source: firmware/FSC/src/FSC_old.c@ 16318

Last change on this file since 16318 was 10667, checked in by neise, 14 years ago
File size: 22.8 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 "interpol.h"
10#include "w5100_spi_interface.h"
11#include <avr/interrupt.h>
12#include <avr/wdt.h>
13#include <stdlib.h>
14//-----------------------------------------------------------------------------
15// definition of some functions:
16// these function are implemented in this file, this is not doog coding style.
17// sooner or later, they will be moved into more apropriate files.
18U08 increase_adc (U08 channel);
19U08 increase_ad7719 (U08 channel);
20void Set_V_Muxer (U08 channel);
21void Set_T_Muxer(U08 channel);
22void talk(void);// never used up to now.
23void ad7719_output(U08 channel, U32 data);
24void adc_output(U08 channel, U08 data);
25void adc_output_all();
26void parse(); //doesn't do anything at the moment
27void check_if_measured_all() ;
28// end of function definition:
29//-----------------------------------------------------------------------------
30
31// MAIN WORKFLOW GLOBAL VARIABLES
32 bool verbose;
33 bool heartbeat_enable;
34
35// USART global variables
36 U08 usart_rx_buffer[USART_RX_BUFFER_SIZE];
37 U08 usart_tx_buffer[USART_TX_BUFFER_SIZE];
38 U08 usart_rx_buffer_index = 0;
39 U08 usart_tx_buffer_index = 0;
40 U08 usart_last_char; // last received char
41
42// USART FLAGS
43 bool usart_tx_buffer_overflow = false; // true if usart_tx_buffer was full.
44 bool usart_rx_ready = false; // EOL was received, parser needs to be called
45
46// TIMER global variable
47 volatile U32 local_ms = 0;
48
49// AD7719 global variables
50 #define TEMP_CHANNELS 64
51 #define CHANNEL_BITMAP 8
52 #define AD7719_READINGS_UNTIL_SETTLED 1 // bei3:480ms
53 U32 ad7719_values[TEMP_CHANNELS];
54 U08 ad7719_enables[CHANNEL_BITMAP];
55 U08 ad7719_channels_ready[CHANNEL_BITMAP];
56 U08 ad7719_readings_since_last_muxing = 0;
57 U08 ad7719_current_channel = 0;
58 U32 ad7719_current_reading = 0;
59 bool ad7719_measured_all = false;
60
61// ATMEGA ADC global variables
62 #define V_CHANNELS 40
63 #define I_CHANNELS 40
64 #define H_CHANNELS 4
65 #define V_BITMAP 5
66 #define I_BITMAP 5
67 #define H_BITMAP 1
68 #define ADC_READINGS_UNTIL_SETTLED 1
69 U32 adc_values[V_CHANNELS + I_CHANNELS + H_CHANNELS]; // stores measured voltage in steps of 16mV
70 U08 adc_enables[V_BITMAP + I_BITMAP + H_BITMAP];
71 U08 adc_channels_ready[V_BITMAP + I_BITMAP + H_BITMAP];
72 U08 adc_readings_since_last_muxing = 0;
73 U08 adc_current_channel = 0;
74 U08 adc_current_reading = 0;
75 bool adc_measured_all = false;
76
77//-----------------------------------------------------------------------------
78// M A I N --- M A I N --- M A I N --- M A I N --- M A I N
79//-----------------------------------------------------------------------------
80int main(void)
81{
82 app_init(); // Setup: Watchdog and I/Os
83 usart_init(); // Initialize serial interface
84 spi_init(); // Initialize SPI interface as master
85 ad7719_init(); // Initialize AD7719 ADC as SPI slave
86 atmega_adc_init();
87
88// TIMER2 is used as local clock:
89// configure timer 2
90 TCCR2 = (1<<WGM21); // CTC Modus
91 TCCR2 |= (1<<CS21) | (1<<CS20); // Prescaler 64 --> counts up every 8us
92 OCR2 = 125-1; // --> output compare interrupt occurs every 125 x 8us = 1ms
93 // Compare Interrupt erlauben
94 TIMSK |= (1<<OCIE2);
95
96 // Enable interrupts
97 sei();
98
99for ( U08 i=0; i<CHANNEL_BITMAP; ++i ) {
100 ad7719_enables[i]=0xFF;
101 ad7719_channels_ready[i]=0;
102 }
