source: firmware/FSC/src/FSC_test.c@ 10669

Last change on this file since 10669 was 10667, checked in by neise, 14 years ago
File size: 12.0 KB
Line 
1//-----------------------------------------------------------------------------
2#include "typedefs.h"
3#include "application.h"
4#include "spi_master.h"
5#include "ad7719_adc.h"
6#include "atmega_adc.h"
7#include "usart.h"
8#include "macros.h"
9#include "muxer_fsc.h"
10#include "output.h"
11#include "parser.h"
12#include "interpol.h"
13#include "w5100_spi_interface.h"
14#include <avr/interrupt.h>
15#include <avr/wdt.h>
16#include <stdlib.h>
17//-----------------------------------------------------------------------------
18// definition of some functions:
19// these function are implemented in this file, this is not doog coding style.
20// sooner or later, they will be moved into more apropriate files.
21
22void parse(); //doesn't do anything at the moment
23
24// end of function definition:
25//-----------------------------------------------------------------------------
26
27
28// MAIN WORKFLOW GLOBAL VARIABLES
29 bool verbose;
30 bool heartbeat_enable;
31
32// USART global variables
33 U08 usart_rx_buffer[USART_RX_BUFFER_SIZE];
34 U08 usart_tx_buffer[USART_TX_BUFFER_SIZE];
35 U08 usart_rx_buffer_index = 0;
36 U08 usart_tx_buffer_index = 0;
37 U08 usart_last_char; // last received char
38
39// USART FLAGS
40 bool usart_tx_buffer_overflow = false; // true if usart_tx_buffer was full.
41
42// TIMER global variable
43 volatile U32 local_ms = 0;
44
45// AD7719 global variables
46 U32 ad7719_values[TEMP_CHANNELS];
47 U08 ad7719_enables[CHANNEL_BITMAP];
48 U08 ad7719_channels_ready[CHANNEL_BITMAP];
49 U08 ad7719_readings_since_last_muxing = 0;
50 U08 ad7719_current_channel = 0;
51 U32 ad7719_current_reading = 0;
52 bool ad7719_measured_all = false;
53
54// ATMEGA ADC global variables
55 U08 adc_values[V_CHANNELS + I_CHANNELS + H_CHANNELS]; // stores measured voltage in steps of 16mV
56 U08 adc_enables[V_BITMAP + I_BITMAP + H_BITMAP];
57 U08 adc_channels_ready[V_BITMAP + I_BITMAP + H_BITMAP];
58 U08 adc_readings_since_last_muxing = 0;
59 U08 adc_current_channel = 0;
60 U08 adc_current_reading = 0;
61 bool adc_measured_all = false;
62
63 bool once_told_you = true;
64 bool debug_mode = false;
65
66#ifndef ___MAIN_WORKFLOW_GLOBAL_VARS
67#define ___MAIN_WORKFLOW_GLOBAL_VARS
68 #define TEMP_CHANNELS 64
69 #define CHANNEL_BITMAP 8
70 #define AD7719_READINGS_UNTIL_SETTLED 1 // bei3:480ms
71 #define V_CHANNELS 40
72 #define I_CHANNELS 40
73 #define H_CHANNELS 4
74 #define V_BITMAP 5
75 #define I_BITMAP 5
76 #define H_BITMAP 1
77 #define ADC_READINGS_UNTIL_SETTLED 1
78
79#endif // ___MAIN_WORKFLOW_GLOBAL_VARS
80
81
82//-----------------------------------------------------------------------------
83// M A I N --- M A I N --- M A I N --- M A I N --- M A I N
84//-----------------------------------------------------------------------------
85int main(void)
86{
87
88 app_init(); // Setup: Watchdog and I/Os
89 usart_init();
90 spi_init(); // Initialize SPI interface as master
91
92// TIMER2 is used as local clock:
93// configure timer 2
94 TCCR2 = (1<<WGM21); // CTC Modus
95 TCCR2 |= (1<<CS21) | (1<<CS20); // Prescaler 64 --> counts up every 8us
96 OCR2 = 125-1; // --> output compare interrupt occurs every 125 x 8us = 1ms
97 // Compare Interrupt erlauben
98 TIMSK |= (1<<OCIE2);
99
100 // Enable interrupts
101 sei();
102
103 usart_write_str((pU08)"Start of test firmware (06.05.11) now:\n");
104 if (local_ms % 10000 == 0) {
105 usart_write_str((pU08)"time: ");
106 usart_write_U32(local_ms/1000,6);
107 usart_write_str((pU08)"sec.\n");
108 }
109
110 PORTB &= ~(1<<PB2); //#reset = LOW --> W5100 is in reset ...
111 _delay_ms(50); //reset
112
113 PORTB |= 1<<PB2; //#reset = HIGH --> W5100 is active
114 _delay_ms(5); // give it 5ms to accomodate.
