|
6 |
* files (the "Software"), to deal in the Software without |
|
7 |
* restriction, including without limitation the rights to use, |
|
8 |
* copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
9 |
* copies of the Software, and to permit persons to whom the |
|
10 |
* Software is furnished to do so, subject to the following |
|
11 |
* conditions: |
|
12 |
* |
|
13 |
* The above copyright notice and this permission notice shall be |
|
14 |
* included in all copies or substantial portions of the Software. |
|
15 |
* |
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
|
17 |
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
|
18 |
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
|
19 |
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
|
20 |
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
|
21 |
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
|
22 |
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
|
23 |
* OTHER DEALINGS IN THE SOFTWARE. |
|
24 |
**/ |
|
25 |
|
|
26 |
|
|
27 |
/** |
|
28 |
* @file time.c |
|
29 |
* @brief Timer code |
|
30 |
* |
|
31 |
* Implementation of functions for timers. |
|
32 |
* |
|
33 |
* @author Colony Project, CMU Robotics Club |
|
34 |
**/ |
|
35 |
|
|
36 |
/* |
|
37 |
time.c |
|
38 |
anything that requires a delay |
|
39 |
mostly delay_ms |
|
40 |
|
|
41 |
author: Robotics Club, Colony Project |
|
42 |
|
|
43 |
Change Log: |
|
44 |
2.5.07 - Kevin |
|
45 |
Aaron fixed the orb/servo code and made them use timer3 but compare registers B and C. He hard set the prescaler |
|
46 |
to 8 so the RTC broke. Changed it so that we use a 8 prescaler which sets the compare match at 1/16th of a second. |
|
47 |
You now count how many 16ths of a second you want until you trigger your actual interrupt. Works. Changed defines |
|
48 |
for time so you can still call rtc_init with a scale but now it is defined in terms of actual time like second, quarter_second |
|
49 |
etc. Read that section in the time.h file for more information. Tested and works, though the clock drifts more than |
|
50 |
it used to |
|
51 |
1.30.07 - Kevin |
|
52 |
Modified the clock to run on timer3 on the Dragonfly. Works with decent accuracy. Using a prescaler of 256 |
|
53 |
the timer counts up to a precomputer value which will trigger an interrupt and reset the timer. Multiples of |
|
54 |
256 change it by that multiple. Refer to the time.h file for all possible prescalers. |
|
55 |
The interrupt will call a specified function _rtc_func every pulse. |
|
56 |
All of it has been tested and it works. |
|
57 |
|
|
58 |
*/ |
|
59 |
#include <avr/interrupt.h> |
|
60 |
#include <util/delay.h> |
|
61 |
#include <time.h> |
|
62 |
#include <serial.h> |
|
63 |
|
|
64 |
/* Calculate how many cycles to delay for to get 1 ms. Based on F_CPU which should be defined by the makefile */ |
|
65 |
#ifdef F_CPU |
|
66 |
#define WAIT_CYCLES ((F_CPU / 1000) / 10) |
|
67 |
#else |
|
68 |
#define WAIT_CYCLES (8000 / 10) |
|
69 |
#endif |
|
70 |
|
|
71 |
static volatile int _rtc_val = 0; |
|
72 |
static volatile int _rtc_pulse = 0; |
|
73 |
static volatile int _rtc_scale = 32; //Defaults to 1 Second per pulse |
|
74 |
static void (*_rtc_f)(void) = 0; |
|
75 |
|
|
76 |
|
|
77 |
|
|
78 |
/** |
|
79 |
* @defgroup time Time |
|
80 |
* @brief Time functions |
|
81 |
* |
|
82 |
* Functions dealing with time. |
|
83 |
* |
|
84 |
* @{ |
|
85 |
**/ |
|
86 |
|
|
87 |
/** |
|
88 |
* Delays for the specified number of milliseconds. |
|
89 |
* It depends on F_CPU to be defined in order to calculate how many cycles |
|
90 |
* it should delay. If it is not defined, a default clock of 8MHz is assumed. |
|
91 |
* |
|
92 |
* We use _delay_loop_2 which will run assembly instructions that should be |
|
93 |
* 4 cycles long. Optimizations must be enabled for this to be true. |
|
94 |
* That function is called to ensure around 1ms per execution. To generate |
|
95 |
* multiple ms we run a for loop of how many milliseconds are desired. |
|
96 |
* |
|
97 |
* The error should be just the skew on the oscillator as the formula to |
|
98 |
* calculate delay cycles should always be a whole number. The is some skew |
|
99 |
* in practice though it is unavoidable. Delaying for less than 1s should make |
|
100 |
* the error negligable. |
|
101 |
* |
|
102 |
* @param ms the number of milliseconds to delay for |
|
103 |
**/ |
|
104 |
void delay_ms(int ms) { |
|
105 |
for (; ms > 0; ms--) { |
|
106 |
_delay_loop_2(WAIT_CYCLES); |
|
107 |
} |
|
108 |
} |
|
109 |
|
|
110 |
|
|
111 |
/* Prescales defined in time.h. SECOND will give you 1 second. |
|
112 |
