| 1 | //-----------------------------------------------------------------------------
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| 2 | #include "typedefs.h"
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| 3 | #include "application.h"
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| 4 | #include "spi_master.h"
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| 5 | #include "ad7719_adc.h"
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| 6 | #include "atmega_adc.h"
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| 7 | #include "usart.h"
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| 8 | #include "macros.h"
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| 9 | //#include "interpol.h"
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| 10 | //#include "w5100_spi_interface.h"
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| 11 | #include <avr/interrupt.h>
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| 12 | #include <avr/wdt.h>
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| 13 | #include <stdlib.h>
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| 14 | //-----------------------------------------------------------------------------
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| 15 | // definition of some functions:
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| 16 | // these function are implemented in this file, this is not doog coding style.
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| 17 | // sooner or later, they will be moved into more apropriate files.
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| 18 | U08 increase_adc (U08 channel);
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| 19 | U08 increase_ad7719 (U08 channel);
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| 20 | void Set_V_Muxer (U08 channel);
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| 21 | void Set_T_Muxer(U08 channel);
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| 22 | void parse();
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| 23 | void check_if_measured_all() ;
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| 24 | void print_ad7719_nicely(bool with_header, bool with_LF) ;
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| 25 | void print_adc_nicely(bool with_header, bool with_LF) ;
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| 26 |
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| 27 | void print_invalid_enable_statement();
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| 28 | void print_help() ; // is not printin help at the moment .... eats up too much RAM
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| 29 | void print_adc_enable_status(bool with_headline);
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| 30 | void print_ad7719_enable_status(bool with_headline) ;
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| 31 |
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| 32 | bool check_if_adc_measurement_done();
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| 33 | bool check_if_ad7719_measurement_done();
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| 34 |
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| 35 |
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| 36 | // end of function definition:
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| 37 | //-----------------------------------------------------------------------------
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| 38 |
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| 39 | // Reference resistance
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| 40 | float r_reference = 6.257;
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| 41 |
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| 42 | // MAIN WORKFLOW GLOBAL VARIABLES
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| 43 | bool verbose;
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| 44 | bool heartbeat_enable;
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| 45 |
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| 46 | // USART global variables
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| 47 | U08 usart_rx_buffer[USART_RX_BUFFER_SIZE];
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| 48 | U08 usart_tx_buffer[USART_TX_BUFFER_SIZE];
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| 49 | U08 usart_received_chars;
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| 50 | U08 usart_rx_buffer_index = 0;
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| 51 | U08 usart_tx_buffer_index = 0;
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| 52 | U08 usart_last_char; // last received char
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| 53 |
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| 54 | // USART FLAGS
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| 55 | bool usart_tx_buffer_overflow = false; // true if usart_tx_buffer was full.
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| 56 | bool usart_rx_ready = false; // EOL was received, parser needs to be called
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| 57 |
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| 58 | // TIMER global variable
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| 59 | volatile U32 local_ms = 0;
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| 60 |
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| 61 | // AD7719 global variables
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| 62 | #define TEMP_CHANNELS 16
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| 63 | #define CHANNEL_BITMAP 2
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| 64 | #define AD7719_READINGS_UNTIL_SETTLED 3 // bei3:480ms
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| 65 | U32 ad7719_values[TEMP_CHANNELS];
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| 66 | U08 ad7719_enables[CHANNEL_BITMAP];
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| 67 | U08 ad7719_channels_ready[CHANNEL_BITMAP];
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| 68 | U08 ad7719_readings_since_last_muxing = 0;
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| 69 | U08 ad7719_current_channel = 0;
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| 70 | U32 ad7719_current_reading = 0;
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| 71 | bool ad7719_measured_all = false;
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| 72 | bool ad7719_values_printed = true;
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| 73 | bool ad7719_print_endless = false;
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| 74 |
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| 75 | // ATMEGA ADC global variables
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| 76 | #define V_CHANNELS 16
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| 77 | #define V_BITMAP 2
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| 78 | #define ADC_READINGS_UNTIL_SETTLED 1
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| 79 | U08 adc_readings_until_mean=250;
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| 80 | U32 adc_values[V_CHANNELS]; // stores measured voltage in steps of 16mV
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| 81 | U08 adc_enables[V_BITMAP];
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| 82 | U08 adc_channels_ready[V_BITMAP];
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| 83 | U08 adc_readings_since_last_muxing = 0;
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| 84 | U08 adc_current_channel = 0;
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| 85 | U16 adc_current_reading = 0;
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| 86 | bool adc_measured_all = false;
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| 87 | bool adc_values_printed = true;
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| 88 | bool adc_print_endless = false;
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| 89 |
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| 90 | bool debug_mode = false;
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| 91 |
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| 92 | //U32 hb_counter = 0;
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| 93 |
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| 94 | //-----------------------------------------------------------------------------
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| 95 | // M A I N --- M A I N --- M A I N --- M A I N --- M A I N
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| 96 | //-----------------------------------------------------------------------------
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| 97 | int main(void)
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| 98 | {
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| 99 | app_init(); // Setup: Watchdog and I/Os
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| 100 | usart_init(); // Initialize serial interface
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| 101 | spi_init(); // Initialize SPI interface as master
