Vitaliy Loginov / PGA280_ADS1259

ads1259

Dependents:   Chromatograph_Mobile Chromatograph_Mobile

ADS1259.cpp@1:533ce2102fcc, 2020-06-22 (annotated)

Committer:
vitlog
Date:
Mon Jun 22 09:51:45 2020 +0000
Revision:
1:533ce2102fcc
Parent:
0:f9ba28ab9f4c 
ne pomnyu chto pomenyal

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vitlog 0:f9ba28ab9f4c 1 #include "ADS1259.h"
vitlog 0:f9ba28ab9f4c 2 #include "PGA280.h"
vitlog 0:f9ba28ab9f4c 3 #include <math.h>
vitlog 0:f9ba28ab9f4c 4
vitlog 0:f9ba28ab9f4c 5
vitlog 0:f9ba28ab9f4c 6 void ads1259_resetDevice ( unsigned char adr )
vitlog 0:f9ba28ab9f4c 7 {
vitlog 0:f9ba28ab9f4c 8 RESET = 1;
vitlog 0:f9ba28ab9f4c 9 }
vitlog 0:f9ba28ab9f4c 10
vitlog 0:f9ba28ab9f4c 11 void ads1259_powerDownDevice ( unsigned char adr )
vitlog 0:f9ba28ab9f4c 12 {
vitlog 0:f9ba28ab9f4c 13 pga280_setAdress ( adr );
vitlog 0:f9ba28ab9f4c 14 ADS1259_RESET = 0;
vitlog 0:f9ba28ab9f4c 15 //pga280_resetAdress ();
vitlog 0:f9ba28ab9f4c 16 }
vitlog 0:f9ba28ab9f4c 17
vitlog 0:f9ba28ab9f4c 18 void ads1259_powerUpDevice ( unsigned char adr )
vitlog 0:f9ba28ab9f4c 19 {
vitlog 0:f9ba28ab9f4c 20 pga280_setAdress ( adr );
vitlog 0:f9ba28ab9f4c 21 ADS1259_RESET = 1;
vitlog 0:f9ba28ab9f4c 22 //pga280_resetAdress ();
vitlog 0:f9ba28ab9f4c 23 }
vitlog 0:f9ba28ab9f4c 24
vitlog 0:f9ba28ab9f4c 25 void ads1259_conversionON ( unsigned char ch )
vitlog 0:f9ba28ab9f4c 26 {
vitlog 0:f9ba28ab9f4c 27 pga280_setGPIO ( 5, ch );
vitlog 0:f9ba28ab9f4c 28 }
vitlog 0:f9ba28ab9f4c 29
vitlog 0:f9ba28ab9f4c 30 void ads1259_conversionOFF ( unsigned char ch )
vitlog 0:f9ba28ab9f4c 31 {
vitlog 0:f9ba28ab9f4c 32 pga280_resetGPIO ( 5, ch);
vitlog 0:f9ba28ab9f4c 33 }
vitlog 0:f9ba28ab9f4c 34
vitlog 0:f9ba28ab9f4c 35 char ads1259_readyDevice ( unsigned char ch )
vitlog 0:f9ba28ab9f4c 36 /*Плохая функция проверки готовности устройства.