More scales are defined in the time.h file. |
|
113 |
rtc_func is the address to a function that you want called every clock tick. */ |
|
114 |
/** |
|
115 |
* Initializes the real time clock. Prescales are defined in time.h. |
|
116 |
* For example, SECOND will give 1 second. The specified function is |
|
117 |
* called every clock tick. For the real time clock to activate, |
|
118 |
* interrupts must be enabled. (through sei() ) |
|
119 |
* |
|
120 |
* @param prescale_opt the period with which the timer is triggered |
|
121 |
* @param rtc_func the function called when the timer is triggered |
|
122 |
* |
|
123 |
* @see rtc_get, rtc_reset |
|
124 |
* |
|
125 |
**/ |
|
126 |
void rtc_init(int prescale_opt, void (*rtc_func)(void)) { |
|
127 |
|
|
128 |
//Clear timer register for Timer 3 |
|
129 |
TCNT3 = 0; |
|
130 |
|
|
131 |
/* This sets the Waveform Generation Module to CTC (Clear Timer on Compare) Mode (100) |
|
132 |
See page135 in Atmega128 Docs for more modes and explanations */ |
|
133 |
TCCR3B |= _BV(WGM32); |
|
134 |
|
|
135 |
/* This sets the prescaler for the system clock (8MHz) ie: divides the clock by some number. |
|
136 |
Currently set to a prescaler of 8 because that is what the orb and servos use (they are on this timer as well) |
|
137 |
See page137 in Atemga128 Docs for all the available prescalers */ |
|
138 |
TCCR3B |= _BV(CS31); |
|
139 |
|
|
140 |
/* Sets the two regsiters that we compare against. So the timer counts up to this number and |
|
141 |
then resets back to 0 and calls the compare match interrupt. |
|
142 |
8x10^6 / 8 = 1/16 Second. All values are based off of this number. Do not change it unless you |
|
143 |
are l337*/ |
|
144 |
|
|
145 |
OCR3A = 0xF424; |
|
146 |
|
|
147 |
/* Enable Output Compare A Interrupt. When OCR3A is met by the timer TCNT3 this interrupt will be |
|
148 |
triggerd. (See page140 in Atmega128 Docs for more information */ |
|
149 |
ETIMSK |= _BV(OCIE3A); |
|
150 |
|
|
151 |
/* Store the pointer to the function to be used in the interrupt */ |
|
152 |
_rtc_f = rtc_func; |
|
153 |
|
|
154 |
/* Store how many 1/16ths of a second you want to let by before triggering an interrupt */ |
|
155 |
_rtc_scale = prescale_opt; |
|
156 |
} |
|
157 |
|
|
158 |
/** |
|
159 |
* Returns the time elapsed in seconds since the last call to |
|
160 |
* rtc_init or rtc_reset. |
|
161 |
* |
|
162 |
* @return the number of seconds since the last call to rtc_init or rtc_reset |
|
163 |
* |
|
164 |
* @see rtc_init, rtc_reset |
|
165 |
**/ |
|
166 |
int rtc_get(void) { |
|
167 |
return _rtc_val; |
|
168 |
} |
|
169 |
|
|
170 |
/** |
|
171 |
* Resets the real time clock counter to 0. |
|
172 |
* |
|
173 |
* @see rtc_init, rtc_get |
|
174 |
**/ |
|
175 |
void rtc_reset(void) { |
|
176 |
_rtc_val = 0; |
|
177 |
} |
|
178 |
|
|
179 |
/** @} **/ //end defgroup |
|
180 |
|
|
181 |
/* Called every pulse. Function in _rtc_f is called every _rtc_scale and also the counter is updated. |
|
182 |
Bascially, since the pulse is hard set at 1/16s you want to count how many 16ths of a second have passed |
|
183 |
and when it reaches the amount of time you want, execute the code. */ |
|
184 |
SIGNAL(TIMER3_COMPA_vect) { |
|
185 |
|
|
186 |
if (_rtc_pulse == _rtc_scale) { |
|
187 |
//Increment the real time clock counter |
|
188 |
_rtc_val++; |
|
189 |
|
|
190 |
//Calls the function tied to the real time clock if defined |
|
191 |
if(_rtc_f != 0) |
|
192 |
_rtc_f(); |
|
193 |
|
|
194 |
//Resets the pulse until the next scale is matched |
|
195 |
_rtc_pulse = 0; |
|
196 |
} |
|
197 |
|
|
198 |
//Updates the amount of pulses seen since the last scale match |
|
199 |
_rtc_pulse++; |
|
200 |
|
|
201 |
} |
trunk/code/lib/src/libdragonfly/motor.c | ||
---|---|---|
1 |
/** |
|
2 |
* Copyright (c) 2007 Colony Project |
|
3 |
* |
|
4 |
* Permission is hereby granted, free of charge, to any person |
|
5 |
* obtaining a copy of this software and associated documentation |
|
6 |
* files (the "Software"), to deal in the Software without |
|
7 |
* restriction, including without limitation the rights to use, |
|
8 |
* copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
9 |
* copies of the Software, and to permit persons to whom the |
|
10 |
* Software is furnished to do so, subject to the following |
|
11 |
* conditions: |
|
12 |
* |
|
13 |
* The above copyright notice and this permission notice shall be |
|
14 |
* included in all copies or substantial portions of the Software. |
|
15 |
* |
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
|
17 |
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
|
18 |
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