103for ( U08 i=0; i<V_BITMAP + I_BITMAP + H_BITMAP; ++i ) {
104 adc_enables[i]=0xFF;
105 adc_channels_ready[i]=0;
106}
107 static U08 welcome[]="\n\nwelcome to FACT FSC commandline interface v0.1\nready?";
108 usart_write_str(welcome);
109
110
111//MAIN LOOP
112while (1)
113{
114 if (heartbeat_enable) PORTB ^= (1<<PB3); // toggle Out2_spare --> heartbeat
115//----------------------------------------------------------------------------
116 //IF we need to send away one byte, and ready to send
117
118 if ( (usart_tx_buffer_index > 0) && (UCSRA & (1<<UDRE)) ) {
119 UDR = usart_tx_buffer[0];
120 // THis is shit
121 for (U08 i=0 ; i < USART_TX_BUFFER_SIZE; ++i) {
122 usart_tx_buffer[i] = usart_tx_buffer[i+1];
123 }
124 usart_tx_buffer_index--;
125 }
126//----------------------------------------------------------------------------
127
128 //IF we just received one byte, and there is enough space in the RX_buffer
129 if ( (UCSRA & (1<<RXC)) && (usart_rx_buffer_index < USART_RX_BUFFER_SIZE) ){
130 usart_last_char = UDR;
131 if (usart_last_char == '\n'){ // if EOL was received
132 usart_rx_ready = true;
133 }else {
134 usart_rx_buffer[usart_rx_buffer_index] = usart_last_char;
135 usart_rx_buffer_index++;
136 }
137 // here is still something strange .... better send an enter automatically
138 } else if (UCSRA & (1<<RXC)) { // if there is no scace in the buffer; read anyway.
139 usart_last_char = UDR;
140 usart_rx_buffer_index =0;
141 }
142//----------------------------------------------------------------------------
143
144 //IF USART DOR bit is set, PC is sending data to fast!!!
145 if ( UCSRA & (1<<DOR) ){
146 // flush TX_buffer and write warning message in
147 // maybe even switch off every measurement. ?
148 }
149//----------------------------------------------------------------------------
150
151 //IF TX_BUFFER was overrun.
152 if (usart_tx_buffer_overflow) {
153 // flash TX_buffer and write warning message in
154 // maybe even switch off every measurement. ?
155 //
156 // this should only happen, in verbose mode and with low baudrates.
157 }
158//----------------------------------------------------------------------------
159
160 //IF one command was received.
161 // -It is not allowed to send more than one command between two '\n'
162 if (usart_rx_ready){
163 parse();
164 usart_rx_buffer_index = 0;
165 usart_rx_ready = false;
166 }
167//----------------------------------------------------------------------------
168
169 //IF ATmega internal ADC did finish a conversion --every 200us
170 if ( (ADCSRA & (1<<ADIF)) && !adc_measured_all) {
171 adc_current_reading = ADCH;
172 if (adc_readings_since_last_muxing == ADC_READINGS_UNTIL_SETTLED) {
173 adc_values[adc_current_channel] = adc_current_reading;
174 adc_readings_since_last_muxing=0;
175 // note that this channel is ready, now and
176 adc_output(adc_current_channel, adc_current_reading);
177 // proceed to the next enabled channel.
178 adc_channels_ready[adc_current_channel/8] |= (1<<(adc_current_channel%8));
179 adc_current_channel = increase_adc (adc_current_channel);
180 Set_V_Muxer(adc_current_channel);
181 } else { // the ADC did not settle yet, we discard the reading
182 ++adc_readings_since_last_muxing;
183 // current reading is not used for anything else
184 }
185 }
186//----------------------------------------------------------------------------
187
188 //IF AD7719 ADC just finished a conversion -- every 60ms
189
190 if (AD7719_IS_READY()) {
191 ad7719_current_reading = read_adc(); // --takes at 4MHz SCLK speed about 6us
192 // AD7719 is only read out if settled. saves time.