vitlog 0:f9ba28ab9f4c 37 Необходимо сделать прерывание, которое будт выставлять
vitlog 0:f9ba28ab9f4c 38 флаг или в котором будет происходить считывание*/
vitlog 0:f9ba28ab9f4c 39 {
vitlog 0:f9ba28ab9f4c 40 char tmp;
vitlog 0:f9ba28ab9f4c 41
vitlog 0:f9ba28ab9f4c 42 pga280_setAdress ( ch );
vitlog 0:f9ba28ab9f4c 43
vitlog 0:f9ba28ab9f4c 44 if ( ADS1259_RDYA == 0 )
vitlog 0:f9ba28ab9f4c 45 tmp = true;
vitlog 0:f9ba28ab9f4c 46 else
vitlog 0:f9ba28ab9f4c 47 tmp = false;
vitlog 0:f9ba28ab9f4c 48
vitlog 0:f9ba28ab9f4c 49 //pga280_resetAdress ();
vitlog 0:f9ba28ab9f4c 50
vitlog 0:f9ba28ab9f4c 51 return tmp;
vitlog 0:f9ba28ab9f4c 52 }
vitlog 0:f9ba28ab9f4c 53
vitlog 0:f9ba28ab9f4c 54 unsigned char ads1259_sendCommandDevice ( unsigned char command )
vitlog 0:f9ba28ab9f4c 55 {
vitlog 0:f9ba28ab9f4c 56 //ADS1259_CS = 0;
vitlog 0:f9ba28ab9f4c 57 SPI1MasterTransferByte ( command );
vitlog 0:f9ba28ab9f4c 58 //ADS1259_CS = 1;
vitlog 0:f9ba28ab9f4c 59 return true;
vitlog 0:f9ba28ab9f4c 60 }
vitlog 0:f9ba28ab9f4c 61
vitlog 0:f9ba28ab9f4c 62 void ads1259_setCsAndReset ( void )
vitlog 0:f9ba28ab9f4c 63 {
vitlog 0:f9ba28ab9f4c 64 //ADS1259_CS = 0;
vitlog 0:f9ba28ab9f4c 65 wait_ms ( 100 );
vitlog 0:f9ba28ab9f4c 66 //ADS1259_CS = 1;
vitlog 0:f9ba28ab9f4c 67 wait_ms ( 100 );
vitlog 0:f9ba28ab9f4c 68 }
vitlog 0:f9ba28ab9f4c 69
vitlog 0:f9ba28ab9f4c 70 unsigned long ads1259_readRegisterDevice ( unsigned char reg, unsigned char num_reg, unsigned char ch )
vitlog 0:f9ba28ab9f4c 71 /*Чтение количества регистров num_reg, начиная с текущего reg по адресу устройства ch*/
vitlog 0:f9ba28ab9f4c 72 {
vitlog 0:f9ba28ab9f4c 73 unsigned long out_value = 0;
vitlog 0:f9ba28ab9f4c 74
vitlog 0:f9ba28ab9f4c 75 uint32_t tmp[num_reg];
vitlog 0:f9ba28ab9f4c 76 unsigned char i;
vitlog 0:f9ba28ab9f4c 77
vitlog 0:f9ba28ab9f4c 78 if ( num_reg > 3 )
vitlog 0:f9ba28ab9f4c 79 num_reg = 3;
vitlog 0:f9ba28ab9f4c 80
vitlog 0:f9ba28ab9f4c 81 pga280_setGPIO ( 5, ch );
vitlog 0:f9ba28ab9f4c 82 //ADS1259_CS = 0;
vitlog 0:f9ba28ab9f4c 83 SPI1MasterTransferByte ( RREG_ADS1259 | reg );
vitlog 0:f9ba28ab9f4c 84 SPI1MasterTransferByte ( num_reg - 1 );
vitlog 0:f9ba28ab9f4c 85
vitlog 0:f9ba28ab9f4c 86 for ( i = 0; i < num_reg; i++ ) {
vitlog 0:f9ba28ab9f4c 87 tmp[i] = SPI1MasterTransferByte ( 0x00 );
vitlog 0:f9ba28ab9f4c 88 }
vitlog 0:f9ba28ab9f4c 89
vitlog 0:f9ba28ab9f4c 90 //ADS1259_CS = 1;
vitlog 0:f9ba28ab9f4c 91 pga280_resetGPIO ( 5, ch );
vitlog 0:f9ba28ab9f4c 92
vitlog 0:f9ba28ab9f4c 93 switch ( num_reg ) {
vitlog 0:f9ba28ab9f4c 94 case 1:
vitlog 0:f9ba28ab9f4c 95