|
19 |
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
|
20 |
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
|
21 |
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
|
22 |
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
|
23 |
* OTHER DEALINGS IN THE SOFTWARE. |
|
24 |
**/ |
|
25 |
|
|
26 |
|
|
27 |
/** |
|
28 |
* @file motor.c |
|
29 |
* @brief Motors |
|
30 |
* |
|
31 |
* Implementation of functions for controlling the motors. |
|
32 |
* |
|
33 |
* @author Colony Project, CMU Robotics Club |
|
34 |
* Much of this is taken from FWR's library, author: Tom Lauwers |
|
35 |
**/ |
|
36 |
|
|
37 |
#include "motor.h" |
|
38 |
|
|
39 |
/** |
|
40 |
* @defgroup motors Motors |
|
41 |
* @brief Functions for controlling the motors. |
|
42 |
* Functions for controlling the motors. Found in motor.h. |
|
43 |
* @{ |
|
44 |
**/ |
|
45 |
|
|
46 |
/** |
|
47 |
* Initializes both motors so that they can be used with future |
|
48 |
* calls to motor1_set and motor2_set. |
|
49 |
* |
|
50 |
* @see motors_off, motor1_set, motor2_set |
|
51 |
**/ |
|
52 |
void motors_init( void ) { |
|
53 |
// Configure counter such that we use phase correct |
|
54 |
// PWM with 8-bit resolution |
|
55 |
PORTA &= 0x0F; |
|
56 |
DDRA |= 0xF0; |
|
57 |
DDRB |= 0x60; |
|
58 |
|
|
59 |
//timer 1A and 1B |
|
60 |
TCCR1A = _BV(COM1A1) | _BV(COM1B1) | _BV(WGM10); |
|
61 |
TCCR1B = _BV(WGM12) | _BV(CS10); |
|
62 |
// TCCR1A = 0xA1; |
|
63 |
// TCCR1B = 0x04; |
|
64 |
OCR1AH=0; |
|
65 |
OCR1AL=0; |
|
66 |
OCR1BH=0; |
|
67 |
OCR1BL=0; |
|
68 |
} |
|
69 |
|
|
70 |
/** |
|
71 |
* Sets the speed and direction of motor1. |
|
72 |
* motors_init must be called before this function can be used. |
|
73 |
* |
|
74 |
* @param direction Either FORWARD or BACKWARD to set the direction of rotation. |
|
75 |
* @param speed The speed the motor will run at, in the range 0-255. |
|
76 |
* |
|
77 |
* @see motor2_set, motors_init |
|
78 |
**/ |
|
79 |
void motor1_set(int direction, int speed) { |
|
80 |
|
|
81 |
if(direction == 0) { |
|
82 |
// turn off PWM first if switching directions |
|
83 |
if((PORTA & 0x30) != 0x10) { |
|
84 |
OCR1A = 0; |
|
85 |
} |
|
86 |
PORTA = (PORTA & 0xCF) | 0x10; |
|
87 |
// PORTD |= 0x10; |
|
88 |
// PORTD &= 0xBF; |
|
89 |
} else { |
|
90 |
// turn off PWM first if switching directions |
|
91 |
if((PORTA & 0x30) != 0x20) { |
|
92 |
OCR1A = 0; |
|
93 |
} |
|
94 |
PORTA = (PORTA & 0xCF) | 0x20; |
|
95 |
// PORTD |= 0x40; |
|
96 |
// PORTD &= 0xEF; |
|
97 |
} |
|
98 |
|
|
99 |
// Set the timer to count up to speed, an 8-bit value |
|
100 |
OCR1AL = speed; |
|
101 |
} |
|
102 |
|
|
103 |
/** |
|
104 |
* Sets the speed and direction of motor2. |
|
105 |
* motors_init must be called before this function can be used. |
|
106 |
* |
|
107 |
* @param direction Either FORWARD or BACKWARD to set the direction of rotation. |
|
108 |
* @param speed The speed the motor will run at, in the range 0-255. |
|
109 |
* |
|
110 |
* @see motor1_set, motors_init |
|
111 |
**/ |
|
112 |
void motor2_set(int direction, int speed) { |
|
113 |
if(direction == 0) { |
|
114 |
// PORTD |= 0x20; |
|
115 |
// PORTD &= 0x7F; |
|
116 |
// turn off PWM first if switching directions |
|
117 |
if((PORTA & 0xC0) != 0x80) { |
|
118 |
OCR1B = 0; |
|
119 |
} |
|
120 |
|
|
121 |
PORTA = (PORTA & 0x3F) | 0x80; |
|
122 |
} else { |
|
123 |
// PORTD |= 0x80; |
|
124 |
// PORTD &= 0xDF; |
|
125 |
|
|
126 |
// turn off PWM first if switching directions |
|
127 |
if((PORTA & 0xC0) != 0x40) { |
|
128 |
OCR1B = 0; |
|
129 |
} |
|
130 |
|
|
131 |
PORTA = (PORTA & 0x3F) | 0x40; |
|
132 |
} |
|
133 |
OCR1BL = speed; |
|
134 |
} |
|
135 |
|
|
136 |
/** |
|
137 |
* Turns off both motors. |
|
138 |
* |
|
139 |
* @see motors_init |
|
140 |
**/ |
|
141 |
void motors_off( void ) { |
|
142 |
OCR1AL = 0x0; |
|
143 |
OCR1BL = 0x0; |
|
144 |
} |
|
145 |
|
|
146 |
/**@}**///end defgroup |
|
147 |
|
trunk/code/lib/src/libdragonfly/analog.c | ||
---|---|---|
1 |
/** |
|
2 |
* Copyright (c) 2007 Colony Project |
|
3 |
* |
|
4 |
* Permission is hereby granted, free of charge, to any person |
|
5 |
* obtaining a copy of this software and associated documentation |
|
6 |
* files (the "Software"), to deal in the Software without |
|
7 |
* restriction, including without limitation the rights to use, |
|
8 |
* copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
9 |
* copies of the Software, and to permit persons to whom the |
|
10 |
* Software is furnished to do so, subject to the following |
|
11 |
* conditions: |
|
12 |
* |
|
13 |
* The above copyright notice and this permission notice shall be |