193 if (ad7719_readings_since_last_muxing == AD7719_READINGS_UNTIL_SETTLED) {
194 ad7719_values[ad7719_current_channel] = ad7719_current_reading;
195 ad7719_readings_since_last_muxing=0;
196 // now prepare the data to be send away via USART.
197 //ad7719_output(ad7719_current_channel, ad7719_current_reading);
198 // note that this channel is ready, now and
199 // proceed to the next enabled channel.
200 ad7719_channels_ready[ad7719_current_channel/8] |= (1<<(ad7719_current_channel%8));
201 ad7719_current_channel = increase_ad7719 (ad7719_current_channel);
202 Set_T_Muxer(ad7719_current_channel);
203 } else { // the AD7719 did not settle yet, we discard the reading
204 ++ad7719_readings_since_last_muxing;
205
206 // current reading is not used for anything else
207 }
208 }
209//----------------------------------------------------------------------------
210 //IF one of the ADC measured all channels, we wanted to know.
211 check_if_measured_all();
212
213 if (ad7719_measured_all && adc_measured_all)
214 adc_output_all();
215
216//----------------------------------------------------------------------------
217/*
218 if (verbose == true)
219 // talk() was just defined so the
220 // code is not at this place ... look down.
221 talk();
222*/
223
224} // end of MAIN LOOP
225
226//-----------------------------------------------------------------------------
227// E N D E N D E N D E N D E N D E N D E N D
228//-----------------------------------------------------------------------------
229
230
231
232float resistance;
233
234U08 SA_mux_val = 0x00;
235U08 SB_mux_val = 0x00;
236
237//U08 counter = 0;
238U08 Res_or_Volt = 0x00;
239
240
241while (TRUE)
242 {
243
244
245 ++Res_or_Volt;
246 if (Res_or_Volt <= 64){
247
248
249 // if USART data arrives. i.e. data via USB
250 // the usart_rx_ready flag is set TRUE
251 // now process the incoming data which is stored in
252 // U08 usart_rx_buffer[USART_RX_BUFFER_SIZE]
253 // and tell the USART interface, it may receive new data
254 // by setting the usart_rx_ready flag FALSE again
255 ++SA_mux_val;
256 if (Res_or_Volt == 1) SB_mux_val = 16;
257 else if (SA_mux_val == 64) SA_mux_val = 32;
258 else if (SA_mux_val == 16) SA_mux_val = 48;
259 else if (SA_mux_val == 32) SA_mux_val = 0;
260 PORTA = (SA_mux_val & 0x3F);
261
262// usart_write_str((pU08)"SA:");
263 usart_write_U08(SA_mux_val,2);
264 usart_write_str((pU08)" Sensor:");
265 usart_write_U08((SA_mux_val % 8)+1,2);
266 usart_write_str((pU08)" an Temperatur_");
267 switch (SA_mux_val / 8)
268 {
269 case 0: usart_write_str((pU08)"C");
270 break;
271 case 1: usart_write_str((pU08)"D");
272 break;
273 case 2: usart_write_str((pU08)"A");
274 break;
275 case 3: usart_write_str((pU08)"B");
276 break;
277 case 4: usart_write_str((pU08)"G");
278 break;
279 case 5: usart_write_str((pU08)"H");
280 break;
281 case 6: usart_write_str((pU08)"E");
282 break;
283 case 7: usart_write_str((pU08)"F");
284 break;
285 default: usart_write_str((pU08)"alarm!");
286 break;
287 }
288// usart_write_str((pU08)"\n");
289 usart_write_str((pU08)" ");
290
291
292 startconv(0);
293
294
295 while (!AD7719_IS_READY())
296 {
297 // just wait until ADC is redy -- really bad code here!
298 }
299
300 resistance = getresistance();
301 //Start a new A/D Conversion
302 //temp = readandsendtemp();
303 //adcword = getadc();
304
305 //temperature = gettemp();
306 usart_write_str((pU08)"R:");
307 usart_write_float(resistance,3,4);
308 usart_write_str((pU08)"kOhm ");
309
310 //_delay_ms(200);
311
312 startconv(0);
313
314 while (!AD7719_IS_READY())
315 {
316 // just wait until ADC is redy -- really bad code here!
