MSS / Mbed 2 deprecated test_MAX30101

Test program for MAX30101 Barely working.

Dependencies:   MAX30101 mbed vt100

main.cpp@1:fd8bee9b3647, 2017-03-27 (annotated)

Committer:
Rhyme
Date:
Mon Mar 27 07:31:21 2017 +0000
Revision:
1:fd8bee9b3647
Parent:
0:74347dd8a032
Child:
3:f3d19ad49aee
Test for MAX30101 barely working

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rhyme 0:74347dd8a032 1 #include "mbed.h"
Rhyme 0:74347dd8a032 2 #include "vt100.h"
Rhyme 0:74347dd8a032 3 #include "MSS.h"
Rhyme 0:74347dd8a032 4 #include "MAX30101.h"
Rhyme 0:74347dd8a032 5 /**
Rhyme 0:74347dd8a032 6 * MAX30101 I2C addresss
Rhyme 0:74347dd8a032 7 * Write 0xAE 0b1010_1110
Rhyme 0:74347dd8a032 8 * Read 0xAF 0b1010_1111
Rhyme 0:74347dd8a032 9 * 7bit address = 0b101_0111 = 0x57
Rhyme 0:74347dd8a032 10 */
Rhyme 0:74347dd8a032 11 #define MAX30101_I2C_ADDRESS (0x57)
Rhyme 0:74347dd8a032 12
Rhyme 0:74347dd8a032 13 #ifndef FIFO_DEPTH
Rhyme 0:74347dd8a032 14 #define FIFO_DEPTH 32
Rhyme 0:74347dd8a032 15 #endif
Rhyme 0:74347dd8a032 16
Rhyme 0:74347dd8a032 17 vt100 *tty = 0 ;
Rhyme 0:74347dd8a032 18 MAX30101 *max30101 = 0 ;
Rhyme 0:74347dd8a032 19 InterruptIn *int0 ;
Rhyme 0:74347dd8a032 20
Rhyme 0:74347dd8a032 21 void initSPO2(void)
Rhyme 0:74347dd8a032 22 {
Rhyme 0:74347dd8a032 23 uint8_t config_byte = 0 ;
Rhyme 0:74347dd8a032 24 uint16_t slot_config = 0 ;
Rhyme 0:74347dd8a032 25
Rhyme 0:74347dd8a032 26 /* config for SPO2 (0x0A) */
Rhyme 0:74347dd8a032 27 config_byte =
Rhyme 0:74347dd8a032 28 (0x01 << 5) /* SPO2_ADC_RGE */
Rhyme 0:74347dd8a032 29 // | (0x05 << 3) /* SPO2_SR 101 = 1000 samples/sec */
Rhyme 0:74347dd8a032 30 | (0x00 << 3) /* SPO2_SR 000 = 50 samples/sec */
Rhyme 0:74347dd8a032 31 | (0x00) /* LED_PW 00 = 69us */
Rhyme 0:74347dd8a032 32 ;
Rhyme 0:74347dd8a032 33 max30101->setSPO2_CONFIG(config_byte) ;
Rhyme 0:74347dd8a032 34
Rhyme 0:74347dd8a032 35 /* slot configuration */
Rhyme 0:74347dd8a032 36 slot_config =
Rhyme 0:74347dd8a032 37 (0x02 << 12) /* SLOT2 LED2(IR) */
Rhyme 0:74347dd8a032 38 | (0x01 << 8) /* SLOT1 LED1(RED) */
Rhyme 0:74347dd8a032 39 | (0x00 << 4) /* SLOT4 none */
Rhyme 0:74347dd8a032 40 | (0x00) /* SLOT3 none */
Rhyme 0:74347dd8a032 41 ;
Rhyme 0:74347dd8a032 42 max30101->setSLOT(slot_config) ;
Rhyme 0:74347dd8a032 43
Rhyme 0:74347dd8a032 44 /* Inititalize FIFO */
Rhyme 0:74347dd8a032 45 /* config for FIFO Configuration (0x08) */