|
14 |
* included in all copies or substantial portions of the Software. |
|
15 |
* |
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
|
17 |
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
|
18 |
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
|
19 |
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
|
20 |
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
|
21 |
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
|
22 |
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
|
23 |
* OTHER DEALINGS IN THE SOFTWARE. |
|
24 |
**/ |
|
25 |
|
|
26 |
/** |
|
27 |
* @file analog.c |
|
28 |
* @brief Analog input and output |
|
29 |
* |
|
30 |
* Contains functions for manipulating the ADC on the Dragonfly board. |
|
31 |
* |
|
32 |
* @author Colony Project, CMU Robotics Club |
|
33 |
* code mostly taken from fwr analog file (author: Tom Lauwers) |
|
34 |
**/ |
|
35 |
|
|
36 |
#include <util/delay.h> |
|
37 |
#include <avr/interrupt.h> |
|
38 |
#include "analog.h" |
|
39 |
#include "serial.h" |
|
40 |
// Internal Function Prototypes |
|
41 |
void set_adc_mux(int which); |
|
42 |
|
|
43 |
/** |
|
44 |
* @defgroup analog Analog |
|
45 |
* Functions for manipulation the ADC on the dragonfly board. |
|
46 |
* All definitions may be found in analog.h. |
|
47 |
* |
|
48 |
* @{ |
|
49 |
**/ |
|
50 |
|
|
51 |
int adc_loop_running = 0; |
|
52 |
int adc_current_port = 0; |
|
53 |
adc_t an_val[11]; |
|
54 |
|
|
55 |
/** |
|
56 |
* Initializes the ADC. |
|
57 |
* Call analog_init before reading from the analog ports. |
|
58 |
* |
|
59 |
* @see analog8, analog10, analog_get8, analog_get10 |
|
60 |
**/ |
|
61 |
void analog_init(int start_conversion) { |
|
62 |
for (int i = 0; i < 11; i++) { |
|
63 |
an_val[i].adc10 = 0; |
|
64 |
an_val[i].adc8 = 0; |
|
65 |
} |
|
66 |
|
|
67 |
// ADMUX register |
|
68 |
// Bit 7,6 - Set voltage reference to AVcc (0b01) |
|
69 |
// Bit 5 - ADLAR set to simplify moving from register |
|
70 |
// Bit 4 - X |
|
71 |
// Bit 3:0 - Sets the current channel |
|
72 |
// Initializes to read from AN1 first (AN0 is reservered for the BOM) |
|
73 |
ADMUX = 0; |
|
74 |
ADMUX |= ADMUX_OPT | _BV(MUX0); |
|
75 |
|
|
76 |
// ADC Status Register A |
|
77 |
// Bit 7 - ADEN is set (enables analog) |
|
78 |
// Bit 6 - Start conversion bit is set (must be done once for free-running mode) |
|
79 |
// Bit 5 - Enable Auto Trigger (for free running mode) NOT DOING THIS RIGHT NOW |
|
80 |
// Bit 4 - ADC interrupt flag, 0 |
|
81 |
// Bit 3 - Enable ADC Interrupt (required to run free-running mode) |
|
82 |
// Bits 2-0 - Set to create a clock divisor of 128, to make ADC clock = 8,000,000/64 = 125kHz |
|
83 |
ADCSRA = 0; |
|
84 |
ADCSRA |= _BV(ADEN) | _BV(ADIE) | _BV(ADPS2) | _BV(ADPS1) | _BV(ADPS0); |
|
85 |
|
|
86 |
// Set external mux lines to outputs |
|
87 |
DDRG |= 0x1C; |
|
88 |
|
|
89 |
// Set up first port for conversions |
|
90 |
set_adc_mux(0x00); |
|
91 |
adc_current_port = AN1; |
|
92 |
|
|
93 |
//Start the conversion if requested |
|
94 |
if (start_conversion) |
|
95 |
analog_start_loop(); |
|
96 |
else |
|
97 |
analog_stop_loop(); |
|
98 |
} |
|
99 |
|
|
100 |
/** |
|
101 |
* Returns the 8-bit analog conversion of which from |
|
102 |
* the lookup table. If the requested port is the BOM_PORT |
|
103 |
* you will get an automatic 0 since the BOM_PORT is not |
|
104 |
* read in the loop and not stored. If you need that port |
|
105 |
* you should use the functions in bom.c. There is an analog_get8 |
|
106 |
* function which for instant lookups but should be avoided unless |
|
107 |
* you know what you're doing. |
|
108 |
* |
|
109 |
* @param which the port that you want to read |
|
110 |
* |
|
111 |
* @bug may cause a seg fault if which is a larger value |
|
112 |
* than exists in an_val table. Not sure if we should fix |
|
113 |
* this or not since it would add overhead. |
|
114 |
* |
|
115 |
* @return 8-bit analog value for the which port requested |
|
116 |
* |
|
117 |
* @see analog10, analog_get8, analog_get10 |
|
118 |
**/ |
|
119 |
unsigned int analog8(int which) { |
|
120 |
if (which == BOM_PORT) { |
|
121 |
return 0; |
|
122 |
} else { |
|
123 |
return an_val[which - 1].adc8; |
|
124 |
} |
|
125 |
} |
|
126 |
|
|
127 |
/** |
|
128 |
* Returns the 10-bit analog conversion of which from |
|
129 |
* the lookup table. If the requested port is the BOM_PORT |
|
130 |
* you will get an automatic 0 since the BOM_PORT is not |
|
131 |
* read in the loop and not stored. If you need that port |
|
132 |
* you should use the functions in bom.c. There is an analog_get10 |
|
133 |