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| 102 | ad7719_init(); // Initialize AD7719 ADC as SPI slave
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| 103 | atmega_adc_init();
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| 104 |
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| 105 | // TIMER2 is used as local clock:
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| 106 | // configure timer 2
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| 107 | TCCR2 = (1<<WGM21); // CTC Modus
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| 108 | TCCR2 |= (1<<CS21) | (1<<CS20); // Prescaler 64 --> counts up every 8us
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| 109 | OCR2 = 125-1; // --> output compare interrupt occurs every 125 x 8us = 1ms
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| 110 | // Compare Interrupt erlauben
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| 111 | TIMSK |= (1<<OCIE2);
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| 112 |
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| 113 | // Enable interrupts
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| 114 | sei();
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| 115 |
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| 116 | PORTB &= ~(1<<PB2);
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| 117 |
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| 118 | for ( U08 i=0; i<CHANNEL_BITMAP; ++i ) {
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| 119 | ad7719_enables[1]=0x00;
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| 120 | ad7719_enables[0]=0xFF;
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| 121 |
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| 122 | // ad7719_enables[i]=0x00;
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| 123 | ad7719_channels_ready[i]=0;
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| 124 | }
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| 125 |
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| 126 | for ( U08 i=0; i<V_BITMAP; ++i ) {
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| 127 | adc_enables[1]=0x33;
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| 128 | adc_enables[0]=0xFF;
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| 129 | // adc_enables[i]=0x00;
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| 130 | adc_channels_ready[i]=0;
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| 131 | }
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| 132 |
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| 133 |
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| 134 | static U08 welcome[]="welcome to:\n MSR command interface 1.0 \n build: 29.03.2010\n";
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| 135 | usart_write_str(welcome);
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| 136 | print_help();
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| 137 | print_adc_enable_status(true);
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| 138 | usart_write_char('\n');
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| 139 | print_ad7719_enable_status(true);
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| 140 | usart_write_char('\n');
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| 141 | usart_write_str((pU08)"time:");
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| 142 | usart_write_float((float)local_ms/1000 , 1,7);
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| 143 | usart_write_str((pU08)" sec.\n");
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| 144 |
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| 145 | //MAIN LOOP
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| 146 | while (1)
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| 147 | {
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| 148 | if (check_if_adc_measurement_done()) {
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| 149 | if(adc_print_endless){
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| 150 | usart_write_str((pU08)"V|");
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| 151 | usart_write_float((float)local_ms/1000 , 1,4);
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| 152 | print_adc_nicely(false,true);
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| 153 | for ( U08 i=0; i<V_BITMAP; ++i ) {
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| 154 | adc_channels_ready[i]=0;
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| 155 | }
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| 156 | } else
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| 157 | if ( !adc_values_printed) {
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| 158 | adc_values_printed = true;
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| 159 | print_adc_nicely(true,true);
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| 160 | }
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| 161 | }
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| 162 |
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| 163 | if (check_if_ad7719_measurement_done()) {
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| 164 | if(ad7719_print_endless){
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| 165 | usart_write_str((pU08)"R|");
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| 166 | usart_write_float((float)local_ms/1000 , 1,4);
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| 167 | print_ad7719_nicely(false,true);
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| 168 | for ( U08 i=0; i<CHANNEL_BITMAP; ++i ) {
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| 169 | ad7719_channels_ready[i]=0;
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| 170 | }
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| 171 | } else
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| 172 | if ( !ad7719_values_printed) {
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| 173 | ad7719_values_printed = true;
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| 174 | print_ad7719_nicely(true,true);
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| 175 | }
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| 176 | }
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| 177 |
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| 178 | //----------------------------------------------------------------------------
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| 179 |
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| 180 | if (heartbeat_enable) {
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| 181 | PORTA ^= (1<<PA4); // toggle PA4 --> heartbeat
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| 182 |
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| 183 | // warte 100.000 heartbeats und schreibe die Zeit raus
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| 184 | //hb_counter++;
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| 185 | //if (hb_counter == 100000){
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| 186 | // hb_counter = 0;
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| 187 | // usart_write_float((float)local_ms/1000 , 1,7);
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| 188 | // usart_write_str((pU08)" sec.\n");
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| 189 | //}
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| 190 | }
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| 191 |
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| 192 | //----------------------------------------------------------------------------
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| 193 | //IF we need to send away one byte, and ready to send
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| 194 |
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| 195 | if ( (usart_tx_buffer_index > 0) && (UCSRA & (1<<UDRE)) ) {
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| 196 | UDR = usart_tx_buffer[0];
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| 197 | // THis is shit
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| 198 | for (U08 i=0 ; i < USART_TX_BUFFER_SIZE; ++i) {
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| 199 | usart_tx_buffer[i] = usart_tx_buffer[i+1];
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| 200 | }
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| 201 | usart_tx_buffer_index--;
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| 202 | }
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| 203 | //----------------------------------------------------------------------------
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| 204 |
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| 205 | //IF we just received one byte
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| 206 | if ( UCSRA & (1<<RXC) )
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| 207 | {
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| 208 | usart_last_char = UDR; // read the byte from ATmega internal buffer
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| 209 | // what are we going to do with this byte?