Rhyme 0:74347dd8a032 46 config_byte =
Rhyme 0:74347dd8a032 47 (0x02 << 5) /* SMP_AVE = 2 -> avarage of 4 data */
Rhyme 0:74347dd8a032 48 | (0x01 << 4) /* FIFO_ROLLOVER_EN = 1 */
Rhyme 0:74347dd8a032 49 // | (0x0C) /* FIFO ALMOST FULL at 12 (0x0C) */
Rhyme 0:74347dd8a032 50 | (0x09) /* FIFO ALMOST FULL at 9 */
Rhyme 0:74347dd8a032 51 ;
Rhyme 0:74347dd8a032 52 max30101->setFIFO_CONFIG(config_byte) ;
Rhyme 0:74347dd8a032 53
Rhyme 0:74347dd8a032 54
Rhyme 0:74347dd8a032 55 }
Rhyme 0:74347dd8a032 56
Rhyme 0:74347dd8a032 57 void readSPO2_FIFO(void)
Rhyme 0:74347dd8a032 58 {
Rhyme 0:74347dd8a032 59 uint32_t data[2] ;
Rhyme 0:74347dd8a032 60 uint8_t fifo_wr_ptr, fifo_rd_ptr ;
Rhyme 0:74347dd8a032 61 int num_available_samples = 0 ;
Rhyme 0:74347dd8a032 62 int num_samples_to_read = 6 ;
Rhyme 0:74347dd8a032 63 int i ;
Rhyme 0:74347dd8a032 64
Rhyme 0:74347dd8a032 65 fifo_wr_ptr = max30101->getFIFO_WR_PTR() ;
Rhyme 0:74347dd8a032 66 fifo_rd_ptr = max30101->getFIFO_RD_PTR() ;
Rhyme 0:74347dd8a032 67 num_available_samples = (fifo_wr_ptr + FIFO_DEPTH - fifo_rd_ptr) % FIFO_DEPTH ;
Rhyme 0:74347dd8a032 68
Rhyme 0:74347dd8a032 69 if (num_available_samples < num_samples_to_read) {
Rhyme 0:74347dd8a032 70 num_samples_to_read = num_available_samples / 2 ;
Rhyme 0:74347dd8a032 71 } else {
Rhyme 0:74347dd8a032 72 num_samples_to_read = num_available_samples ;
Rhyme 0:74347dd8a032 73 }
Rhyme 0:74347dd8a032 74 printf("=== %d data %d to read===\n",
Rhyme 0:74347dd8a032 75 num_available_samples, num_samples_to_read) ;
Rhyme 0:74347dd8a032 76 for (i = 0 ; i < num_samples_to_read ; i++ ) {
Rhyme 0:74347dd8a032 77 data[0] = max30101->readFIFO() ; /* LED1 */
Rhyme 0:74347dd8a032 78 data[1] = max30101->readFIFO() ; /* IR */
Rhyme 0:74347dd8a032 79 // printf("LED1: 0x%05X, IR: 0x%05X\n", data[0], data[1]) ;
Rhyme 0:74347dd8a032 80 }
Rhyme 0:74347dd8a032 81 // max30101->setFIFO_WR_PTR(0) ;
Rhyme 0:74347dd8a032 82 // max30101->setFIFO_RD_PTR(0) ;
Rhyme 0:74347dd8a032 83 }
Rhyme 0:74347dd8a032 84
Rhyme 0:74347dd8a032 85 void SPO2_isr(void)
Rhyme 0:74347dd8a032 86 {
Rhyme 0:74347dd8a032 87 uint16_t flag, config ;
Rhyme 0:74347dd8a032 88 float temp ;
Rhyme 0:74347dd8a032 89 int temp_int, temp_frac ;
Rhyme 0:74347dd8a032 90
Rhyme 0:74347dd8a032 91 flag = max30101->getIntStatus() ;
Rhyme 0:74347dd8a032 92 config = max30101->getIntEnable() ;