* function which for instant lookups but should be avoided unless |
|
134 |
* you know what you are doing. |
|
135 |
* |
|
136 |
* @param which the port that you want to read |
|
137 |
* |
|
138 |
* @bug may cause a seg fault if which is a larger value |
|
139 |
* than exists in an_val table. Not sure if we should fix |
|
140 |
* this or not since it would add overhead. |
|
141 |
* |
|
142 |
* @return 10-bit analog value for the which port requested |
|
143 |
* |
|
144 |
* @see analog8, analog_get8, analog_get10 |
|
145 |
**/ |
|
146 |
unsigned int analog10(int which) { |
|
147 |
if (which == BOM_PORT) { |
|
148 |
return 0; |
|
149 |
} else { |
|
150 |
return an_val[which - 1].adc10; |
|
151 |
} |
|
152 |
} |
|
153 |
|
|
154 |
/** |
|
155 |
* Starts the analog update loop. Will continue to run |
|
156 |
* until analog_stop_loop is called. |
|
157 |
* |
|
158 |
* @see analog_stop_loop |
|
159 |
**/ |
|
160 |
void analog_start_loop(void) { |
|
161 |
//Start the conversion |
|
162 |
ADCSRA |= _BV(ADSC); |
|
163 |
adc_loop_running = 0x1; |
|
164 |
} |
|
165 |
|
|
166 |
/** |
|
167 |
* Stops the analog update loop. If there is a current |
|
168 |
* read, it will finish up and be stored before the loop |
|
169 |
* is interrupted. No further updates will be made until |
|
170 |
* the loop is started again. |
|
171 |
* |
|
172 |
* @see analog_start_loop |
|
173 |
**/ |
|
174 |
void analog_stop_loop(void) { |
|
175 |
//Stop the conversion |
|
176 |
adc_loop_running = 0x0; |
|
177 |
} |
|
178 |
/** |
|
179 |
* Reads an 8-bit number from an analog port. |
|
180 |
* analog_init must be called before using this function. |
|
181 |
* The analog loop must also be stopped before using this |
|
182 |
* function or you will mess up the lookup table. You |
|
183 |
* must also reenabled the loop when you are done unless |
|
184 |
* you are doing more instant reads. See analog_stop_loop |
|
185 |
* and analog_start_loop for more information about the loop. |
|
186 |
* |
|
187 |
* @param which the analog port to read from. One of |
|
188 |
* the constants AN0 - AN7. |
|
189 |
* |
|
190 |
* @return the 8-bit input to the specified port |
|
191 |
* |
|
192 |
* @see analog_init, analog_get10, analog8, analog_stop_loop, |
|
193 |
* analog_start_loop |
|
194 |
**/ |
|
195 |
unsigned int analog_get8(int which) { |
|
196 |
// Let any previous conversion finish |
|
197 |
while (ADCSRA & _BV(ADSC)); |
|
198 |
|
|
199 |
if(which < EXT_MUX) { |
|
200 |
ADMUX = ADMUX_OPT + which; |
|
201 |
} else { |
|
202 |
ADMUX = ADMUX_OPT + EXT_MUX; |
|
203 |
set_adc_mux(which - 8); |
|
204 |
} |
|
205 |
|
|
206 |
// Start the conversion |
|
207 |
ADCSRA |= _BV(ADSC); |
|
208 |
|
|
209 |
// Wait for the conversion to finish |
|
210 |
while (ADCSRA & _BV(ADSC)); |
|
211 |
|
|
212 |
return ADCH; //since we left aligned the data, ADCH is the 8 MSB. |
|
213 |
} |
|
214 |
|
|
215 |
/** |
|
216 |
* Reads an 10-bit number from an analog port. |
|
217 |
* analog_init must be called before using this function. |
|
218 |
* The analog loop must also be stopped before using this |
|
219 |
* function or you will mess up the lookup table. You |
|
220 |
* must also reenabled the loop when you are done unless |
|
221 |
* you are doing more instant reads. See analog_stop_loop |
|
222 |
* and analog_start_loop for more information about the loop. |
|
223 |
* |
|
224 |
* |
|
225 |
* @param which the analog port to read from. Typically |
|
226 |
* a constant, one of AN0 - AN7. |
|
227 |
* |
|
228 |
* @return the 10-bit number input to the specified port |
|
229 |
* |
|
230 |
* @see analog_init, analog_get8, analog10, analog_stop_loop, |
|
231 |
* analog_start_loop |
|
232 |
**/ |
|
233 |
unsigned int analog_get10(int which) { |
|
234 |
int adc_h; |
|
235 |
int adc_l; |
|
236 |
|
|
237 |
// Let any previous conversion finish |
|
238 |
while (ADCSRA & _BV(ADSC)); |
|
239 |
|
|
240 |
if(which < EXT_MUX) { |
|
241 |
ADMUX = ADMUX_OPT + which; |
|
242 |
} else { |
|
243 |
ADMUX = ADMUX_OPT + EXT_MUX; |
|
244 |
set_adc_mux(which - 8); |
|
245 |
} |
|
246 |
|
|
247 |
// Start the conversion |
|
248 |
ADCSRA |= _BV(ADSC); |
|
249 |
|
|
250 |
// Wait for the conversion to finish |
|
251 |
while (ADCSRA & _BV(ADSC)); |
|
252 |
|
|
253 |
adc_l = ADCL; |
|
254 |
adc_h = ADCH; |
|
255 |
|
|
256 |
return ((adc_h << 2) | (adc_l >> 6)); |
|
257 |
} |
|
258 |
|
|
259 |
/** |
|
260 |
* Returns the current position of the wheel, as an integer |
|
261 |
* in the range 0 - 255. |
|
262 |
* analog_init must be called before using this function. |
|
263 |
* |
|
264 |
* @return the orientation of the wheel, as an integer in |
|
265 |