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| 210 | if (usart_rx_buffer_index < USART_RX_BUFFER_SIZE ) // if space in the buffer ... we store it.
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| 211 | {
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| 212 | usart_rx_buffer[usart_rx_buffer_index] = usart_last_char;
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| 213 | usart_rx_buffer_index++;
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| 214 | if (usart_last_char == '\n'){ // if EOL was received
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| 215 | usart_rx_buffer_index--;
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| 216 | usart_rx_buffer[usart_rx_buffer_index] = 0;
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| 217 | usart_rx_ready = true;
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| 218 | }
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| 219 | } else { // if no space in buffer ... we try to parse()
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| 220 | usart_write_str((pU08)"receive buffer overflow ... parsing now\n");
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| 221 | usart_rx_ready = true;
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| 222 | }
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| 223 | }
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| 224 |
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| 225 | //----------------------------------------------------------------------------
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| 226 |
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| 227 | //IF USART DOR bit is set, PC is sending data to fast!!!
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| 228 | if ( UCSRA & (1<<DOR) ){
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| 229 | usart_write_str((pU08)"PC sending to fast!\n");
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| 230 | usart_last_char = UDR;
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| 231 | // flush TX_buffer and write warning message in
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| 232 | // maybe even switch off every measurement. ?
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| 233 | }
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| 234 | //----------------------------------------------------------------------------
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| 235 |
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| 236 | //IF TX_BUFFER was overrun.
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| 237 | if (usart_tx_buffer_overflow) {
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| 238 | // flash TX_buffer and write warning message in
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| 239 | // maybe even switch off every measurement. ?
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| 240 | //
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| 241 | // this should only happen, in verbose mode and with low baudrates.
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| 242 | }
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| 243 | //----------------------------------------------------------------------------
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| 244 |
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| 245 | //IF one command was received.
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| 246 | // -It is not allowed to send more than one command between two '\n'
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| 247 | if (usart_rx_ready){
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| 248 | parse();
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| 249 | usart_rx_ready = false;
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| 250 | for ( U08 i =0 ; i < USART_RX_BUFFER_SIZE; i++){
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| 251 | usart_rx_buffer[i]=0;
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| 252 | }
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| 253 | usart_rx_buffer_index = 0;
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| 254 |
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| 255 | }
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| 256 | //----------------------------------------------------------------------------
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| 257 |
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| 258 | //IF ATmega internal ADC did finish a conversion --every 200us
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| 259 | if ( (ADCSRA & (1<<ADIF)) && !adc_measured_all) {
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| 260 | adc_current_reading = (U16)ADCL;
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| 261 | adc_current_reading += (U16)ADCH<<8;
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| 262 | if (adc_readings_since_last_muxing == ADC_READINGS_UNTIL_SETTLED+adc_readings_until_mean-1) {
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| 263 | adc_channels_ready[adc_current_channel/8] |= (1<<(adc_current_channel%8));
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| 264 | adc_current_channel = increase_adc (adc_current_channel);
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| 265 | adc_values[adc_current_channel] = 0;
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| 266 | Set_V_Muxer(adc_current_channel);
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| 267 | adc_readings_since_last_muxing = 0;
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| 268 | _delay_ms(10);
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| 269 | }
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| 270 | else if (adc_readings_since_last_muxing >= ADC_READINGS_UNTIL_SETTLED-1) {
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| 271 | adc_values[adc_current_channel] += adc_current_reading;
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| 272 | ++adc_readings_since_last_muxing;
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| 273 | }
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| 274 | else {
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| 275 | ++adc_readings_since_last_muxing;
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| 276 | }
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| 277 |
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| 278 | }
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| 279 | //----------------------------------------------------------------------------
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| 280 |
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| 281 | //IF AD7719 ADC just finished a conversion -- every 60ms
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| 282 |
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| 283 | if (AD7719_IS_READY() && !ad7719_measured_all) {
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| 284 |
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| 285 |
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| 286 | ad7719_current_reading = read_adc(); // --takes at 4MHz SCLK speed about 6us
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| 287 | // AD7719 is only read out if settled. saves time.