Rhyme 0:74347dd8a032 93 // printf("Int: 0x%04X Enable: 0x%04X\n", flag, config) ;
Rhyme 0:74347dd8a032 94 if (flag & INT_ST_A_FULL) { /* A_FULL_EN */
Rhyme 0:74347dd8a032 95 // printf("FIFO almost full!\n") ;
Rhyme 0:74347dd8a032 96 readSPO2_FIFO() ;
Rhyme 0:74347dd8a032 97 }
Rhyme 0:74347dd8a032 98 if (flag & INT_ST_PPG_RGY) { /* New FIFO Data Ready */
Rhyme 0:74347dd8a032 99 printf("New FIFO Data Ready\n") ;
Rhyme 0:74347dd8a032 100 }
Rhyme 0:74347dd8a032 101 if (flag & INT_ST_ALC_OVF) { /* Ambient Light Cancellaration Overflow */
Rhyme 0:74347dd8a032 102 printf("Ambient Light Cancellaration Overflow\n") ;
Rhyme 0:74347dd8a032 103 }
Rhyme 0:74347dd8a032 104 if (flag & INT_ST_PROX_INT) {/* Proximity Threshold Triggered */
Rhyme 0:74347dd8a032 105 printf("Proximity Threshold Triggered\n") ;
Rhyme 0:74347dd8a032 106 }
Rhyme 0:74347dd8a032 107 if (flag & INT_ST_PWR_RDY) {/* Power Ready Flag */
Rhyme 0:74347dd8a032 108 printf("Power Ready!\n") ;
Rhyme 0:74347dd8a032 109 }
Rhyme 0:74347dd8a032 110 if (flag & INT_ST_DIE_TEMP_RDY) {/* Internal Temperature Ready Flag */
Rhyme 0:74347dd8a032 111 printf("DIE Temperature Ready!\n") ;
Rhyme 0:74347dd8a032 112 temp_int = max30101->getTEMP_INT() ;
Rhyme 0:74347dd8a032 113 temp_frac = max30101->getTEMP_FRAC() ;
Rhyme 0:74347dd8a032 114 temp = ((float)temp_int)+(((float)temp_frac)/16.0) ;
Rhyme 0:74347dd8a032 115 printf("Temp: %.2f\n", temp) ;
Rhyme 0:74347dd8a032 116 }
Rhyme 0:74347dd8a032 117 }
Rhyme 0:74347dd8a032 118
Rhyme 0:74347dd8a032 119 void doSPO2(void)
Rhyme 0:74347dd8a032 120 {
Rhyme 0:74347dd8a032 121 uint8_t config_byte = 0 ;
Rhyme 0:74347dd8a032 122 uint16_t slot_config = 0 ;
Rhyme 0:74347dd8a032 123 uint16_t init_config = 0 ;
Rhyme 0:74347dd8a032 124
Rhyme 0:74347dd8a032 125 int0->fall(&SPO2_isr) ;
Rhyme 0:74347dd8a032 126 /* Enter into SpO2 Mode. Initiate a Temperature measurement */
Rhyme 0:74347dd8a032 127 /* I2C Write Command sets MODE[2:0] = 0x03 */
Rhyme 0:74347dd8a032 128 config_byte = 0x03 ; /* SpO2 mode */
Rhyme 0:74347dd8a032 129 max30101->setMODE_CONFIG(config_byte) ;
Rhyme 0:74347dd8a032 130
Rhyme 0:74347dd8a032 131 /* Mask the SPO2_RDY Interrupt */
Rhyme 0:74347dd8a032 132 /* Temperature Measurement Complete, Interrupt Generated */
Rhyme 0:74347dd8a032 133 /* TEMP_RDY interrupt triggers */
Rhyme 0:74347dd8a032 134 /* alerting the central to read the data */
