source: firmware/FSC/src/FSC_test_electrical_connection.c@ 11565

Last change on this file since 11565 was 10667, checked in by neise, 15 years ago
File size: 9.6 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 //bool usart_rx_ready = false; // EOL was received, parser needs to be called
42
43// TIMER global variable
44 volatile U32 local_ms = 0;
45
46// AD7719 global variables
47 U32 ad7719_values[TEMP_CHANNELS];
48 U08 ad7719_enables[CHANNEL_BITMAP];
49 U08 ad7719_channels_ready[CHANNEL_BITMAP];
50 U08 ad7719_readings_since_last_muxing = 0;
51 U08 ad7719_current_channel = 0;
52 U32 ad7719_current_reading = 0;
53 bool ad7719_measured_all = false;
54
55// ATMEGA ADC global variables
56 U08 adc_values[V_CHANNELS + I_CHANNELS + H_CHANNELS]; // stores measured voltage in steps of 16mV
57 U08 adc_enables[V_BITMAP + I_BITMAP + H_BITMAP];
58 U08 adc_channels_ready[V_BITMAP + I_BITMAP + H_BITMAP];
59 U08 adc_readings_since_last_muxing = 0;
60 U08 adc_current_channel = 0;
61 U08 adc_current_reading = 0;
62 bool adc_measured_all = false;
63
64 bool once_told_you = true;
65 bool debug_mode = false;
66
67#ifndef ___MAIN_WORKFLOW_GLOBAL_VARS
68#define ___MAIN_WORKFLOW_GLOBAL_VARS
69 #define TEMP_CHANNELS 64
70 #define CHANNEL_BITMAP 8
71 #define AD7719_READINGS_UNTIL_SETTLED 1 // bei3:480ms
72 #define V_CHANNELS 40
73 #define I_CHANNELS 40
74 #define H_CHANNELS 4
75 #define V_BITMAP 5
76 #define I_BITMAP 5
77 #define H_BITMAP 1
78 #define ADC_READINGS_UNTIL_SETTLED 1
79
80#endif // ___MAIN_WORKFLOW_GLOBAL_VARS
81
82
83//-----------------------------------------------------------------------------
84// M A I N --- M A I N --- M A I N --- M A I N --- M A I N
85//-----------------------------------------------------------------------------
86int main(void)
87{
88 U08 register_content;
89
90 app_init(); // Setup: Watchdog and I/Os
91 usart_init();
92
93 spi_init(); // Initialize SPI interface as master
94
95// TIMER2 is used as local clock:
96// configure timer 2
97 TCCR2 = (1<<WGM21); // CTC Modus
98 TCCR2 |= (1<<CS21) | (1<<CS20); // Prescaler 64 --> counts up every 8us
99 OCR2 = 125-1; // --> output compare interrupt occurs every 125 x 8us = 1ms
100 // Compare Interrupt erlauben
101 TIMSK |= (1<<OCIE2);
102
103 // Enable interrupts
104 sei();
105
106 usart_write_str((pU08)"Start of test firmware (06.05.11) now:\n");
107 if (local_ms % 10000 == 0) {
108 usart_write_str((pU08)"time: ");
109 usart_write_U32(local_ms/1000,6);
110 usart_write_str((pU08)"sec.\n");
111 }
112
113 PORTB &= ~(1<<PB2); //#reset = LOW --> W5100 is in reset ...
114 _delay_ms(50); //reset
115
116 PORTB |= 1<<PB2; //#reset = HIGH --> W5100 is active
117 _delay_ms(5); // give it 5ms to accomodate.
118
119
120// DDRB |= (1 << PB2); // setze 5tes bit im data direction register von port B
121// DDRB |= (1 << PB3); // setze 5tes bit im data direction register von port B
122// DDRB |= (1 << PB4); // setze 5tes bit im data direction register von port B
123
124 while (1)
125 {
126 PORTB ^= (1<<PB4); // toggle zustand vom 5ten bit in Port B
127 PORTB ^= (1<<PB3); // toggle zustand vom 5ten bit in Port B
128 PORTB ^= (1<<PB2); // toggle zustand vom 5ten bit in Port B
129
130 _delay_ms(1); //reset
131
132 }
133
134
135 while (1) {
136 usart_write_str((pU08)"Start to read from W5300 CM_RTR0 register at:");
137 usart_write_U32(local_ms,10);
138 usart_write_str((pU08)"ms.\n");
139
140 register_content = w5100_read(CM_RTR0); // read something
141
142 usart_write_str((pU08)"register content of CM_RTR0 retrieved at:");
143 usart_write_U32(local_ms,10);
144 usart_write_str((pU08)"ms.\t");
145 usart_write_str((pU08)"register content is: 0x");
146 usart_write_U08_hex(register_content);
147 usart_write_str((pU08)"\n");
148
149
150 _delay_ms(400); //reset
151 _delay_ms(400); //reset
152 _delay_ms(400); //reset
153}
154
155
156 usart_write_str((pU08)"W5300 init begins at:");
157 usart_write_U32(local_ms,10);
158 usart_write_str((pU08)"ms.\n");
159
160 w5100_init();
161
162
163
164
165
166
167} // end of main()
168
169/*
170//MAIN LOOP
171while (1)
172{
173 if (heartbeat_enable) PORTB ^= (1<<PB3); // toggle Out2_spare --> heartbeat
174//----------------------------------------------------------------------------
175 //IF we need to send away one byte, and ready to send
176
177 if ( (usart_tx_buffer_index > 0) && (UCSRA & (1<<UDRE)) ) {
178 UDR = usart_tx_buffer[0];
179 // THis is shit
180 for (U08 i=0 ; i < USART_TX_BUFFER_SIZE; ++i) {
181 usart_tx_buffer[i] = usart_tx_buffer[i+1];
182 }
183 usart_tx_buffer_index--;
184 }
185//----------------------------------------------------------------------------
186
187 //IF we just received one byte, and there is enough space in the RX_buffer
188 if ( (UCSRA & (1<<RXC)) && (usart_rx_buffer_index < USART_RX_BUFFER_SIZE) ){
189 usart_last_char = UDR;
190 if (usart_last_char == '\n'){ // if EOL was received
191 usart_rx_ready = true;
192 }else {
193 usart_rx_buffer[usart_rx_buffer_index] = usart_last_char;
194 usart_rx_buffer_index++;
195 }
196 // here is still something strange .... better send an enter automatically
197 } else if (UCSRA & (1<<RXC)) { // if there is no scace in the buffer; read anyway.