vitlog 0:f9ba28ab9f4c 96 out_value = tmp[0];
vitlog 0:f9ba28ab9f4c 97 break;
vitlog 0:f9ba28ab9f4c 98
vitlog 0:f9ba28ab9f4c 99 case 2:
vitlog 0:f9ba28ab9f4c 100
vitlog 0:f9ba28ab9f4c 101 out_value = (tmp[0] << 8) | tmp[1];
vitlog 0:f9ba28ab9f4c 102 break;
vitlog 0:f9ba28ab9f4c 103
vitlog 0:f9ba28ab9f4c 104 case 3:
vitlog 0:f9ba28ab9f4c 105
vitlog 0:f9ba28ab9f4c 106 out_value = ((tmp[0] << 16) | tmp[1] << 8) | tmp[2];
vitlog 0:f9ba28ab9f4c 107 break;
vitlog 0:f9ba28ab9f4c 108
vitlog 0:f9ba28ab9f4c 109 default:
vitlog 0:f9ba28ab9f4c 110
vitlog 0:f9ba28ab9f4c 111 out_value = 0xFFFFFFFF;
vitlog 0:f9ba28ab9f4c 112 break;
vitlog 0:f9ba28ab9f4c 113 }
vitlog 0:f9ba28ab9f4c 114
vitlog 0:f9ba28ab9f4c 115 return out_value;
vitlog 0:f9ba28ab9f4c 116 }
vitlog 0:f9ba28ab9f4c 117
vitlog 0:f9ba28ab9f4c 118 unsigned char ads1259_readOneRegisterDevice ( unsigned char reg )
vitlog 0:f9ba28ab9f4c 119 {
vitlog 0:f9ba28ab9f4c 120 unsigned char out_value = 0;
vitlog 0:f9ba28ab9f4c 121 //ADS1259_CS = 0;
vitlog 0:f9ba28ab9f4c 122
vitlog 0:f9ba28ab9f4c 123 SPI1MasterTransferByte ( RREG_ADS1259 | reg );
vitlog 0:f9ba28ab9f4c 124 SPI1MasterTransferByte ( 0 );
vitlog 0:f9ba28ab9f4c 125 out_value = SPI1MasterReadByte ();
vitlog 0:f9ba28ab9f4c 126
vitlog 0:f9ba28ab9f4c 127 //ADS1259_CS = 1;
vitlog 0:f9ba28ab9f4c 128
vitlog 0:f9ba28ab9f4c 129 return out_value;
vitlog 0:f9ba28ab9f4c 130 }
vitlog 0:f9ba28ab9f4c 131
vitlog 0:f9ba28ab9f4c 132 void ads1259_writeOneRegisterDevice ( unsigned char reg, unsigned char data )
vitlog 0:f9ba28ab9f4c 133 {
vitlog 0:f9ba28ab9f4c 134 //ADS1259_CS = 0;
vitlog 0:f9ba28ab9f4c 135
vitlog 0:f9ba28ab9f4c 136 SPI1MasterTransferByte ( WREG_ADS1259 | reg );
vitlog 0:f9ba28ab9f4c 137 SPI1MasterTransferByte ( 0 );
vitlog 0:f9ba28ab9f4c 138 SPI1MasterTransferByte ( data );
vitlog 0:f9ba28ab9f4c 139
vitlog 0:f9ba28ab9f4c 140 //ADS1259_CS = 1;
vitlog 0:f9ba28ab9f4c 141 }
vitlog 0:f9ba28ab9f4c 142
vitlog 0:f9ba28ab9f4c 143 void ads1259_runReadDataContinuedModeDevice ( unsigned char ch )
vitlog 0:f9ba28ab9f4c 144 {
vitlog 0:f9ba28ab9f4c 145 ads1259_sendCommandDevice ( SDATAC_ADS1259 ); // ?????????? ????? ?????? ?????? ? ?????????? ??????
vitlog 0:f9ba28ab9f4c 146 ads1259_conversionON ( ch ); // ???????? ???
vitlog 0:f9ba28ab9f4c 147 ads1259_sendCommandDevice ( RDATAC_ADS1259 ); // ?????????? ??????? ??????? ???????? ?????? ? ?????????? ??????
vitlog 0:f9ba28ab9f4c 148 }
vitlog 0:f9ba28ab9f4c 149
vitlog 0:f9ba28ab9f4c 150 uint32_t ads1259_readDataDevice ( unsigned char ch )
vitlog 0:f9ba28ab9f4c 151 {
vitlog 0:f9ba28ab9f4c 152 uint32_t t_begin; // ????? ??????