Rhyme 0:74347dd8a032 135 /* Temp Data is Read, Interrupt Cleared */
Rhyme 0:74347dd8a032 136 /* FIFO is Almost Full, Interrupt Generated */
Rhyme 0:74347dd8a032 137 /* FIFO Data is read, Interrupt Cleared */
Rhyme 0:74347dd8a032 138 /* Next Sample is Stored. */
Rhyme 0:74347dd8a032 139
Rhyme 0:74347dd8a032 140 }
Rhyme 0:74347dd8a032 141
Rhyme 0:74347dd8a032 142 void initHR(void)
Rhyme 0:74347dd8a032 143 {
Rhyme 0:74347dd8a032 144
Rhyme 0:74347dd8a032 145 }
Rhyme 0:74347dd8a032 146
Rhyme 0:74347dd8a032 147 void init(void)
Rhyme 0:74347dd8a032 148 {
Rhyme 0:74347dd8a032 149 uint32_t slot_config = 0 ;
Rhyme 0:74347dd8a032 150 uint8_t mode ;
Rhyme 0:74347dd8a032 151 int0 = new InterruptIn(PIN_INT1) ;
Rhyme 0:74347dd8a032 152 tty = new vt100() ;
Rhyme 0:74347dd8a032 153 tty->cls() ;
Rhyme 0:74347dd8a032 154 max30101 = new MAX30101(PIN_SDA, PIN_SCL, MAX30101_I2C_ADDRESS) ;
Rhyme 0:74347dd8a032 155 max30101->reset() ;
Rhyme 0:74347dd8a032 156
Rhyme 0:74347dd8a032 157 /* config for Mode Configuration (0x09) */
Rhyme 0:74347dd8a032 158
Rhyme 0:74347dd8a032 159 mode = 0x07 ; /* Green, Red, and/or IR */
Rhyme 0:74347dd8a032 160 // mode = 0x03 ; /* SpO2 mode */
Rhyme 0:74347dd8a032 161 max30101->setMODE_CONFIG(mode) ;
Rhyme 0:74347dd8a032 162
Rhyme 0:74347dd8a032 163 /* config for FIFO Configuration (0x08) */
Rhyme 0:74347dd8a032 164 mode =
Rhyme 0:74347dd8a032 165 // (0x02 << 5) /* SMP_AVE = 2 -> avarage of 4 data */
Rhyme 0:74347dd8a032 166 (0x05 << 5) /* SMP_AVE = 5 -> avarage of 32 data */
Rhyme 0:74347dd8a032 167 // | (0x01 << 4) /* FIFO_ROLLOVER_EN = 1 */
Rhyme 0:74347dd8a032 168 | (0x00 << 4) /* FIFO_ROLLOVER_EN = 0 */
Rhyme 0:74347dd8a032 169 | (0x0C) /* FIFO ALMOST FULL at 12 (0x0C) */
Rhyme 0:74347dd8a032 170 ;
Rhyme 0:74347dd8a032 171 max30101->setFIFO_CONFIG(mode) ;
Rhyme 0:74347dd8a032 172
Rhyme 0:74347dd8a032 173 max30101->setLED1_PA(0x80) ;
Rhyme 0:74347dd8a032 174 max30101->setLED2_PA(0x80) ;
Rhyme 0:74347dd8a032 175 // max30101->setLED3_PA(0x80) ;
Rhyme 0:74347dd8a032 176 // max30101->setPILOT_PA(0x80) ;
Rhyme 0:74347dd8a032 177 #if 0
Rhyme 0:74347dd8a032 178 slot_config =
Rhyme 0:74347dd8a032 179 (0x02 << 24) /* SLOT2 LED2(IR) */
Rhyme 0:74347dd8a032 180 | (0x01 << 16) /* SLOT1 LED1(RED) */
Rhyme 0:74347dd8a032 181 | (0x00 << 8) /* SLOT4 none */
Rhyme 0:74347dd8a032 182 | (0x03) /* SLOT3 LED3(GREEN) */
Rhyme 0:74347dd8a032 183 ;