* the range 0 - 255. |
|
266 |
* |
|
267 |
* @see analog_init |
|
268 |
**/ |
|
269 |
int wheel(void) { |
|
270 |
return analog8(WHEEL_PORT); |
|
271 |
} |
|
272 |
|
|
273 |
|
|
274 |
/** |
|
275 |
* Sets the value of the external analog mux. Values are read |
|
276 |
* on AN7 physical port. (AN8 - AN15 are "virtual" ports). |
|
277 |
* |
|
278 |
* @param which which analog mux port (0-7) which corresponds |
|
279 |
* to AN8-AN15. |
|
280 |
* |
|
281 |
* @bug FIX THIS IN THE NEXT BOARD REVISION: |
|
282 |
* ADDR2 ADDR1 ADDR0 |
|
283 |
* G2.G4.G3 set mux to port 0-7 via vinary selection |
|
284 |
* math would be much cleaner if it was G4.G3.G2 |
|
285 |
* |
|
286 |
* @see analog_init |
|
287 |
**/ |
|
288 |
void set_adc_mux(int which) { |
|
289 |
// mask so only proper bits are possible. |
|
290 |
PORTG = (PORTG & 0xE3) | ((which & 0x03) << 3) | (which & 0x04); |
|
291 |
} |
|
292 |
|
|
293 |
/**@}**/ //end defgroup |
|
294 |
|
|
295 |
|
|
296 |
ISR(ADC_vect) { |
|
297 |
static volatile int adc_prev_loop_running = 0; |
|
298 |
int adc_h = 0; |
|
299 |
int adc_l = 0; |
|
300 |
|
|
301 |
//Store the value only if this read isn't for the BOM |
|
302 |
if (ADMUX != BOM_PORT) { |
|
303 |
adc_l = ADCL; |
|
304 |
adc_h = ADCH; |
|
305 |
|
|
306 |
an_val[adc_current_port - 1].adc10 = (adc_h << 2) | (adc_l >> 6); |
|
307 |
an_val[adc_current_port - 1].adc8 = adc_h; |
|
308 |
} |
|
309 |
|
|
310 |
//Save the result only if we just turned off the loop |
|
311 |
if (!adc_loop_running && !adc_prev_loop_running) |
|
312 |
return; |
|
313 |
|
|
314 |
adc_prev_loop_running = adc_loop_running; |
|
315 |
|
|
316 |
//Skip AN7 because it is not a real port |
|
317 |
if (adc_current_port == AN6) { |
|
318 |
ADMUX = ADMUX_OPT | EXT_MUX; |
|
319 |
set_adc_mux(AN8 - 8); |
|
320 |
adc_current_port = AN8; |
|
321 |
//Wrap around |
|
322 |
} else if (adc_current_port == AN11) { |
|
323 |
adc_current_port = AN1; |
|
324 |
ADMUX = ADMUX_OPT | adc_current_port; |
|
325 |
//Normal increment |
|
326 |
} else { |
|
327 |
adc_current_port++; |
|
328 |
|
|
329 |
if(adc_current_port < EXT_MUX) { |
|
330 |
ADMUX = ADMUX_OPT | adc_current_port; |
|
331 |
} else { |
|
332 |
ADMUX = ADMUX_OPT | EXT_MUX; |
|
333 |
set_adc_mux(adc_current_port - 8); |
|
334 |
} |
|
335 |
} |
|
336 |
|
|
337 |
//Initiate next conversion only if we are running a loop |
|
338 |
if (!adc_loop_running) { |
|
339 |
return; |
|
340 |
} else { |
|
341 |
ADCSRA |= _BV(ADSC); |
|
342 |
} |
|
343 |
|
|
344 |
return; |
|
345 |
} |
|
346 |
|
trunk/code/lib/src/libdragonfly/lcd.c | ||
---|---|---|
1 |
/** |
|
2 |
* Copyright (c) 2007 Colony Project |
|
3 |
* |
|
4 |
* Permission is hereby granted, free of charge, to any person |
|
5 |
* obtaining a copy of this software and associated documentation |
|
6 |
* files (the "Software"), to deal in the Software without |
|
7 |
* restriction, including without limitation the rights to use, |
|
8 |
* copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
9 |
* copies of the Software, and to permit persons to whom the |
|
10 |
* Software is furnished to do so, subject to the following |
|
11 |
* conditions: |
|
12 |
* |
|
13 |
* The above copyright notice and this permission notice shall be |
|
14 |
* included in all copies or substantial portions of the Software. |
|
15 |
* |
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
|
17 |
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
|
18 |
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
|
19 |
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
|
20 |
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
|
21 |
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
|
22 |
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
|
23 |
* OTHER DEALINGS IN THE SOFTWARE. |
|
24 |
**/ |
|
25 |
|
|
26 |
|
|
27 |
/** |
|
28 |
* @file lcd.c |
|
29 |
* @brief LCD |
|
30 |
* |
|
31 |
* Implementation of functions for using the LCD. |
|
32 |
* |
|
33 |
* @author Colony Project, CMU Robotics Club |
|
34 |
**/ |
|
35 |
#include <avr/io.h> |
|
36 |
#include <lcd.h> |
|
37 |
#include <time.h> |
|
38 |
|
|
39 |
//LCD defines |
|
40 |
#define RST _BV(4) // pd4 (GPIO) |
|
41 |
#define SCE _BV(0) // pb0 (~SS) |
|
42 |
#define D_C _BV(5) // pd5 (GPIO?) |
|
43 |
#define SDI _BV(2) // pb2 (MOSI) |
|
44 |
#define SCK _BV(1) // pb1 (SCK) |
|
45 |
|
|
46 |
#define LCDPORT PORTB |
|
47 |
#define LCDDDR DDRB |
|
48 |
|
|
49 |
#define LCDRESETPORT PORTD |
|
50 |
#define LCDRESETDDR DDRD |
|
51 |
|
|
52 |
void lcd_putbyte(unsigned char b); |
|
53 |
|
|
54 |
|
|
55 |
//**************************************Old shit below!***************** |
