Revision 188
Moved rs485_poll.h to bootloder since it will never be used by the toolbox
trunk/common/rs485_poll.h | ||
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/******** |
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* This file is part of Tooltron. |
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* |
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* Tooltron is free software: you can redistribute it and/or modify |
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* it under the terms of the Lesser GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* Tooltron is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* Lesser GNU General Public License for more details. |
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* You should have received a copy of the Lesser GNU General Public License |
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* along with Tooltron. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* Copyright 2009 Kevin Woo <kwoo@2ndt.com> |
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* |
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********/ |
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/** |
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* @file rs485_poll.h |
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* @brief Implements rs485 using the uart hardware module. |
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* |
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* See rs485_sw.c for more information |
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* |
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* @author Kevin Woo (kwoo) |
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*/ |
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#ifndef _RS485_SW_H |
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#define _RS485_SW_H |
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#include <avr/io.h> |
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#include <avr/interrupt.h> |
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#include <stdint.h> |
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#define RS485_TX_OFF 0 |
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#define RS485_TX_ON 1 |
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/** @brief RX Pin for the RS485 */ |
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#define RX _BV(PORTD0) |
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/** @brief TX Pin for the RS485 */ |
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#define TX _BV(PORTD1) |
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/** @brief TX Enable Pin for the RS485 */ |
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#define TX_EN _BV(PORTD5) |
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void rs485_init(uint16_t baud); |
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int8_t rs485_get_byte(uint8_t *output_byte); |
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void rs485_send_byte(uint8_t data); |
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#endif |
trunk/bootloader/rs485_poll.h | ||
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/******** |
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* This file is part of Tooltron. |
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* |
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* Tooltron is free software: you can redistribute it and/or modify |
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* it under the terms of the Lesser GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* Tooltron is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* Lesser GNU General Public License for more details. |
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* You should have received a copy of the Lesser GNU General Public License |
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* along with Tooltron. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* Copyright 2009 Kevin Woo <kwoo@2ndt.com> |
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* |
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********/ |
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/** |
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* @file rs485_poll.h |
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* @brief Implements rs485 using the uart hardware module. |
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* |
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* This is compiled for the bootloader so this is just a header file |
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* |
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* @author Kevin Woo (kwoo) |
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*/ |
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#ifndef _RS485_SW_H |
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#define _RS485_SW_H |
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#include <avr/io.h> |
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#include <avr/interrupt.h> |
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#include <stdint.h> |
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#define RS485_TX_OFF 0 |
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#define RS485_TX_ON 1 |
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/** @brief RX Pin for the RS485 */ |
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#define RX _BV(PORTD0) |
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/** @brief TX Pin for the RS485 */ |
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#define TX _BV(PORTD1) |
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/** @brief TX Enable Pin for the RS485 */ |
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#define TX_EN _BV(PORTD5) |
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/** |
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* @brief Initializes the uart |
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* @param baud The baudrate. Use the definitions in rs485_sw.h |
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*/ |
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void rs485_init(uint16_t baud); |
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/** |
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* @brief Non-blocking receive |
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* |
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* Receives a byte from the UART if one exists. If none exist the function |
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* will return an error code immediately. If there is a byte to receive, |
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* it will be placed in a passed in pointer and return. |
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* |
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* @pre The RS485 TXEN line is not enabled |
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* @param output_byte Byte to store the received message |
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* @return 0 on success, negative if there is nothing to receive |
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*/ |
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int8_t rs485_get_byte(uint8_t *output_byte); |
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/** |
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* @brief Blocking send |
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* |
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* Sends the byte in data onto the network. The function will block until |
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* the transmit is complete so that the transmit enable line can be toggled |
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* safely. It will wait until any current transmission completes before sending |
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* and will wait until it completes before returning. The RS485 TX enable line |
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* is automatically toggled by the function and should not be done so |
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* outside the function. |
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* |
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* @param data The byte to send |
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*/ |
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void rs485_send_byte(uint8_t data); |
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#endif |
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