317 }
318 //Start a new A/D Conversion
319 //temp = readandsendtemp();
320 //adcword = getadc();
321 resistance = getresistance();
322 //temperature = gettemp();
323 usart_write_str((pU08)"R:");
324 usart_write_float(resistance,3,4);
325 usart_write_str((pU08)"kOhm ");
326
327//usart_write_str((pU08)"\n");
328switch (SA_mux_val)
329 {
330 case 7: usart_write_str((pU08)"\n\n");
331 break;
332 case 15: usart_write_str((pU08)"\n\n");
333 break;
334 case 23: usart_write_str((pU08)"\n\n");
335 break;
336 case 31: usart_write_str((pU08)"\n\n");
337 break;
338 case 39: usart_write_str((pU08)"\n\n");
339 break;
340 case 47: usart_write_str((pU08)"\n\n");
341 break;
342 case 55: usart_write_str((pU08)"\n\n");
343 break;
344 case 63: usart_write_str((pU08)"\n\n");
345 break;
346 default: usart_write_str((pU08)"\n");
347 break;
348 }
349SB_mux_val = 0;
350}
351else if (Res_or_Volt == 148) Res_or_Volt = 0;
352else {
353
354
355 ++SB_mux_val;
356 if (SB_mux_val == 84) SB_mux_val = 0;
357 else if (SB_mux_val == 74) SB_mux_val = 82;
358 else if (SB_mux_val == 82) SB_mux_val = 72;
359 else if (SB_mux_val == 72) SB_mux_val = 74;
360 else if (SB_mux_val == 48) SB_mux_val = 64;
361 else if (SB_mux_val == 64) SB_mux_val = 32;
362 else if (SB_mux_val == 32) SB_mux_val = 48;
363 PORTC = (SB_mux_val & 0x7F);
364
365
366
367
368usart_write_str((pU08)"8bit-ADC: ");
369
370if (SB_mux_val < 64)
371{
372 switch (SB_mux_val / 16)
373 {
374 case 0: usart_write_str((pU08)"voltage_A: ");
375 break;
376 case 1: usart_write_str((pU08)"voltage_B: ");
377 break;
378 case 2: usart_write_str((pU08)"voltage_D: ");
379 break;
380 case 3: usart_write_str((pU08)"voltage_C: ");
381 break;
382 }
383
384 if (SB_mux_val % 2 == 0) {
385 usart_write_str((pU08)"U");
386 usart_write_U08( (SB_mux_val%16)/2 , 1 );
387 } else {
388 usart_write_str((pU08)"I");
389 usart_write_U08( ((SB_mux_val%16)-1)/2 , 1 );
390 }
391
392
393} else {
394
395
396 if (SB_mux_val < 72) {
397 usart_write_str((pU08)"voltage_E: ");
398 if (SB_mux_val % 2 == 0) {
399 usart_write_str((pU08)"U");
400 usart_write_U08( (SB_mux_val%8)/2 , 1 );
401 } else {
402 usart_write_str((pU08)"I");
403 usart_write_U08( ((SB_mux_val%8)-1)/2 , 1 );
404 }
405
406 }
407else if (SB_mux_val == 72) usart_write_str((pU08)"humidity_A: H0");
408else if (SB_mux_val == 73) usart_write_str((pU08)"humidity_A: H1");
409
410else if (SB_mux_val < 82) {
411 usart_write_str((pU08)"voltage_F: ");
412 if (SB_mux_val % 2 == 0) {
413 usart_write_str((pU08)"U");
414 usart_write_U08( ((SB_mux_val-2)%8)/2 , 1 );
415 } else {
416 usart_write_str((pU08)"I");
417 usart_write_U08( (((SB_mux_val-2)%8)-1)/2 , 1 );
418 }
419
420 }
421else if (SB_mux_val == 82) usart_write_str((pU08)"humidity_B: H0");
422else if (SB_mux_val == 83) usart_write_str((pU08)"humidity_B: H1");
423}
424
425for (U08 counter = 0; counter < 1; ++counter) {
426 while (ADCSRA & (1<<ADSC) ); // wait until internal ADC is ready
427 float voltage;
428 voltage = ( (float)ADCH ) / 256 * 4.096;
429 usart_write_str((pU08)" ");
430 usart_write_float(voltage,3,4);
431
432
433}
434//usart_write_str((pU08)"\n");
435
436switch (SB_mux_val)
437 {
438 case 15: usart_write_str((pU08)"\n\n");
439 break;
440 case 31: usart_write_str((pU08)"\n\n");
441 break;
442 case 47: usart_write_str((pU08)"\n\n");
443 break;
444 case 63: usart_write_str((pU08)"\n\n");
445 break;
446 case 71: usart_write_str((pU08)"\n\n");
447 break;
448 case 73: usart_write_str((pU08)"\n\n");
449 break;
450 case 81: usart_write_str((pU08)"\n\n");
451 break;
452 case 83: usart_write_str((pU08)"\n\n");
453 break;
454 default: usart_write_str((pU08)"\n");
455 break;
456 }
457
458SA_mux_val = 15;
459}
460 /*
461 if ( usart_rx_ready == TRUE )
462 {
463 //understand what it means and react
464
465 switch (usart_rx_buffer[0])
466 {
467
468 case 'h':
469 {
470 // toggle the heartbeat mode on or off.
