root / trunk / toolbox / main.c @ 154
History | View | Annotate | Download (8.25 KB)
1 |
/********
|
---|---|
2 |
* This file is part of Tooltron.
|
3 |
*
|
4 |
* Tooltron is free software: you can redistribute it and/or modify
|
5 |
* it under the terms of the Lesser GNU General Public License as published by
|
6 |
* the Free Software Foundation, either version 3 of the License, or
|
7 |
* (at your option) any later version.
|
8 |
*
|
9 |
* Tooltron is distributed in the hope that it will be useful,
|
10 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
11 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
12 |
* Lesser GNU General Public License for more details.
|
13 |
* You should have received a copy of the Lesser GNU General Public License
|
14 |
* along with Tooltron. If not, see <http://www.gnu.org/licenses/>.
|
15 |
*
|
16 |
* Copyright 2009 Kevin Woo <kwoo@2ndt.com>
|
17 |
*
|
18 |
********/
|
19 |
/** @file main.c
|
20 |
* @brief Contains the main function for the toolbox code.
|
21 |
*
|
22 |
* @author Suresh Nidhiry (snidhiry), Kevin Woo (kwoo)
|
23 |
*/
|
24 |
|
25 |
//Includes
|
26 |
#include <avr/io.h> |
27 |
#include <avr/interrupt.h> |
28 |
#include <stdint.h> |
29 |
#include <util/delay.h> |
30 |
#include "uart.h" |
31 |
|
32 |
#define RELAY _BV(PORTD4)
|
33 |
#define VAC_SENSE _BV(PIND3)
|
34 |
#define BUT_RED _BV(PINB4)
|
35 |
#define BUT_BLACK _BV(PINB3)
|
36 |
#define LED_GREEN _BV(PORTB2)
|
37 |
#define LED_YELLOW _BV(PORTB1)
|
38 |
#define LED_RED _BV(PORTB0)
|
39 |
#define ON 0x01 |
40 |
#define OFF 0x00 |
41 |
|
42 |
/***** change ADDR ****/
|
43 |
#define ADDR 18 |
44 |
#define DELIM '^' |
45 |
#define SERVER 1 |
46 |
#define TURNON 'O' |
47 |
|
48 |
/***
|
49 |
* TWAIT - minutes to wait before green button is pressed to kill power
|
50 |
* TWARN - minutes until warning (blink yellow, allow more time with green button)
|
51 |
* TMAX - minutes until power is killed (unless tool is on)
|
52 |
*/
|
53 |
#define TWAIT 1 |
54 |
#define TWARN 1 |
55 |
#define TMAX 2 |
56 |
|
57 |
uint8_t sec; |
58 |
uint8_t min; |
59 |
|
60 |
typedef enum { |
61 |
sd, // start delimitor
|
62 |
src, // src
|
63 |
dest, // destination
|
64 |
data, // data
|
65 |
cs, // checksum
|
66 |
ack, // send ack
|
67 |
pwron, // poweron
|
68 |
idiot, // user tried to hit green with the machine switch on
|
69 |
toolon, // tool on
|
70 |
warn, // time warning
|
71 |
off // tool off
|
72 |
} state_t; |
73 |
|
74 |
void init_pins(void) { |
75 |
DDRB = 0x00;
|
76 |
DDRB = _BV(DDB0) | _BV(DDB1) | _BV(DDB2) | _BV(DDB5); |
77 |
DDRD = _BV(DDB4); |
78 |
PORTB = 0x00;
|
79 |
} |
80 |
|
81 |
void toggle_led(uint8_t which, uint8_t state) {
|
82 |
if (state == ON) {
|
83 |
PORTB &= ~which; |
84 |
} else {
|
85 |
PORTB |= which; |
86 |
} |
87 |
} |
88 |
|
89 |
void toggle_relay(uint8_t state) {
|
90 |
if (state == ON) {
|