198 usart_last_char = UDR;
199 usart_rx_buffer_index =0;
200 }
201//----------------------------------------------------------------------------
202
203 //IF USART DOR bit is set, PC is sending data to fast!!!
204 if ( UCSRA & (1<<DOR) ){
205 // flush TX_buffer and write warning message in
206 // maybe even switch off every measurement. ?
207 }
208//----------------------------------------------------------------------------
209
210 //IF TX_BUFFER was overrun.
211 if (usart_tx_buffer_overflow) {
212 // flash TX_buffer and write warning message in
213 // maybe even switch off every measurement. ?
214 //
215 // this should only happen, in verbose mode and with low baudrates.
216 }
217//----------------------------------------------------------------------------
218
219 //IF one command was received.
220 // -It is not allowed to send more than one command between two '\n'
221 if (usart_rx_ready){
222 parse();
223 usart_rx_buffer_index = 0;
224 usart_rx_ready = false;
225 }
226//----------------------------------------------------------------------------
227
228 //IF ATmega internal ADC did finish a conversion --every 200us
229 if ( (ADCSRA & (1<<ADIF)) && !adc_measured_all) {
230 adc_current_reading = ADCH;
231 if (adc_readings_since_last_muxing == ADC_READINGS_UNTIL_SETTLED) {
232 adc_values[adc_current_channel] = adc_current_reading;
233 adc_readings_since_last_muxing=0;
234 // note that this channel is ready, now and
235 adc_output(adc_current_channel, adc_current_reading);
236 // proceed to the next enabled channel.
237 adc_channels_ready[adc_current_channel/8] |= (1<<(adc_current_channel%8));
238 adc_current_channel = increase_adc (adc_current_channel);
239 Set_V_Muxer(adc_current_channel);
240 } else { // the ADC did not settle yet, we discard the reading
241 ++adc_readings_since_last_muxing;
242 // current reading is not used for anything else
243 }
244 }
245//----------------------------------------------------------------------------
246
247 //IF AD7719 ADC just finished a conversion -- every 60ms
248
249 if (AD7719_IS_READY()) {
250 ad7719_current_reading = read_adc(); // --takes at 4MHz SCLK speed about 6us
251 // AD7719 is only read out if settled. saves time.
252 if (ad7719_readings_since_last_muxing == AD7719_READINGS_UNTIL_SETTLED) {
253 ad7719_values[ad7719_current_channel] = ad7719_current_reading;
254 ad7719_readings_since_last_muxing=0;
255 // now prepare the data to be send away via USART.
256 //ad7719_output(ad7719_current_channel, ad7719_current_reading);
257 // note that this channel is ready, now and
258 // proceed to the next enabled channel.
259 ad7719_channels_ready[ad7719_current_channel/8] |= (1<<(ad7719_current_channel%8));
260 ad7719_current_channel = increase_ad7719 (ad7719_current_channel);
261 Set_T_Muxer(ad7719_current_channel);
262 } else { // the AD7719 did not settle yet, we discard the reading
263 ++ad7719_readings_since_last_muxing;
264
265 // current reading is not used for anything else
266 }
267 }
268//----------------------------------------------------------------------------
269 //IF one of the ADC measured all channels, we wanted to know.
270 check_if_measured_all();
271
272 if (ad7719_measured_all && adc_measured_all)
273 adc_output_all();
274
275//----------------------------------------------------------------------------
276
277// if (verbose == true)
278 // talk() was just defined so the
279 // code is not at this place ... look down.
280// talk();
281
282
283} // end of MAIN LOOP
284//-----------------------------------------------------------------------------
285// E N D E N D E N D E N D E N D E N D E N D
286//-----------------------------------------------------------------------------
287
288*/
289
290
291
292ISR (TIMER2_COMP_vect)
293{
294 ++local_ms;
295}
296
297
298
299
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