471 heartbeat_enable = !heartbeat_enable;
472 break;
473 }
474 case 'a':
475 {
476 // conduct adc - AD7719 SPI interface test
477
478 break;
479 }
480 case 'e':
481 {
482 // conduct ethernet module SPI interface test
483 strtol((char*) usart_rx_buffer+1, NULL, 0);
484 break;
485 }
486
487 default:
488 {
489 usart_write_str((pU08)"? you wrote: ");
490 usart_write_str((pU08)usart_rx_buffer);
491 usart_write_str((pU08)"\n");
492 break;
493 }
494 }
495
496 heartbeat_enable = !heartbeat_enable;
497 usart_rx_ready = FALSE;
498 }
499*/
500// das ist ein paar schritte zu früh.
501// erstmal müssen die interfaces getestet werden.
502/*
503
504 for (U08 i = 0; i<16; i++)
505 {
506
507 if((~PIND) & 0x08) // PD4 is #ADC_RDY input. Inverted logic! if PD4=0 this evaluates to true
508 {
509 PORTA = (PORTA & 0xF0) | ((i) & 0x0F); // switch muxer
510 startconv(); //Start a new A/D Conversion
511 //temp = readandsendtemp();
512 //adcword = getadc();
513 //resistance = getresistance();
514 temperature = gettemp();
515 usart_write_float(temperature,2,4);
516 usart_write_str((pU08)"\t");
517
518 } // end of if adc ready
519 else
520 {
521 i--;
522 }
523 } // end of for loop over 16 channels
524 usart_write_crlf();
525
526*/
527
528 } // end of infinite while loop
529} // end of main()
530
531
532ISR (TIMER2_COMP_vect)
533{
534 ++local_ms;
535}
536
537
538U08 increase_adc (U08 channel){
539bool valid_ch_found = false;
540 while (!valid_ch_found){
541
542 // just increase 'channel' or turnover to zero.
543 ++channel;
544 if (channel == V_CHANNELS + I_CHANNELS + H_CHANNELS)
545 channel = 0;
546
547 // check if this channel is enabled in the bitmap
548 if (adc_enables[channel/8] & (1<<channel%8))
549 valid_ch_found = true;
550 } // end of while loop
551 return channel;
552} // end if increase_adc;
553
554U08 increase_ad7719 (U08 channel){
555bool valid_ch_found = false;
556 while (!valid_ch_found){
557
558 // just increase 'channel' or turnover to zero.
559 ++channel;
560 if (channel == TEMP_CHANNELS)
561 channel = 0;
562
563 // check if this channel is enabled in the bitmap
564 if (ad7719_enables[channel/8] & (1<<channel%8))
565 valid_ch_found = true;
566 } // end of while loop
567 return channel;
568} // end if increase_adc;
569
570
571// Sets voltage Muxer to current channel
572// this is a Muxing, and therefor the adc might need some time to settle.
573// Since there are:
574// - 40 voltage monitor channels
575// - 40 current monitor channels
576// - 4 humidity monitor channels
577// the muxer is set as follows.