Rhyme 0:74347dd8a032 184 max30101->setSLOT(slot_config) ;
Rhyme 0:74347dd8a032 185 #endif
Rhyme 0:74347dd8a032 186 mode = 0x01 ;
Rhyme 0:74347dd8a032 187 max30101->setPROX_INT_THR(mode) ;
Rhyme 0:74347dd8a032 188
Rhyme 0:74347dd8a032 189 // max30101->setIntEnable(0xF002) ;
Rhyme 0:74347dd8a032 190
Rhyme 0:74347dd8a032 191
Rhyme 0:74347dd8a032 192 }
Rhyme 0:74347dd8a032 193
Rhyme 0:74347dd8a032 194 void reportID(void)
Rhyme 0:74347dd8a032 195 {
Rhyme 0:74347dd8a032 196 uint8_t id, rev ;
Rhyme 0:74347dd8a032 197 id = max30101->getID() ;
Rhyme 0:74347dd8a032 198 rev = max30101->getRev() ;
Rhyme 0:74347dd8a032 199 printf("MAX30101 ID: 0x%02X, Rev: 0x%02X\n", id, rev) ;
Rhyme 0:74347dd8a032 200 }
Rhyme 0:74347dd8a032 201
Rhyme 0:74347dd8a032 202
Rhyme 0:74347dd8a032 203 /* data read test following the pseudo code
Rhyme 0:74347dd8a032 204 * written in the datasheet
Rhyme 0:74347dd8a032 205 */
Rhyme 0:74347dd8a032 206 void doPseudo(void)
Rhyme 0:74347dd8a032 207 {
Rhyme 0:74347dd8a032 208 uint32_t data[3] ;
Rhyme 0:74347dd8a032 209 uint8_t fifo_wr_ptr, fifo_rd_ptr ;
Rhyme 0:74347dd8a032 210 int num_available_samples = 0 ;
Rhyme 0:74347dd8a032 211 // int num_samples_to_read = 0 ;
Rhyme 0:74347dd8a032 212 int i ;
Rhyme 0:74347dd8a032 213
Rhyme 0:74347dd8a032 214 fifo_wr_ptr = max30101->getFIFO_WR_PTR() ;
Rhyme 0:74347dd8a032 215 fifo_rd_ptr = max30101->getFIFO_RD_PTR() ;
Rhyme 0:74347dd8a032 216 num_available_samples = (fifo_wr_ptr + FIFO_DEPTH - fifo_rd_ptr) % FIFO_DEPTH ;
Rhyme 0:74347dd8a032 217 printf("=== %d data ===\n", num_available_samples) ;
Rhyme 0:74347dd8a032 218 for (i = 0 ; i < num_available_samples ; i++ ) {
Rhyme 0:74347dd8a032 219 data[0] = max30101->readFIFO() ; /* LED1 */
Rhyme 0:74347dd8a032 220 data[1] = max30101->readFIFO() ; /* LED2 */
Rhyme 0:74347dd8a032 221 data[2] = max30101->readFIFO() ; /* LED3 */
Rhyme 0:74347dd8a032 222 printf("LED1: 0x%05X, LED2: 0x%05X, LED3: 0x%05X\n",
Rhyme 0:74347dd8a032 223 data[0], data[1], data[2]) ;
Rhyme 0:74347dd8a032 224 }
Rhyme 0:74347dd8a032 225 }
Rhyme 0:74347dd8a032 226
Rhyme 0:74347dd8a032 227 void doInt(void)
Rhyme 0:74347dd8a032 228 {
Rhyme 0:74347dd8a032 229 uint16_t flag ;
Rhyme 0:74347dd8a032 230 flag = max30101->getIntStatus() ;
Rhyme 0:74347dd8a032 231 printf("Int: 0x%04X\n", flag) ;
Rhyme 0:74347dd8a032 232 if (flag & INT_ST_A_FULL) { /* A_FULL_EN */
Rhyme 0:74347dd8a032 233 printf("FIFO almost full!\n") ;