91 |
PORTD |= RELAY; |
92 |
} else {
|
93 |
PORTD &= ~RELAY; |
94 |
} |
95 |
} |
96 |
|
97 |
inline uint8_t read_vac(void) { |
98 |
return (!(PIND & VAC_SENSE));
|
99 |
} |
100 |
|
101 |
inline uint8_t read_button(uint8_t which) {
|
102 |
return (!(PINB & which));
|
103 |
} |
104 |
|
105 |
void init_timer(void) { |
106 |
// Clear timmer on OCRA1 Compare match
|
107 |
// No prescale
|
108 |
TCCR1B |= _BV(WGM12) | _BV(CS12); |
109 |
|
110 |
// 1 second @ 8MHz clock
|
111 |
OCR1AH =0x7A;
|
112 |
OCR1AL =0x12;
|
113 |
|
114 |
TIMSK = _BV(OCIE1A); |
115 |
|
116 |
sec = 0;
|
117 |
min = 0;
|
118 |
} |
119 |
|
120 |
void reset_timer(void) { |
121 |
sec = 0;
|
122 |
min = 0;
|
123 |
} |
124 |
|
125 |
ISR(TIMER1_COMPA_vect) { |
126 |
if (sec == 59) { |
127 |
sec = 0;
|
128 |
min++; |
129 |
} else {
|
130 |
sec++; |
131 |
} |
132 |
} |
133 |
|
134 |
|
135 |
int main(int argc, char **argv) { |
136 |
state_t state = sd; |
137 |
uint8_t packet[3];
|
138 |
uint8_t ms_timer=0;
|
139 |
|
140 |
/***** Start Start-up Sequence *****/
|
141 |
sei(); //Enable interrupts
|
142 |
init_timer(); //Set registers for timer
|
143 |
init_pins(); //Set pin directions
|
144 |
init_uart(51); //Set registers for uart |
145 |
/***** End Start-up Sequence *****/
|
146 |
while(1) { |
147 |
PORTB |= _BV(PORTB1); |
148 |
_delay_ms(100);
|
149 |
PORTB &= ~_BV(PORTB1); |
150 |
_delay_ms(100);
|
151 |
} |
152 |
|
153 |
uint8_t r; |
154 |
|
155 |
packet[0] = 0x00; |
156 |
packet[1] = 0x00; |
157 |
packet[2] = 0x00; |
158 |
|
159 |
while(1) { |
160 |
/*
|
161 |
usb_puti(min);
|
162 |
uart_send_byte('m');
|
163 |
usb_puti(sec);
|
164 |
uart_send_byte('s');
|
165 |
uart_send_byte('\r');
|
166 |
uart_send_byte('\n');
|
167 |
_delay_ms(500);
|
168 |
*/
|
169 |
|
170 |
switch (state) {
|
171 |
case sd:
|
172 |
toggle_led(LED_RED, ON); |
173 |
toggle_led(LED_YELLOW, OFF); |
174 |
toggle_led(LED_GREEN, OFF); |
175 |
toggle_relay(OFF); |
176 |
while ((uart_get_byte(&r)) < 0); |
177 |
if (r == DELIM) {
|
178 |
state = src; |
179 |
} |
180 |
break;
|
181 |
case src:
|
182 |
while ((uart_get_byte(&r)) < 0); |
183 |
|
184 |
if (r == DELIM) {
|
185 |
state = src; |
186 |
} else {
|
187 |
packet[0] = r;
|
188 |
state = dest; |
189 |
} |
190 |
break;
|
191 |
case dest:
|
192 |
while ((uart_get_byte(&r)) < 0); |
193 |
|
194 |
if (r == DELIM) {
|
195 |
packet[0] = 0x00; |
196 |
state = src; |
197 |
} else if (r == ADDR) { |
198 |
packet[1] = r;
|
199 |
state = data; |
200 |
} else {
|
201 |
packet[0] = 0x00; |
202 |
state = sd; |
203 |
} |
204 |
break;
|
205 |
case data:
|
206 |
while ((uart_get_byte(&r)) < 0); |
207 |
|
208 |
if (r == DELIM) {
|
209 |
packet[0] = 0x00; |
210 |
packet[1] = 0x00; |
211 |
state = src; |
212 |
} else {
|
213 |
packet[2] = r;
|
214 |
state = cs; |
215 |
} |
216 |
break;
|
217 |
case cs:
|
218 |
while ((uart_get_byte(&r)) < 0); |
219 |
|
220 |