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| 288 | if (ad7719_readings_since_last_muxing == AD7719_READINGS_UNTIL_SETTLED-1) {
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| 289 | ad7719_values[ad7719_current_channel] = ad7719_current_reading;
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| 290 | ad7719_readings_since_last_muxing=0;
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| 291 | if (debug_mode) {
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| 292 | usart_write_U32_hex(ad7719_current_reading);
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| 293 | usart_write_char('\n');
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| 294 | usart_write_char('\n');
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| 295 | }
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| 296 | // now prepare the data to be send away via USART.
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| 297 |
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| 298 | // note that this channel is ready, now and
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| 299 | // proceed to the next enabled channel.
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| 300 | ad7719_channels_ready[ad7719_current_channel/8] |= (1<<(ad7719_current_channel%8));
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| 301 | ad7719_current_channel = increase_ad7719 (ad7719_current_channel);
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| 302 | Set_T_Muxer(ad7719_current_channel);
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| 303 | } else { // the AD7719 did not settle yet, we discard the reading
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| 304 | ++ad7719_readings_since_last_muxing;
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| 305 | if (debug_mode) {
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| 306 | usart_write_U32_hex(ad7719_current_reading);
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| 307 | usart_write_char('\n');
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| 308 | }
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| 309 |
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| 310 | // current reading is not used for anything else
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| 311 | }
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| 312 | }
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| 313 |
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| 314 |
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| 315 | } // end of MAIN LOOP
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| 316 |
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| 317 | } // end of main function
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| 318 | //-----------------------------------------------------------------------------
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| 319 | // E N D E N D E N D E N D E N D E N D E N D
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| 320 | //-----------------------------------------------------------------------------
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| 321 |
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| 322 |
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| 323 | ISR (TIMER2_COMP_vect)
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| 324 | {
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| 325 | ++local_ms;
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| 326 | }
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| 327 |
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| 328 | U08 increase_adc (U08 channel){
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| 329 | U08 effective_channel;
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| 330 | for ( U08 increase = 1 ; increase <= V_CHANNELS; increase++)
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| 331 | {
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| 332 | effective_channel = (channel + increase) % (V_CHANNELS);
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| 333 | if (adc_enables[effective_channel/8] & (1<<effective_channel%8))
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| 334 | return effective_channel;
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| 335 | }
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| 336 | return channel;
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| 337 | } // end if increase_adc;
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| 338 |
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| 339 | U08 increase_ad7719 (U08 channel){
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| 340 | U08 effective_channel;
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| 341 | for ( U08 increase = 1 ; increase <= TEMP_CHANNELS; increase++)
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| 342 | {
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| 343 | effective_channel = (channel + increase) % (TEMP_CHANNELS);
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| 344 | if (ad7719_enables[effective_channel/8] & (1<<effective_channel%8))
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| 345 | return effective_channel;
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| 346 | }
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| 347 | return channel;
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| 348 | } // end if increase_adc;
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| 349 |
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| 350 | // Sets voltage Muxer to current channel
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| 351 | void Set_V_Muxer (U08 channel){
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| 352 | PORTC = (PORTC & 0xF0) | (0x0F & channel);
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| 353 | }
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| 354 |
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| 355 | void Set_T_Muxer(U08 channel) {
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| 356 | PORTA = (PORTA & 0xF0) | (0x0F & channel); // Here the muxer is switched.
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| 357 | }
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| 358 |
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| 359 | bool check_if_adc_measurement_done(){
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| 360 | adc_measured_all = true;
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| 361 | for ( U08 i=0; i<V_BITMAP; ++i ) {
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| 362 | if ((adc_enables[i] ^ adc_channels_ready[i]) != 0x00) {
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| 363 | adc_measured_all = false;
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| 364 | break;
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| 365 | }
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| 366 | }
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| 367 | return adc_measured_all;
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| 368 | }
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| 369 |
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| 370 | bool check_if_ad7719_measurement_done(){
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| 371 | ad7719_measured_all = true;
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| 372 | for ( U08 i=0; i<CHANNEL_BITMAP; ++i ) {
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| 373 | if ((ad7719_enables[i] ^ ad7719_channels_ready[i]) != 0x00) {
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| 374 | ad7719_measured_all = false;
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| 375 | break;
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| 376 | }
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| 377 | }
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| 378 | return ad7719_measured_all;
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| 379 | }
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| 380 |
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| 381 | void print_ad7719_nicely(bool with_header, bool with_LF) {
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| 382 | float value_in_ohms;
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| 383 | if (with_header) {
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| 384 |
|
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| 385 | usart_write_str((pU08)"\n resistance(Ohm)\n (note: only enabled channels are printed):\n");
|
|---|
| 386 |
|
|---|
| 387 | // Überschrift alles in einer Zeile, hoffentlich sieht das gut aus.