115/*
116 PORTB |= (1<<PB4);
117 usart_write_str((pU08)"PB4 switched HIGH. Please check & hit ENTER.\n");
118 while(!enter_received){
119 if ( UCSRA & (1<<RXC) ) {
120 if (UDR == '\n')
121 enter_received = true;
122 }
123 }
124 enter_received = false;
125*/
126
127 usart_write_str((pU08)"W5300 init begins at:");
128 usart_write_U32(local_ms,10);
129 usart_write_str((pU08)"ms.\n");
130
131 w5100_init();
132
133 usart_write_str((pU08)"W5300 init finished at:");
134 usart_write_U32(local_ms,10);
135 usart_write_str((pU08)"ms.\n");
136
137 usart_write_str((pU08)"Wait for PC to connect to FSC...");
138 while (!w5100_is_established()) {
139 usart_write_str((pU08)"Socket status is:");
140 usart_write_U08_hex(w5100_sock_status());
141 usart_write_char('\n');
142 _delay_ms(333);
143 }
144
145 usart_write_str((pU08)"connection to PC established at:");
146 usart_write_U32(local_ms/1000,6);
147 usart_write_str((pU08)"sec.\n");
148
149 usart_write_str((pU08)"Ready to investigate, what's happening next? - HIT ENTER - \n");
150 while(!usart_rx_ready){
151 _delay_ms(10);
152 }
153 usart_rx_ready = false;
154
155
156 usart_write_str((pU08)"S0_TX_FSR\t|S0_TX_RD\t|S0_TX_WR\t|S0_RX_RSR\t|S0_RX_RD\t| 0x0426 | 0x0427 |\n");
157 while(!usart_rx_ready){
158
159 usart_write_U16_hex(get_S0_TX_FSR()); usart_write_char('\t'); usart_write_char('|');
160 usart_write_U16_hex(get_S0_TX_RD()); usart_write_char('\t'); usart_write_char('|');
161 usart_write_U16_hex(get_S0_TX_WR()); usart_write_char('\t'); usart_write_char('|');
162 usart_write_U16_hex(get_S0_RX_RSR()); usart_write_char('\t'); usart_write_char('|');
163 usart_write_U16_hex(get_S0_RX_RD()); usart_write_char('\t'); usart_write_char('|');
164 usart_write_U08_hex( w5100_read(0x0426) ); usart_write_char('\t'); usart_write_char('|');
165 usart_write_U08_hex( w5100_read(0x0427) ); usart_write_char('\t'); usart_write_char('|');
166
167 usart_write_char('\n');
168
169 _delay_ms(400);
170 _delay_ms(400);
171 }
172 usart_rx_ready = false;
173
174 U16 received_bytes;
175 U08 really_downloaded_bytes;
176 while(!usart_rx_ready){
177 received_bytes = get_S0_RX_RSR();
178
179 usart_write_U16_hex(get_S0_TX_FSR()); usart_write_char('\t'); usart_write_char('|');
180 usart_write_U16_hex(get_S0_TX_RD()); usart_write_char('\t'); usart_write_char('|');
181 usart_write_U16_hex(get_S0_TX_WR()); usart_write_char('\t'); usart_write_char('|');
182 usart_write_U16_hex(get_S0_RX_RSR()); usart_write_char('\t'); usart_write_char('|');
183 usart_write_U16_hex(get_S0_RX_RD()); usart_write_char('\t'); usart_write_char('|');
184
185
186 if (get_S0_RX_RSR() != 0) { // we have something to read
187 usart_write_str((pU08)"\nReading ");
188 usart_write_U16(get_S0_RX_RSR(), 6);
189 usart_write_str((pU08)" b from W5100\n");
190
191 while (received_bytes != 0) {
192 really_downloaded_bytes = w5100_get_RX(16, true);
193 usart_write_char('!');
194 usart_write_U08(really_downloaded_bytes,4);
195 usart_write_char('\n');
196 for (U08 i=0; i<really_downloaded_bytes; i++){
197 usart_write_U08_hex(eth_read_buffer[i]);
198 usart_write_char(' ');
199 }
200 received_bytes -= really_downloaded_bytes;
201 }
202 }
203 usart_write_char('\n');
204
205 _delay_ms(400);
206 _delay_ms(400);
207 _delay_ms(400);
208 _delay_ms(400);
209 }
210 usart_rx_ready = false;
211
212 bool quit = false;
213 while (!quit) {
214 usart_write_str((pU08)"Enter the string to send to PC or \"XXX\" in order to quit\n");
215 while(!usart_rx_ready){
216 _delay_ms(100);
217 }
218 usart_rx_ready = false;
219
220 if ( (usart_rx_buffer[0]=='X') && (usart_rx_buffer[1]=='X') && (usart_rx_buffer[2]=='X') )
221 quit = true;
222 else {
223 // copy string to W5100 TX buffer and issue 'SEND' command.