vitlog 0:f9ba28ab9f4c 153 uint32_t t_end; // ????? ?????
vitlog 0:f9ba28ab9f4c 154 uint32_t t_current; // ??????? ????????
vitlog 0:f9ba28ab9f4c 155 uint32_t data_out = 0; // ???????? ??????
vitlog 0:f9ba28ab9f4c 156
vitlog 0:f9ba28ab9f4c 157 unsigned char data_ok; // ?????? ???????
vitlog 0:f9ba28ab9f4c 158
vitlog 0:f9ba28ab9f4c 159 uint32_t data[4];
vitlog 0:f9ba28ab9f4c 160
vitlog 0:f9ba28ab9f4c 161 ads1259_sendCommandDevice ( SDATAC_ADS1259 ); // ?????????? ????? ?????? ?????? ? ?????????? ??????
vitlog 0:f9ba28ab9f4c 162 ads1259_conversionON ( ch ); // ???????? ???
vitlog 0:f9ba28ab9f4c 163 ads1259_sendCommandDevice ( RDATA_ADS1259 ); // ?????????? ??????? ??????? ???????? ?????? ? ?????????? ??????
vitlog 0:f9ba28ab9f4c 164
vitlog 0:f9ba28ab9f4c 165 t_begin = 0;
vitlog 0:f9ba28ab9f4c 166
vitlog 0:f9ba28ab9f4c 167 do {
vitlog 0:f9ba28ab9f4c 168 if ( ads1259_readyDevice ( ch ) == true ) {
vitlog 0:f9ba28ab9f4c 169
vitlog 0:f9ba28ab9f4c 170 //ADS1259_CS = 0;
vitlog 0:f9ba28ab9f4c 171
vitlog 0:f9ba28ab9f4c 172 data[0] = SPI1MasterReadByte ();
vitlog 0:f9ba28ab9f4c 173 data[1] = SPI1MasterReadByte ();
vitlog 0:f9ba28ab9f4c 174 data[2] = SPI1MasterReadByte ();
vitlog 0:f9ba28ab9f4c 175
vitlog 0:f9ba28ab9f4c 176 //ADS1259_CS = 1;
vitlog 0:f9ba28ab9f4c 177
vitlog 0:f9ba28ab9f4c 178 data_ok = true;
vitlog 0:f9ba28ab9f4c 179 break;
vitlog 0:f9ba28ab9f4c 180
vitlog 0:f9ba28ab9f4c 181 } else {
vitlog 0:f9ba28ab9f4c 182 data_ok = false;
vitlog 0:f9ba28ab9f4c 183 }
vitlog 0:f9ba28ab9f4c 184
vitlog 0:f9ba28ab9f4c 185 t_end++;
vitlog 0:f9ba28ab9f4c 186 t_current = t_end - t_begin;
vitlog 0:f9ba28ab9f4c 187
vitlog 0:f9ba28ab9f4c 188 } while ( t_current < TIMEOUT );
vitlog 0:f9ba28ab9f4c 189
vitlog 0:f9ba28ab9f4c 190 if ( data_ok ) {
vitlog 0:f9ba28ab9f4c 191 data_out += (data[0] & 0xFF) << 16;
vitlog 0:f9ba28ab9f4c 192 data_out += (data[1] & 0xFF) << 8;
vitlog 0:f9ba28ab9f4c 193 data_out += (data[2] & 0xFF);
vitlog 0:f9ba28ab9f4c 194 } else {
vitlog 0:f9ba28ab9f4c 195 data_out = 0xFFFFFF;
vitlog 0:f9ba28ab9f4c 196 }
vitlog 0:f9ba28ab9f4c 197
vitlog 0:f9ba28ab9f4c 198 ads1259_conversionOFF ( ch ); // ????????? ???
vitlog 0:f9ba28ab9f4c 199
vitlog 0:f9ba28ab9f4c 200 return data_out;
vitlog 0:f9ba28ab9f4c 201 }
vitlog 0:f9ba28ab9f4c 202
vitlog 0:f9ba28ab9f4c 203 /* *****************************************************************************
vitlog 0:f9ba28ab9f4c 204 End of File
vitlog 0:f9ba28ab9f4c 205 */