|
|---|
| 388 | for (U08 i=0; i< TEMP_CHANNELS;++i) {
|
|---|
| 389 | usart_write_str((pU08)"|R"); // 1 letter -- R
|
|---|
| 390 | usart_write_U08(i, 2); // 2 letters -- the channel number
|
|---|
| 391 | usart_write_str((pU08)" "); // 5 spaces
|
|---|
| 392 | }
|
|---|
| 393 | usart_write_str((pU08)"|\n");
|
|---|
| 394 | }
|
|---|
| 395 |
|
|---|
| 396 | // Jetzt die Werte, auch alle in einer Zeile
|
|---|
| 397 | usart_write_char('|');
|
|---|
| 398 | for (U08 i=0; i< TEMP_CHANNELS;++i) {
|
|---|
| 399 |
|
|---|
| 400 | if (ad7719_enables[i/8] & (1<<i%8))
|
|---|
| 401 | {
|
|---|
| 402 | value_in_ohms = (r_reference * 1024 * ad7719_values[i]) / ((U32)1 << 25);
|
|---|
| 403 | if (value_in_ohms < 1000.0)
|
|---|
| 404 | usart_write_char(' ');
|
|---|
| 405 | if (value_in_ohms < 100.0)
|
|---|
| 406 | usart_write_char(' ');
|
|---|
| 407 | if (value_in_ohms < 10.0)
|
|---|
| 408 | usart_write_char(' ');
|
|---|
| 409 | usart_write_float(value_in_ohms, 1, 5); // 6 letters .. 1002.4 ohm .. this is 6 letter .. the dot . is also a letter
|
|---|
| 410 | usart_write_char('|'); // 2 spaces
|
|---|
| 411 | } else {
|
|---|
| 412 | usart_write_str((pU08)" |"); // or 8 spaces
|
|---|
| 413 | }
|
|---|
| 414 | }
|
|---|
| 415 | if (with_LF)
|
|---|
| 416 | usart_write_char('\n');
|
|---|
| 417 | }
|
|---|
| 418 |
|
|---|
| 419 | void print_adc_nicely(bool with_header, bool with_LF) {
|
|---|
| 420 |
|
|---|
| 421 | if (with_header) {
|
|---|
| 422 | usart_write_str((pU08)"Voltage(mV), Humidity(mV) & Pressure(mV):\n");
|
|---|
| 423 |
|
|---|
| 424 | for (U08 i=0; i < 8; ++i) {
|
|---|
| 425 | usart_write_str((pU08)"| V");
|
|---|
| 426 | usart_write_U08(i, 1); //data
|
|---|
| 427 | usart_write_str((pU08)" ");
|
|---|
| 428 | }
|
|---|
| 429 |
|
|---|
| 430 | for (U08 i=0; i < 4; ++i) {
|
|---|
| 431 | usart_write_str((pU08)"| H");
|
|---|
| 432 | usart_write_U08(i, 1); //data
|
|---|
| 433 | usart_write_str((pU08)" ");
|
|---|
| 434 | }
|
|---|
| 435 | for (U08 i=0; i < 4; ++i) {
|
|---|
| 436 | usart_write_str((pU08)"| P");
|
|---|
| 437 | usart_write_U08(i, 1); //data
|
|---|
| 438 | usart_write_str((pU08)" ");
|
|---|
| 439 | }
|
|---|
| 440 | usart_write_str((pU08)"|\n");
|
|---|
| 441 | }
|
|---|
| 442 |
|
|---|
| 443 | // Jetzt die gemessenen Werte und zwar nur die Spannungen
|
|---|
| 444 | for (U08 i=0; i < 16; ++i) {
|
|---|
| 445 | usart_write_char('|');
|
|---|
| 446 | if (adc_enables[i/8] & (1<<i%8))
|
|---|
| 447 | usart_write_U32( ( ( adc_values[i] * 4 + 2 ) / adc_readings_until_mean ) , 6 );
|
|---|
| 448 | else
|
|---|
| 449 | usart_write_str((pU08)" ");
|
|---|
| 450 | }
|
|---|
| 451 | usart_write_char('|');
|
|---|
| 452 |
|
|---|
| 453 | if (with_LF)
|
|---|
| 454 | usart_write_char('\n');
|
|---|
| 455 | }
|
|---|
| 456 |
|
|---|
| 457 |
|
|---|
| 458 | /////////////////////////////////////////////////////////////////////////////////////////////////////
|
|---|
| 459 | /////////////// P A R S E R /////////////////////////////////////////////////////////////////////////
|
|---|
| 460 | /////////////////////////////////////////////////////////////////////////////////////////////////////
|
|---|
| 461 | // this method parses the data,
|
|---|
| 462 | // which came in via USART
|
|---|
| 463 | // later it might as well parse the data from ethernet.