224 for (U08 i =0; i<usart_received_chars; i++){
225 eth_write_buffer[i]=usart_rx_buffer[i];
226 }
227
228 w5100_set_TX(usart_received_chars);
229
230 }
231
232
233 }
234
235} // end of main()
236
237/*
238//MAIN LOOP
239while (1)
240{
241 if (heartbeat_enable) PORTB ^= (1<<PB3); // toggle Out2_spare --> heartbeat
242//----------------------------------------------------------------------------
243 //IF we need to send away one byte, and ready to send
244
245 if ( (usart_tx_buffer_index > 0) && (UCSRA & (1<<UDRE)) ) {
246 UDR = usart_tx_buffer[0];
247 // THis is shit
248 for (U08 i=0 ; i < USART_TX_BUFFER_SIZE; ++i) {
249 usart_tx_buffer[i] = usart_tx_buffer[i+1];
250 }
251 usart_tx_buffer_index--;
252 }
253//----------------------------------------------------------------------------
254
255 //IF we just received one byte, and there is enough space in the RX_buffer
256 if ( (UCSRA & (1<<RXC)) && (usart_rx_buffer_index < USART_RX_BUFFER_SIZE) ){
257 usart_last_char = UDR;
258 if (usart_last_char == '\n'){ // if EOL was received
259 usart_rx_ready = true;
260 }else {
261 usart_rx_buffer[usart_rx_buffer_index] = usart_last_char;
262 usart_rx_buffer_index++;
263 }
264 // here is still something strange .... better send an enter automatically
265 } else if (UCSRA & (1<<RXC)) { // if there is no scace in the buffer; read anyway.
266 usart_last_char = UDR;
267 usart_rx_buffer_index =0;
268 }
269//----------------------------------------------------------------------------
270
271 //IF USART DOR bit is set, PC is sending data to fast!!!
272 if ( UCSRA & (1<<DOR) ){
273 // flush TX_buffer and write warning message in
274 // maybe even switch off every measurement. ?
275 }
276//----------------------------------------------------------------------------
277
278 //IF TX_BUFFER was overrun.
279 if (usart_tx_buffer_overflow) {
280 // flash TX_buffer and write warning message in
281 // maybe even switch off every measurement. ?
282 //
283 // this should only happen, in verbose mode and with low baudrates.
284 }
285//----------------------------------------------------------------------------
286
287 //IF one command was received.
288 // -It is not allowed to send more than one command between two '\n'
289 if (usart_rx_ready){
290 parse();
291 usart_rx_buffer_index = 0;
292 usart_rx_ready = false;
293 }
294//----------------------------------------------------------------------------
295
296 //IF ATmega internal ADC did finish a conversion --every 200us
297 if ( (ADCSRA & (1<<ADIF)) && !adc_measured_all) {
298 adc_current_reading = ADCH;
299 if (adc_readings_since_last_muxing == ADC_READINGS_UNTIL_SETTLED) {
300 adc_values[adc_current_channel] = adc_current_reading;
301 adc_readings_since_last_muxing=0;
302 // note that this channel is ready, now and
303 adc_output(adc_current_channel, adc_current_reading);
304 // proceed to the next enabled channel.
305 adc_channels_ready[adc_current_channel/8] |= (1<<(adc_current_channel%8));
306 adc_current_channel = increase_adc (adc_current_channel);
307 Set_V_Muxer(adc_current_channel);
308 } else { // the ADC did not settle yet, we discard the reading
309 ++adc_readings_since_last_muxing;
310 // current reading is not used for anything else
311 }
312 }
313//----------------------------------------------------------------------------
314
315 //IF AD7719 ADC just finished a conversion -- every 60ms
316
317 if (AD7719_IS_READY()) {
318 ad7719_current_reading = read_adc(); // --takes at 4MHz SCLK speed about 6us
319 // AD7719 is only read out if settled. saves time.
320 if (ad7719_readings_since_last_muxing == AD7719_READINGS_UNTIL_SETTLED) {
321 ad7719_values[ad7719_current_channel] = ad7719_current_reading;
322 ad7719_readings_since_last_muxing=0;
323 // now prepare the data to be send away via USART.
324 //ad7719_output(ad7719_current_channel, ad7719_current_reading);
325 // note that this channel is ready, now and
326 // proceed to the next enabled channel.
327 ad7719_channels_ready[ad7719_current_channel/8] |= (1<<(ad7719_current_channel%8));
328 ad7719_current_channel = increase_ad7719 (ad7719_current_channel);
329 Set_T_Muxer(ad7719_current_channel);
330 } else { // the AD7719 did not settle yet, we discard the reading
331 ++ad7719_readings_since_last_muxing;
332
333 // current reading is not used for anything else
334 }
335 }
336//----------------------------------------------------------------------------
337 //IF one of the ADC measured all channels, we wanted to know.
338 check_if_measured_all();
339
340 if (ad7719_measured_all && adc_measured_all)
341 adc_output_all();
342
343//----------------------------------------------------------------------------
344
345// if (verbose == true)
346 // talk() was just defined so the
347 // code is not at this place ... look down.
348// talk();
349
350
351} // end of MAIN LOOP
352//-----------------------------------------------------------------------------
353// E N D E N D E N D E N D E N D E N D E N D
354//-----------------------------------------------------------------------------
355
356*/
357
358
359
360ISR (TIMER2_COMP_vect)
361{
362 ++local_ms;
363}
364
365
366
367
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