578// channel 00..39 --> looking at the voltage channels
579// channel 40..79 --> looking at the current channels
580// channel 80..83 --> looking at the humidities
581void Set_V_Muxer (U08 channel){
582U08 SB = 0;
583 // voltages
584 if (channel < 40) {
585 if (channel < 36)
586 SB = channel*2;
587 else
588 SB = (channel+1)*2;
589 }
590 // currents
591 else if (channel < 80) {
592 channel -= 40;
593 if (channel < 36)
594 SB = channel*2+1;
595 else
596 SB = (channel+1)*2+1;
597 }
598 // humidities
599 else if (channel < 84) {
600 channel -= 80;
601 switch (channel) {
602 case 0:
603 SB = 0x48; //0100.1000
604 break;
605 case 1:
606 SB = 0x49; //0100.1001
607 break;
608 case 2:
609 SB = 0x58; //0101.0010
610 break;
611 case 3:
612 SB = 0x58; //0101.0011
613 break;
614 } // end of switch-case
615 } // end of if (channel < some_number)
616
617 PORTC = (PORTC & 0x80) | (0x7F & SB); // Here the muxer is switched.
618}
619
620void Set_T_Muxer(U08 channel) {
621U08 SA = 0x00;
622
623 switch (channel/16) {
624 case 0:
625 SA |= 1<<4; // 0001.0000
626 break;
627 case 1:
628 break; // 0000.0000
629 case 2:
630 SA |= (1<<4)|(1<<5); // 0011.0000
631 break;
632 case 3:
633 SA |= 1<<5; // 0010.0000
634 break;
635 }
636
637 SA = SA | (channel%16);
638
639 PORTA = (PORTA & 0xC0) | (0x3F & SA); // Here the muxer is switched.
640}
641
642void talk(void){
643
644/*
645// makes no sense to declare the 'new_measurement' vars here
646// but maybe the whole function will be deleted, anyway ...
647// I'm thinking about it.
648bool ad7719_new_measurement;
649bool atmega_adc_new_measurement;
650 if (verbose == true) {
651 // somebody wants to read every new measured value, even if it is trash!
652 // do not actually send away data !
653 // just prepare the data to be send away.
654 if ( ad7719_new_measurement == true ) {
655 add_str_to_output_stream("ad7719: reading:");
656 add_dec_to_output_stream(reading_since_last_muxer_switch,1);
657 add_str_to_output_stream(" temperature channel:");
658 add_dec_to_output_stream(current_temperature_channel,2);
659 add_str_to_output_stream(" = ");
660 add_float_to_output_stream(current_ad7719_value,4,3);
661 add_str_to_output_stream("\n");
662 }
663 if (atmega_adc_new_measurement == true) {
664 add_str_to_output_stream("atmega_adc: reading:");
665 add_dec_to_output_stream(reading_since_last_muxer_switch,1);
666 add_str_to_output_stream(" voltage channel:");
667 add_dec_to_output_stream(current_voltage_channel,2);
668 add_str_to_output_stream(" = ");
669 add_float_to_output_stream(current_atmega_adc_value,4,3);
670 add_str_to_output_stream("\n");
671 }
672 } // end of: if verbose
673*/
674} // end of talk()
675
676// this function generates some output.
677void ad7719_output(U08 channel, U32 data) {
678 usart_write_str((pU08)"R:"); //R for resistance
679 usart_write_char('A'+channel/8); // Letters A,B,C,D,E,F,G,H
680 usart_write_char(' ');
681 usart_write_U08(channel%8+1,1); // Numbers 1...8
682 usart_write_char(':');
683 usart_write_U32_hex(data); //data
684 usart_write_char('\n');
685}
686
687void adc_output(U08 channel, U08 data) {
688
689 if (channel < 40)
690 usart_write_str((pU08)"V:");
691 else if (channel < 80)
692 usart_write_str((pU08)"I:");
693 else if (channel < 84)
694 usart_write_str((pU08)"H:");
695
696 switch (channel/16) {
697 case 0:
698 usart_write_char('A');
699 break;
700 case 1:
701 usart_write_char('B');
702 break;
703 case 2:
704 usart_write_char('D');
705 break;
706 case 3:
707 usart_write_char('C');
708 break;
709 case 4:
710 usart_write_char('E');
711 usart_write_char('E');
712 break;
713
714 usart_write_char(' ');
715 usart_write_U08((channel/2)%8+1,1); // Numbers 1...8
716 usart_write_char(':');
717 usart_write_U16((U16)data*16,5); //data
718 usart_write_char('\n');
719
720
721}
722
723
724void adc_output_all() {
725 // output all values, which are enabled
726 for (U08 i=0 ; i<40; ++i){
727 if (i==0) usart_write_str((pU08)"voltages:(in units of 16mV)\n");
728 if (i==40) usart_write_str((pU08)"currents:\n");
729 if (i==80) usart_write_str((pU08)"humidities:\n");
730 if (adc_enables[i/8] & i%8){
731 usart_write_U08(adc_values[i],3);
732 usart_write_char('\t');
733 }
734 if (i%8==7) usart_write_char('\n');
735 if (i==83) usart_write_char('\n');
736 }
737}
738
739
740// this method parses the data,
741// which came in via USART
742// later it might as well parse the data from ethernet.