|
|---|
| 464 | void parse() {
|
|---|
| 465 |
|
|---|
| 466 | U08 input_number = 0;
|
|---|
| 467 | bool enable = false;
|
|---|
| 468 | // look at first byte
|
|---|
| 469 | // I hope, I can manage to use one byte commands
|
|---|
| 470 | usart_rx_buffer[USART_RX_BUFFER_SIZE-1] = 0;
|
|---|
| 471 | usart_write_char(' ');
|
|---|
| 472 | usart_write_str(usart_rx_buffer);
|
|---|
| 473 | usart_write_char('\n');
|
|---|
| 474 | //usart_write_str((pU08)"\n received number of bytes:");
|
|---|
| 475 | //usart_write_U08(usart_rx_buffer_index,3);
|
|---|
| 476 |
|
|---|
| 477 | if (usart_rx_buffer_index >0) {
|
|---|
| 478 | switch (usart_rx_buffer[0]) {
|
|---|
| 479 | case 'E': // user wants to enable/disable something
|
|---|
| 480 | case 'e':
|
|---|
| 481 | enable = true;
|
|---|
| 482 | case 'D':
|
|---|
| 483 | case 'd':
|
|---|
| 484 |
|
|---|
| 485 | if (usart_rx_buffer_index>=1) { // let's see what.
|
|---|
| 486 | if ( usart_rx_buffer[1] != 'r' &&
|
|---|
| 487 | usart_rx_buffer[1] != 'v' &&
|
|---|
| 488 | usart_rx_buffer[1] != 'h' &&
|
|---|
| 489 | usart_rx_buffer[1] != 'p' )
|
|---|
| 490 | {
|
|---|
| 491 | print_invalid_enable_statement();
|
|---|
| 492 | break;
|
|---|
| 493 | }
|
|---|
| 494 | }
|
|---|
| 495 |
|
|---|
| 496 | input_number = 0;
|
|---|
| 497 | if (usart_rx_buffer_index >2) { // lets check the first digit
|
|---|
| 498 | if ( usart_rx_buffer[2] >= '0' && usart_rx_buffer[2] <= '9' ) {
|
|---|
| 499 | input_number = usart_rx_buffer[2] - '0';
|
|---|
| 500 | } else {
|
|---|
| 501 | print_invalid_enable_statement();
|
|---|
| 502 | break;
|
|---|
| 503 | }
|
|---|
| 504 | }
|
|---|
| 505 | if (usart_rx_buffer_index >3) { // lets check the 2nd digit
|
|---|
| 506 | if ( usart_rx_buffer[3] >= '0' && usart_rx_buffer[3] <= '9' ) {
|
|---|
| 507 | input_number = 10*input_number + usart_rx_buffer[3] - '0';
|
|---|
| 508 | } else {
|
|---|
| 509 | // okay as well ... if the second digit is missing ..
|
|---|
| 510 | // we might have trailing spaces
|
|---|
| 511 | // that's okay .. we just accept the first number.
|
|---|
| 512 | }
|
|---|
| 513 | }
|
|---|
| 514 | if (usart_rx_buffer_index>2) {
|
|---|
| 515 | usart_write_str((pU08)"\n I will switch ");
|
|---|
| 516 | if (enable)
|
|---|
| 517 | usart_write_str((pU08)"on ");
|
|---|
| 518 | else
|
|---|
| 519 | usart_write_str((pU08)"off ");
|
|---|
| 520 |
|
|---|
| 521 | // now we know, what the user wanted ... and we need to do it.