|
56 |
/* |
|
57 |
FontLookup - a lookup table for all characters |
|
58 |
*/ |
|
59 |
static const unsigned char FontLookup [][5] = |
|
60 |
{ |
|
61 |
{ 0x00, 0x00, 0x00, 0x00, 0x00 }, // sp |
|
62 |
{ 0x00, 0x00, 0x5f, 0x00, 0x00 }, // ! |
|
63 |
{ 0x00, 0x07, 0x00, 0x07, 0x00 }, // " |
|
64 |
{ 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // # |
|
65 |
{ 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, // $ |
|
66 |
{ 0x23, 0x13, 0x08, 0x64, 0x62 }, // % |
|
67 |
{ 0x36, 0x49, 0x55, 0x22, 0x50 }, // & |
|
68 |
{ 0x00, 0x05, 0x03, 0x00, 0x00 }, // ' |
|
69 |
{ 0x00, 0x1c, 0x22, 0x41, 0x00 }, // ( |
|
70 |
{ 0x00, 0x41, 0x22, 0x1c, 0x00 }, // ) |
|
71 |
{ 0x14, 0x08, 0x3E, 0x08, 0x14 }, // * |
|
72 |
{ 0x08, 0x08, 0x3E, 0x08, 0x08 }, // + |
|
73 |
{ 0x00, 0x00, 0x50, 0x30, 0x00 }, // , |
|
74 |
{ 0x10, 0x10, 0x10, 0x10, 0x10 }, // - |
|
75 |
{ 0x00, 0x60, 0x60, 0x00, 0x00 }, // . |
|
76 |
{ 0x20, 0x10, 0x08, 0x04, 0x02 }, // / |
|
77 |
{ 0x3E, 0x51, 0x49, 0x45, 0x3E }, // 0 |
|
78 |
{ 0x00, 0x42, 0x7F, 0x40, 0x00 }, // 1 |
|
79 |
{ 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2 |
|
80 |
{ 0x21, 0x41, 0x45, 0x4B, 0x31 }, // 3 |
|
81 |
{ 0x18, 0x14, 0x12, 0x7F, 0x10 }, // 4 |
|
82 |
{ 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5 |
|
83 |
{ 0x3C, 0x4A, 0x49, 0x49, 0x30 }, // 6 |
|
84 |
{ 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7 |
|
85 |
{ 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8 |
|
86 |
{ 0x06, 0x49, 0x49, 0x29, 0x1E }, // 9 |
|
87 |
{ 0x00, 0x36, 0x36, 0x00, 0x00 }, // : |
|
88 |
{ 0x00, 0x56, 0x36, 0x00, 0x00 }, // ; |
|
89 |
{ 0x08, 0x14, 0x22, 0x41, 0x00 }, // < |
|
90 |
{ 0x14, 0x14, 0x14, 0x14, 0x14 }, // = |
|
91 |
{ 0x00, 0x41, 0x22, 0x14, 0x08 }, // > |
|
92 |
{ 0x02, 0x01, 0x51, 0x09, 0x06 }, // ? |
|
93 |
{ 0x32, 0x49, 0x59, 0x51, 0x3E }, // @ |
|
94 |
{ 0x7E, 0x11, 0x11, 0x11, 0x7E }, // A |
|
95 |
{ 0x7F, 0x49, 0x49, 0x49, 0x36 }, // B |
|
96 |
{ 0x3E, 0x41, 0x41, 0x41, 0x22 }, // C |
|
97 |
{ 0x7F, 0x41, 0x41, 0x22, 0x1C }, // D |
|
98 |
{ 0x7F, 0x49, 0x49, 0x49, 0x41 }, // E |
|
99 |
{ 0x7F, 0x09, 0x09, 0x09, 0x01 }, // F |
|
100 |
{ 0x3E, 0x41, 0x49, 0x49, 0x7A }, // G |
|
101 |
{ 0x7F, 0x08, 0x08, 0x08, 0x7F }, // H |
|
102 |
{ 0x00, 0x41, 0x7F, 0x41, 0x00 }, // I |
|
103 |
{ 0x20, 0x40, 0x41, 0x3F, 0x01 }, // J |
|
104 |
{ 0x7F, 0x08, 0x14, 0x22, 0x41 }, // K |
|
105 |
{ 0x7F, 0x40, 0x40, 0x40, 0x40 }, // L |
|
106 |
{ 0x7F, 0x02, 0x0C, 0x02, 0x7F }, // M |
|
107 |
{ 0x7F, 0x04, 0x08, 0x10, 0x7F }, // N |
|
108 |
{ 0x3E, 0x41, 0x41, 0x41, 0x3E }, // O |
|
109 |
{ 0x7F, 0x09, 0x09, 0x09, 0x06 }, // P |
|
110 |
{ 0x3E, 0x41, 0x51, 0x21, 0x5E }, // Q |
|
111 |
{ 0x7F, 0x09, 0x19, 0x29, 0x46 }, // R |
|
112 |
{ 0x46, 0x49, 0x49, 0x49, 0x31 }, // S |
|
113 |
{ 0x01, 0x01, 0x7F, 0x01, 0x01 }, // T |
|
114 |
{ 0x3F, 0x40, 0x40, 0x40, 0x3F }, // U |
|
115 |
{ 0x1F, 0x20, 0x40, 0x20, 0x1F }, // V |
|
116 |
{ 0x3F, 0x40, 0x38, 0x40, 0x3F }, // W |
|
117 |
{ 0x63, 0x14, 0x08, 0x14, 0x63 }, // X |
|
118 |
{ 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y |
|
119 |
{ 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z |
|
120 |
{ 0x00, 0x7F, 0x41, 0x41, 0x00 }, // [ |
|
121 |
{ 0x02, 0x04, 0x08, 0x10, 0x20 }, // backslash |
|
122 |
{ 0x00, 0x41, 0x41, 0x7F, 0x00 }, // ] |
|
123 |
{ 0x04, 0x02, 0x01, 0x02, 0x04 }, // ^ |
|
124 |
{ 0x40, 0x40, 0x40, 0x40, 0x40 }, // _ |
|
125 |
{ 0x00, 0x01, 0x02, 0x04, 0x00 }, // ' |
|
126 |
{ 0x20, 0x54, 0x54, 0x54, 0x78 }, // a |
|
127 |
{ 0x7F, 0x48, 0x44, 0x44, 0x38 }, // b |
|
128 |
{ 0x38, 0x44, 0x44, 0x44, 0x20 }, // c |
|
129 |
{ 0x38, 0x44, 0x44, 0x48, 0x7F }, // d |
|
130 |
{ 0x38, 0x54, 0x54, 0x54, 0x18 }, // e |
|
131 |
{ 0x08, 0x7E, 0x09, 0x01, 0x02 }, // f |
|
132 |
{ 0x0C, 0x52, 0x52, 0x52, 0x3E }, // g |
|
133 |
{ 0x7F, 0x08, 0x04, 0x04, 0x78 }, // h |
|
134 |
{ 0x00, 0x44, 0x7D, 0x40, 0x00 }, // i |
|
135 |
{ 0x20, 0x40, 0x44, 0x3D, 0x00 }, // j |
|
136 |
{ 0x7F, 0x10, 0x28, 0x44, 0x00 }, // k |
|
137 |
{ 0x00, 0x41, 0x7F, 0x40, 0x00 }, // l |
|
138 |
{ 0x7C, 0x04, 0x18, 0x04, 0x78 }, // m |
|
139 |
{ 0x7C, 0x08, 0x04, 0x04, 0x78 }, // n |
|
140 |
{ 0x38, 0x44, 0x44, 0x44, 0x38 }, // o |
|
141 |
{ 0x7C, 0x14, 0x14, 0x14, 0x08 }, // p |
|
142 |
{ 0x08, 0x14, 0x14, 0x18, 0x7C }, // q |
|
143 |
{ 0x7C, 0x08, 0x04, 0x04, 0x08 }, // r |
|
144 |
{ 0x48, 0x54, 0x54, 0x54, 0x20 }, // s |
|
145 |
{ 0x04, 0x3F, 0x44, 0x40, 0x20 }, // t |
|
146 |
{ 0x3C, 0x40, 0x40, 0x20, 0x7C }, // u |
|
147 |
{ 0x1C, 0x20, 0x40, 0x20, 0x1C }, // v |
|
148 |
{ 0x3C, 0x40, 0x30, 0x40, 0x3C }, // w |
|
149 |