Rhyme 0:74347dd8a032 234 }
Rhyme 0:74347dd8a032 235 if (flag & INT_ST_PPG_RGY) { /* New FIFO Data Ready */
Rhyme 0:74347dd8a032 236 doPseudo() ;
Rhyme 0:74347dd8a032 237 }
Rhyme 0:74347dd8a032 238 if (flag & INT_ST_ALC_OVF) { /* Ambient Light Cancellaration Overflow */
Rhyme 0:74347dd8a032 239 printf("Ambient Light Cancellaration Overflow\n") ;
Rhyme 0:74347dd8a032 240 }
Rhyme 0:74347dd8a032 241 if (flag & INT_ST_PROX_INT) {/* Proximity Threshold Triggered */
Rhyme 0:74347dd8a032 242 doPseudo() ;
Rhyme 0:74347dd8a032 243 }
Rhyme 0:74347dd8a032 244 if (flag & INT_ST_PWR_RDY) {/* Power Ready Flag */
Rhyme 0:74347dd8a032 245 printf("Power Ready!\n") ;
Rhyme 0:74347dd8a032 246 }
Rhyme 0:74347dd8a032 247 if (flag & INT_ST_DIE_TEMP_RDY) {/* Internal Temperature Ready Flag */
Rhyme 0:74347dd8a032 248 printf("DIE Temperature Ready!\n") ;
Rhyme 0:74347dd8a032 249 }
Rhyme 0:74347dd8a032 250 max30101->setIntEnable(0xE002) ;
Rhyme 0:74347dd8a032 251 }
Rhyme 0:74347dd8a032 252
Rhyme 0:74347dd8a032 253 void doHR(void)
Rhyme 0:74347dd8a032 254 {
Rhyme 0:74347dd8a032 255 }
Rhyme 0:74347dd8a032 256
Rhyme 0:74347dd8a032 257 int main() {
Rhyme 0:74347dd8a032 258 uint16_t int_config = 0 ;
Rhyme 0:74347dd8a032 259 uint8_t flag = 0 ;
Rhyme 0:74347dd8a032 260 float temp = 0.0 ;
Rhyme 0:74347dd8a032 261
Rhyme 0:74347dd8a032 262 init() ;
Rhyme 0:74347dd8a032 263
Rhyme 0:74347dd8a032 264 printf("%s : %s\n", BOARD_NAME, __DATE__) ;
Rhyme 0:74347dd8a032 265 reportID() ;
Rhyme 0:74347dd8a032 266
Rhyme 0:74347dd8a032 267 initSPO2() ;
Rhyme 0:74347dd8a032 268 int0->fall(&SPO2_isr) ;
Rhyme 0:74347dd8a032 269 max30101->setMODE_CONFIG(MODE_SPO2) ;
Rhyme 0:74347dd8a032 270 max30101->setIntEnable( INT_EN_A_FULL | INT_EN_DIE_TEMP_RDY ) ;
Rhyme 0:74347dd8a032 271 int_config = max30101->getIntEnable() ;
Rhyme 0:74347dd8a032 272 printf("Int enable: 0x%04X\n", int_config) ;
Rhyme 0:74347dd8a032 273 flag = max30101->getIntStatus() ;
Rhyme 0:74347dd8a032 274
Rhyme 0:74347dd8a032 275 while(1) {
Rhyme 0:74347dd8a032 276 max30101->setTEMP_EN() ; /* trigger temperature read */
Rhyme 1:fd8bee9b3647 277 temp = max30101->getTEMP() ;
Rhyme 1:fd8bee9b3647 278 flag = max30101->getIntStatus() ;
Rhyme 1:fd8bee9b3647 279 printf("Temp = %.2f interrupt flags = 0x%02X\n", temp, flag) ;
Rhyme 0:74347dd8a032 280 wait(1) ;
Rhyme 0:74347dd8a032 281 }
Rhyme 0:74347dd8a032 282 }