if (r == (packet[0] ^ packet[1] ^ packet[2])) { |
221 |
|
222 |
if (packet[2] == TURNON) { |
223 |
state = ack; |
224 |
break;
|
225 |
} |
226 |
} |
227 |
|
228 |
packet[0] = 0x00; |
229 |
packet[1] = 0x00; |
230 |
packet[2] = 0x00; |
231 |
state = sd; |
232 |
break;
|
233 |
case ack:
|
234 |
uart_send_byte(DELIM); |
235 |
uart_send_byte(ADDR); |
236 |
uart_send_byte(SERVER); |
237 |
uart_send_byte('A');
|
238 |
uart_send_byte(ADDR ^ SERVER ^ 'A');
|
239 |
|
240 |
toggle_led(LED_RED, OFF); |
241 |
toggle_led(LED_YELLOW, ON); |
242 |
|
243 |
state = pwron; |
244 |
reset_timer(); |
245 |
break;
|
246 |
case pwron:
|
247 |
if (read_vac() == ON) {
|
248 |
ms_timer = 0;
|
249 |
state = idiot; |
250 |
break;
|
251 |
} |
252 |
|
253 |
if (read_button(BUT_BLACK)) {
|
254 |
toggle_led(LED_YELLOW, OFF); |
255 |
toggle_led(LED_GREEN, ON); |
256 |
toggle_relay(ON); |
257 |
|
258 |
reset_timer(); |
259 |
state = toolon; |
260 |
} else if ((read_button(BUT_RED)) || (min >= TWAIT)) { |
261 |
state = off; |
262 |
} |
263 |
break;
|
264 |
case idiot:
|
265 |
if (read_vac() == OFF) {
|
266 |
state = pwron; |
267 |
toggle_led(LED_RED, OFF); |
268 |
toggle_led(LED_YELLOW, ON); |
269 |
break;
|
270 |
} |
271 |
|
272 |
if (read_button(BUT_RED)) {
|
273 |
state = off; |
274 |
break;
|
275 |
} |
276 |
|
277 |
if(ms_timer >= 100) { |
278 |
toggle_led(LED_YELLOW, ON); |
279 |
toggle_led(LED_RED, OFF); |
280 |
|
281 |
if(ms_timer >= 200) { |
282 |
ms_timer = 0;
|
283 |
} |
284 |
} |
285 |
else {
|
286 |
toggle_led(LED_YELLOW, OFF); |
287 |
toggle_led(LED_RED, ON); |
288 |
} |
289 |
|
290 |
_delay_ms(2);
|
291 |
ms_timer++; |
292 |
break;
|
293 |
|
294 |
case toolon:
|
295 |
|
296 |
if ((read_button(BUT_RED)) && (read_vac() == OFF)) {
|
297 |
state = off; |
298 |
toggle_relay(OFF); |
299 |
} else if (min >= TWARN) { |
300 |
toggle_led(LED_GREEN, OFF); |
301 |
state = warn; |
302 |
} |
303 |
break;
|
304 |
|
305 |
case warn:
|
306 |
if(ms_timer >= 100) { |
307 |
toggle_led(LED_YELLOW, ON); |
308 |
|
309 |
if(ms_timer >= 200) { |
310 |
ms_timer = 0;
|
311 |
} |
312 |
} |
313 |
else {
|
314 |
toggle_led(LED_YELLOW, OFF); |
315 |
} |
316 |
|
317 |
if (read_button(BUT_RED) && read_vac() == OFF) {
|
318 |
toggle_relay(OFF); |
319 |
state = off; |
320 |
} else if (read_button(BUT_BLACK)) { |
321 |
toggle_led(LED_GREEN, ON); |
322 |
toggle_led(LED_YELLOW, OFF); |
323 |
reset_timer(); |
324 |
state = toolon; |
325 |
} else if ((min >= TMAX) && (read_vac() == OFF)) { |
326 |
toggle_relay(OFF); |
327 |
state = off; |
328 |
} |
329 |
|
330 |
_delay_ms(2);
|
331 |
ms_timer++; |
332 |
|
333 |
break;
|
334 |
case off:
|
335 |
toggle_led(LED_GREEN, OFF); |
336 |
toggle_led(LED_YELLOW, OFF); |
337 |
toggle_led(LED_RED, ON); |
338 |
state = sd; |
339 |
break;
|
340 |
default: state = sd;
|
341 |
} |
342 |
|
343 |
} |
344 |
|
345 |
return 0; |
346 |
} |