{ 0x44, 0x28, 0x10, 0x28, 0x44 }, // x |
|
150 |
{ 0x0C, 0x50, 0x50, 0x50, 0x3C }, // y |
|
151 |
{ 0x44, 0x64, 0x54, 0x4C, 0x44 }, // z |
|
152 |
{ 0x00, 0x08, 0x36, 0x41, 0x41 }, // { |
|
153 |
{ 0x00, 0x00, 0x7F, 0x00, 0x00 }, // | |
|
154 |
{ 0x41, 0x41, 0x36, 0x08, 0x00 }, // } |
|
155 |
{ 0x02, 0x01, 0x01, 0x02, 0x01 }, // ~ |
|
156 |
{ 0x55, 0x2A, 0x55, 0x2A, 0x55 }, // del |
|
157 |
}; |
|
158 |
|
|
159 |
|
|
160 |
/** |
|
161 |
* @defgroup lcd LCD |
|
162 |
* @brief Functions for the LCD |
|
163 |
* Functions for writing to the LCD. |
|
164 |
* All functions may be found in lcd.h. |
|
165 |
* |
|
166 |
* @{ |
|
167 |
**/ |
|
168 |
|
|
169 |
/** |
|
170 |
* Initializes the LCD. Must be called before any other |
|
171 |
* LCD functions. |
|
172 |
**/ |
|
173 |
void lcd_init(void) { |
|
174 |
LCDDDR |= (SCE | SDI | SCK); |
|
175 |
LCDRESETDDR |= (RST|D_C); |
|
176 |
|
|
177 |
LCDPORT &= ~( SCE | SDI | SCK); |
|
178 |
LCDRESETPORT &=~(D_C); |
|
179 |
|
|
180 |
SPCR |= 0x50;//0b01010000; // no SPI int, SPI en, Master, sample on rising edge, fosc/2 |
|
181 |
SPSR |= 0x01; // a continuation of the above |
|
182 |
|
|
183 |
LCDRESETPORT |= RST; |
|
184 |
delay_ms(10); |
|
185 |
LCDRESETPORT &= (~RST); |
|
186 |
delay_ms(100); |
|
187 |
LCDRESETPORT |= RST; |
|
188 |
|
|
189 |
lcd_putbyte( 0x21 ); // LCD Extended Commands. |
|
190 |
lcd_putbyte( 0xC8 ); // Set LCD Vop (Contrast). |
|
191 |
lcd_putbyte( 0x06 ); // Set Temp coefficent. |
|
192 |
lcd_putbyte( 0x13 ); // LCD bias mode 1:48. |
|
193 |
lcd_putbyte( 0x20 ); // LCD Standard Commands, Horizontal addressing mode. |
|
194 |
lcd_putbyte( 0x0C ); // LCD in normal mode. |
|
195 |
|
|
196 |
LCDRESETPORT |= D_C; //put it in init instead of main |
|
197 |
|
|
198 |
lcd_clear_screen(); |
|
199 |
} |
|
200 |
|
|
201 |
/** |
|
202 |
* Clears the LCD screen. lcd_init must be called first. |
|
203 |
* |
|
204 |
* @see lcd_init |
|
205 |
**/ |
|
206 |
void lcd_clear_screen( void ) { |
|
207 |
int i; |
|
208 |
for (i = 0; i < 504; i++) |
|
209 |
lcd_putbyte(0x0); |
|
210 |
|
|
211 |
lcd_gotoxy(0,0); |
|
212 |
} |
|
213 |
|
|
214 |
/** |
|
215 |
* Prints a character on the LCD screen. lcd_init |
|
216 |
* must be called before this function may be used. |
|
217 |
* |
|
218 |
* @param c the character to print |
|
219 |
* |
|
220 |
* @see lcd_init |
|
221 |
**/ |
|
222 |
void lcd_putc(char c) { |
|
223 |
int i; |
|
224 |
|
|
225 |
for (i = 0; i < 5; i++) |
|
226 |
lcd_putbyte(FontLookup[c-32][i]); |
|
227 |
lcd_putbyte(0); |
|
228 |
} |
|
229 |
|
|
230 |
/* |
|
231 |
print an entire string to the lcd |
|
232 |
*/ |
|
233 |
void lcd_puts(char *s) { |
|
234 |
char *t = s; |
|
235 |
while (*t != 0) { |
|
236 |
lcd_putc(*t); |
|
237 |
t++; |
|
238 |
} |
|
239 |
} |
|
240 |
|
|
241 |
/* |
|
242 |
go to coordinate x, y |
|
243 |
y: vertically - 1 char |
|
244 |
x: horizontally - 1 pixel |
|
245 |
|
|
246 |
multiply x by 6 if want to move 1 entire character |
|
247 |
|
|
248 |
origin (0,0) is at top left corner of lcd screen |
|
249 |
*/ |
|
250 |
|
|
251 |
/** |
|
252 |
* Move the current cursor position to the one specified. |
|
253 |
* lcd_init must be called before this function may be used. |
|
254 |
* |
|
255 |
* @param x The x coordinate of the new position |
|
256 |
* @param y The y coordinate of the new position |
|
257 |
* |
|
258 |
* @see lcd_init |
|
259 |
**/ |
|
260 |
void lcd_gotoxy(int x, int y) { |
|
261 |
LCDRESETPORT &= ~(D_C); |
|
262 |
lcd_putbyte(0x40 | (y & 0x07)); |
|
263 |
lcd_putbyte(0x80 | (x & 0x7f)); |
|
264 |
LCDRESETPORT |= D_C; |
|
265 |
} |
|
266 |
|
|
267 |
/* |
|
268 |
prints an int to the lcd |
|
269 |
|
|
270 |
code adapted from Chris Efstathiou's code (hendrix@otenet.gr) |
|
271 |
*/ |
|
272 |
|
|
273 |
/** |
|
274 |
* Print an integer to the LCD screen. |
|
275 |
* lcd_init must be called before this function may be used. |
|
276 |
* |
|
277 |
* @param value the integer to print |
|
278 |
* |
|
279 |
* @see lcd_init |
|
280 |
**/ |
|
281 |
void lcd_puti(int value ) { |
|
282 |
unsigned char lcd_data[6]={'0','0','0','0','0','0' }, position=sizeof(lcd_data), radix=10; |
|
283 |
|
|
284 |
/* convert int to ascii */ |
|
285 |
if(value<0) { |
|
286 |
lcd_putc('-'); |
|
287 |
value=-value; |
|
288 |
} |
|
289 |
do { |
|
290 |
position--; |
|
291 |
*(lcd_data+position)=(value%radix)+'0'; |
|
292 |
value/=radix; |
|
293 |
} while(value); |
|
294 |
|
|
295 |
|
|
296 |
/* start displaying the number */ |
|
297 |
for(;position<=(sizeof(lcd_data)-1);position++) |
|
298 |
lcd_putc(lcd_data[position]); |
|
299 |
|
|
300 |
return; |
|
301 |
} |
|
302 |
|
Also available in: Unified diff