|
|---|
| 522 | switch (usart_rx_buffer[1]) {
|
|---|
| 523 | case 'r':
|
|---|
| 524 | if (enable)
|
|---|
| 525 | ad7719_enables[input_number/8] |= (1<<(input_number%8));
|
|---|
| 526 | else {
|
|---|
| 527 | ad7719_enables[input_number/8] &= ~(1<<(input_number%8));
|
|---|
| 528 | ad7719_channels_ready[input_number/8] &= ~(1<<(input_number%8));
|
|---|
| 529 | }
|
|---|
| 530 | usart_write_str((pU08)" resistance channel ");
|
|---|
| 531 | usart_write_U08(input_number,2);
|
|---|
| 532 | usart_write_char('\n');
|
|---|
| 533 | break;
|
|---|
| 534 | case 'v':
|
|---|
| 535 | if (enable)
|
|---|
| 536 | adc_enables[input_number/8] |= (1<<(input_number%8));
|
|---|
| 537 | else {
|
|---|
| 538 | adc_enables[input_number/8] &= ~(1<<(input_number%8));
|
|---|
| 539 | adc_channels_ready[input_number/8] &= ~(1<<(input_number%8));
|
|---|
| 540 | }
|
|---|
| 541 | usart_write_str((pU08)" voltage channel ");
|
|---|
| 542 | usart_write_U08(input_number,2);
|
|---|
| 543 | usart_write_char('\n');
|
|---|
| 544 | break;
|
|---|
| 545 |
|
|---|
| 546 | case 'h':
|
|---|
| 547 | if (enable)
|
|---|
| 548 | adc_enables[1] |= (1<<(input_number%4));
|
|---|
| 549 | else {
|
|---|
| 550 | adc_enables[1] &= ~(1<<(input_number%4));
|
|---|
| 551 | adc_channels_ready[1] &= ~(1<<(input_number%4));
|
|---|
| 552 | }
|
|---|
| 553 | usart_write_str((pU08)" humidity channel ");
|
|---|
| 554 | usart_write_U08(input_number,2);
|
|---|
| 555 | usart_write_char('\n');
|
|---|
| 556 | break;
|
|---|
| 557 | case 'p':
|
|---|
| 558 | if (enable)
|
|---|
| 559 | adc_enables[1] |= (1<<((input_number%4) + 4));
|
|---|
| 560 | else {
|
|---|
| 561 | adc_enables[1] &= ~(1<<((input_number%4) + 4));
|
|---|
| 562 | adc_channels_ready[1] &= ~(1<<((input_number%4) + 4));
|
|---|
| 563 | }
|
|---|
| 564 | usart_write_str((pU08)" pressure channel ");
|
|---|
| 565 | usart_write_U08(input_number,2);
|
|---|
| 566 | usart_write_char('\n');
|
|---|
| 567 | break;
|
|---|
| 568 | default:
|
|---|
| 569 | usart_write_str((pU08)"\n DAMN! this should never happen"
|
|---|
| 570 | "- enable/disable switch-case!\n");
|
|---|
| 571 | break;
|
|---|
| 572 | }
|
|---|
| 573 |
|
|---|
| 574 |
|
|---|
| 575 |
|
|---|
| 576 | }// end of if usart_rx_buffer_index>2 --> this should not be necessary at all
|
|---|
| 577 | break;
|
|---|
| 578 |
|
|---|
| 579 | case 'b':
|
|---|
| 580 | usart_write_str((pU08)"\nheartbeat ");
|
|---|
| 581 | heartbeat_enable = true;
|
|---|
| 582 | if (usart_rx_buffer[1] == '0'){
|
|---|
| 583 | heartbeat_enable = false;
|
|---|
| 584 | usart_write_str((pU08)"off\n");
|
|---|
| 585 | } else {
|
|---|
| 586 | usart_write_str((pU08)"on\n");
|
|---|
| 587 | }
|
|---|
| 588 | break;
|
|---|
| 589 | case 'G': // GET the Temperature channels, which are enabled
|
|---|
| 590 | ad7719_values_printed = false;
|
|---|
| 591 | for ( U08 i=0; i<CHANNEL_BITMAP; ++i ) {
|
|---|
| 592 | ad7719_channels_ready[i]=0;
|
|---|
| 593 | }
|
|---|
| 594 | break;
|
|---|
| 595 | case 'g': // GET the voltage/current/humidity channels, which are enabled
|
|---|
| 596 | adc_values_printed = false;
|
|---|
| 597 | for ( U08 i=0; i<V_BITMAP; ++i ) {
|
|---|
| 598 | adc_channels_ready[i]=0;
|
|---|
| 599 | }
|
|---|
| 600 | break;
|
|---|
| 601 |
|
|---|
| 602 | case 'p':
|
|---|
| 603 | adc_print_endless = true;
|
|---|
| 604 | if (usart_rx_buffer[1] == '0')
|
|---|
| 605 | adc_print_endless = false;
|
|---|
| 606 | break;
|
|---|
| 607 |
|
|---|
| 608 | case 'P':
|
|---|
| 609 | ad7719_print_endless = true;
|
|---|
| 610 | if (usart_rx_buffer[1] == '0')
|
|---|
| 611 | ad7719_print_endless = false;
|
|---|
| 612 | break;
|
|---|
| 613 |
|
|---|
| 614 |
|
|---|
| 615 | case 's':
|
|---|
| 616 | print_adc_enable_status(true);
|