743void parse() {
744U08 command = usart_rx_buffer[0];
745// look at first byte
746// I hope, I can manage to use one byte commands
747 usart_rx_buffer[USART_RX_BUFFER_SIZE-1] = 0;
748 usart_write_str((pU08)"got:");
749 usart_write_str(usart_rx_buffer);
750
751
752
753 switch (command) {
754 case 'E': // AD7719 enable bitmaps may be set
755 for ( U08 i=0; i<CHANNEL_BITMAP; ++i ) {
756 ad7719_enables[i]=usart_rx_buffer[i+1];
757 ad7719_channels_ready[i]=0;
758 }
759 break;
760 case 'e': // ATmega internal ADC enable bitmaps may be set
761 for ( U08 i=0; i<V_BITMAP + I_BITMAP + H_BITMAP; ++i ) {
762 adc_enables[i]=usart_rx_buffer[i+1];
763 adc_channels_ready[i]=0;
764 }
765 break;
766 case 'h':
767 usart_write_str((pU08)"\nheartbeat ");
768 heartbeat_enable = true;
769 if (usart_rx_buffer[1] == '0'){
770 heartbeat_enable = false;
771 usart_write_str((pU08)"off\n");
772 } else {
773 usart_write_str((pU08)"on\n");
774 }
775 break;
776 case 'G': // GET the Temperature channels, which are enabled
777 for ( U08 i=0; i<CHANNEL_BITMAP; ++i ) {
778 ad7719_channels_ready[i]=0;
779 }
780 break;
781 case 'g': // GET the voltage/current/humidity channels, which are enabled
782 for ( U08 i=0; i<V_BITMAP + I_BITMAP + H_BITMAP; ++i ) {
783 adc_channels_ready[i]=0;
784 }
785 break;
786 case 's':
787 usart_write_char('\n');
788 for (U08 i=0; i< CHANNEL_BITMAP;++i) {
789 usart_write_U08_bin(ad7719_enables[i]);
790 usart_write_char('\t');
791 }
792 usart_write_char('\n');
793 for (U08 i=0; i< CHANNEL_BITMAP;++i){
794 usart_write_U08_bin(ad7719_channels_ready[i]);
795 usart_write_char('\t');
796 }
797 usart_write_char('\n');
798 usart_write_U32_hex(local_ms);
799 break;
800 }
801 usart_write_str((pU08)"\nready?");
802 for (U08 i=0; i<USART_RX_BUFFER_SIZE; ++i)
803 usart_rx_buffer[i] = 0;
804}
805
806void check_if_measured_all() {
807 adc_measured_all = true;
808 for ( U08 i=0; i<V_BITMAP + I_BITMAP + H_BITMAP; ++i ) {
809 if ((adc_enables[i] ^ adc_channels_ready[i]) != 0x00) {
810 adc_measured_all = false;
811 break;
812 }
813 }
814 ad7719_measured_all = true;
815 for ( U08 i=0; i<CHANNEL_BITMAP; ++i ) {
816 if ((ad7719_enables[i] ^ ad7719_channels_ready[i]) != 0x00) {
817 ad7719_measured_all = false;
818 break;
819 }
820 }
821
822
823}
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