|---|
| 617 | usart_write_char('\n');
|
|---|
| 618 |
|
|---|
| 619 | print_ad7719_enable_status(true);
|
|---|
| 620 | usart_write_char('\n');
|
|---|
| 621 |
|
|---|
| 622 | usart_write_str((pU08)"time:");
|
|---|
| 623 | usart_write_float((float)local_ms/1000 , 1,7);
|
|---|
| 624 | usart_write_str((pU08)" sec.\n");
|
|---|
| 625 | break;
|
|---|
| 626 |
|
|---|
| 627 | case '!':
|
|---|
| 628 | usart_write_str((pU08)"\ndebug mode ");
|
|---|
| 629 | debug_mode = true;
|
|---|
| 630 | if (usart_rx_buffer[1] == '0'){
|
|---|
| 631 | debug_mode = false;
|
|---|
| 632 | usart_write_str((pU08)"off\n");
|
|---|
| 633 | } else {
|
|---|
| 634 | usart_write_str((pU08)"on\n");
|
|---|
| 635 | }
|
|---|
| 636 | break;
|
|---|
| 637 |
|
|---|
| 638 | case 'h':
|
|---|
| 639 | case 'H':
|
|---|
| 640 | print_help();
|
|---|
| 641 | break;
|
|---|
| 642 | }
|
|---|
| 643 | } else
|
|---|
| 644 | {
|
|---|
| 645 | // zero bytes received
|
|---|
| 646 | }
|
|---|
| 647 |
|
|---|
| 648 |
|
|---|
| 649 | for (U08 i=0; i<USART_RX_BUFFER_SIZE; ++i)
|
|---|
| 650 | usart_rx_buffer[i] = 0;
|
|---|
| 651 | }
|
|---|
| 652 |
|
|---|
| 653 |
|
|---|
| 654 | void print_invalid_enable_statement(){
|
|---|
| 655 | usart_write_str((pU08)"\nerror: invalid 'enable' or 'disable'statement.\n");
|
|---|
| 656 | usart_write_str((pU08)"usage: [E|e|D|d][r|v|h|p][0..15]\n");
|
|---|
| 657 | usart_write_str((pU08)"e.g.: Ev1 --> enable voltage channel 1\n");
|
|---|
| 658 | usart_write_str((pU08)"e.g.: dr0 --> disable resistance channel 0\n");
|
|---|
| 659 | }
|
|---|
| 660 |
|
|---|
| 661 | void print_help() {
|
|---|
| 662 |
|
|---|
| 663 | usart_write_str((pU08)
|
|---|
| 664 | "List of MSR commands:\n29.03.2011\n"
|
|---|
| 665 | "E or e -- enable channel: type e? for detailed help\n"
|
|---|
| 666 | "D or d -- disable channel: type d? for detailed help\n"
|
|---|
| 667 | "b0 or b1 -- switch heartbeat PA4 on or off\n"
|
|---|
| 668 | "G -- 'get AD7719' -> measure resistances again\n"
|
|---|
| 669 | "g -- 'get ATmega adc' -> measure voltages again\n"
|
|---|
| 670 | "P -- get & print AD7719 infinitly \n"
|
|---|
| 671 | "p -- get & print ATmega adc infinitly \n"
|
|---|
| 672 | "s -- print status\n"
|
|---|
| 673 | "H or h -- print this help\n"
|
|---|
| 674 | );
|
|---|
| 675 |
|
|---|
| 676 | }
|
|---|
| 677 |
|
|---|
| 678 | void print_adc_enable_status(bool with_headline) {
|
|---|
| 679 |
|
|---|
| 680 | if (with_headline) {
|
|---|
| 681 | usart_write_str((pU08)"adc channels 15 downto 0:\n i.e. left is pressure and humidity ... right is voltage\n");
|
|---|
| 682 | }
|
|---|
| 683 | usart_write_U08_bin(adc_enables[1]);
|
|---|
| 684 | usart_write_char(' ');
|
|---|
| 685 | usart_write_U08_bin(adc_enables[0]);
|
|---|
| 686 | usart_write_char(' ');
|
|---|
| 687 |
|
|---|
| 688 | usart_write_char('\n');
|
|---|
| 689 | usart_write_U08_bin(adc_channels_ready[1]);
|
|---|
| 690 | usart_write_char(' ');
|
|---|
| 691 | usart_write_U08_bin(adc_channels_ready[0]);
|
|---|
| 692 | usart_write_char(' ');
|
|---|
| 693 | }
|
|---|
| 694 |
|
|---|
| 695 | void print_ad7719_enable_status(bool with_headline) {
|
|---|
| 696 |
|
|---|
| 697 | if (with_headline) {
|
|---|
| 698 | usart_write_str((pU08)"ad7719 channels: 15 downto 0:\n");
|
|---|
| 699 | }
|
|---|
| 700 | usart_write_U08_bin(ad7719_enables[1]);
|
|---|
| 701 | usart_write_char(' ');
|
|---|
| 702 | usart_write_U08_bin(ad7719_enables[0]);
|
|---|
| 703 | usart_write_char(' ');
|
|---|
| 704 |
|
|---|
| 705 | usart_write_char('\n');
|
|---|
| 706 | usart_write_U08_bin(ad7719_channels_ready[1]);
|
|---|
| 707 | usart_write_char(' ');
|
|---|
| 708 | usart_write_U08_bin(ad7719_channels_ready[0]);
|
|---|
| 709 |
|
|---|
| 710 | }
|
|---|
| 711 |
|
|---|