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Test2
Dependencies: MAX30003 max32630fthr DS1307
main.cpp@1:86843c27cc81, 2017-08-17 (annotated)
- Committer:
- coreyharris
- Date:
- Thu Aug 17 19:56:40 2017 +0000
- Revision:
- 1:86843c27cc81
- Parent:
- 0:38c49bc37c7c
- Child:
- 2:812d40f1853d
Updated demo to include ETAG monitoring;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
coreyharris | 0:38c49bc37c7c | 1 | #include "mbed.h" |
coreyharris | 0:38c49bc37c7c | 2 | #include "max32630fthr.h" |
coreyharris | 0:38c49bc37c7c | 3 | #include "MAX30003.h" |
coreyharris | 0:38c49bc37c7c | 4 | |
coreyharris | 0:38c49bc37c7c | 5 | MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3); |
coreyharris | 0:38c49bc37c7c | 6 | |
coreyharris | 0:38c49bc37c7c | 7 | void ecg_config(MAX30003 &ecgAFE); |
coreyharris | 0:38c49bc37c7c | 8 | |
coreyharris | 0:38c49bc37c7c | 9 | /* ECG FIFO nearly full callback */ |
coreyharris | 0:38c49bc37c7c | 10 | volatile bool ecgFIFOIntFlag = 0; |
coreyharris | 0:38c49bc37c7c | 11 | void ecgFIFO_callback() { |
coreyharris | 0:38c49bc37c7c | 12 | |
coreyharris | 0:38c49bc37c7c | 13 | ecgFIFOIntFlag = 1; |
coreyharris | 0:38c49bc37c7c | 14 | |
coreyharris | 0:38c49bc37c7c | 15 | } |
coreyharris | 0:38c49bc37c7c | 16 | |
coreyharris | 0:38c49bc37c7c | 17 | int main() |
coreyharris | 0:38c49bc37c7c | 18 | { |
coreyharris | 1:86843c27cc81 | 19 | Serial pc(USBTX, USBRX); // Use USB debug probe for serial link |
coreyharris | 1:86843c27cc81 | 20 | pc.baud(115200); // Baud rate = 115200 |
coreyharris | 1:86843c27cc81 | 21 | |
coreyharris | 1:86843c27cc81 | 22 | DigitalOut rLed(LED1, LED_OFF); // Debug LEDs |
coreyharris | 0:38c49bc37c7c | 23 | DigitalOut gLed(LED2, LED_OFF); |
coreyharris | 0:38c49bc37c7c | 24 | DigitalOut bLed(LED3, LED_OFF); |
coreyharris | 0:38c49bc37c7c | 25 | |
coreyharris | 1:86843c27cc81 | 26 | InterruptIn ecgFIFO_int(P5_4); // Config P5_4 as int. in for the |
coreyharris | 1:86843c27cc81 | 27 | ecgFIFO_int.fall(&ecgFIFO_callback); // ecg FIFO almost full interrupt |
coreyharris | 0:38c49bc37c7c | 28 | |
coreyharris | 1:86843c27cc81 | 29 | SPI spiBus(SPI2_MOSI, SPI2_MISO, SPI2_SCK); // SPI bus, P5_1 = MOSI, |
coreyharris | 1:86843c27cc81 | 30 | // P5_2 = MISO, P5_0 = SCK |
coreyharris | 0:38c49bc37c7c | 31 | |
coreyharris | 0:38c49bc37c7c | 32 | MAX30003 *ecgAFE; |
coreyharris | 1:86843c27cc81 | 33 | ecgAFE = new MAX30003(spiBus, P5_3); // New MAX30003 on spiBus, CS = P5_3 |
coreyharris | 1:86843c27cc81 | 34 | ecg_config(*ecgAFE); // Config ECG |
coreyharris | 1:86843c27cc81 | 35 | |
coreyharris | 0:38c49bc37c7c | 36 | |
coreyharris | 1:86843c27cc81 | 37 | ecgAFE->writeRegister( MAX30003::SYNCH , 0); |
coreyharris | 0:38c49bc37c7c | 38 | |
coreyharris | 1:86843c27cc81 | 39 | uint32_t ecgFIFO, readSamples, idx, ETAG[32]; |
coreyharris | 1:86843c27cc81 | 40 | int16_t ecgSample[32]; |
coreyharris | 1:86843c27cc81 | 41 | while(1) { |
coreyharris | 1:86843c27cc81 | 42 | |
coreyharris | 1:86843c27cc81 | 43 | bLed = LED_ON; |
coreyharris | 1:86843c27cc81 | 44 | |
coreyharris | 0:38c49bc37c7c | 45 | /* Read back ECG samples from the FIFO */ |
coreyharris | 0:38c49bc37c7c | 46 | if( ecgFIFOIntFlag ) { |
coreyharris | 1:86843c27cc81 | 47 | pc.printf("Interrupt received....\r\n\r\n"); |
coreyharris | 1:86843c27cc81 | 48 | bLed = LED_OFF; |
coreyharris | 1:86843c27cc81 | 49 | ecgFIFOIntFlag = 0; // Clear interrupt flag |
coreyharris | 1:86843c27cc81 | 50 | readSamples = 0; // Reset sample counter |
coreyharris | 1:86843c27cc81 | 51 | do { |
coreyharris | 1:86843c27cc81 | 52 | ecgFIFO = ecgAFE->readRegister( MAX30003::ECG_FIFO ); // Read FIFO |
coreyharris | 1:86843c27cc81 | 53 | ecgSample[readSamples] = ecgFIFO >> 8; // Isolate voltage data |
coreyharris | 1:86843c27cc81 | 54 | ETAG[readSamples] = ( ecgFIFO >> 3 ) & 0b111; // Isolate ETAG |
coreyharris | 1:86843c27cc81 | 55 | readSamples++; // Increment sample counter |
coreyharris | 1:86843c27cc81 | 56 | } while ( ETAG[readSamples-1] == 0x0 || ETAG[readSamples-1] == 0x1 ); // Check that sample is valid |
coreyharris | 1:86843c27cc81 | 57 | |
coreyharris | 1:86843c27cc81 | 58 | pc.printf("%d samples read from FIFO \r\n", readSamples); |
coreyharris | 1:86843c27cc81 | 59 | |
coreyharris | 1:86843c27cc81 | 60 | for( idx = 0; idx < readSamples; idx++ ) { |
coreyharris | 1:86843c27cc81 | 61 | pc.printf("Sample : %6d, \tETAG : 0x%x\r\n", ecgSample[idx], ETAG[idx]); |
coreyharris | 0:38c49bc37c7c | 62 | } |
coreyharris | 1:86843c27cc81 | 63 | |
coreyharris | 1:86843c27cc81 | 64 | pc.printf("\r\n\r\n\r\n"); |
coreyharris | 1:86843c27cc81 | 65 | |
coreyharris | 0:38c49bc37c7c | 66 | } |
coreyharris | 1:86843c27cc81 | 67 | |
coreyharris | 0:38c49bc37c7c | 68 | } |
coreyharris | 0:38c49bc37c7c | 69 | } |
coreyharris | 0:38c49bc37c7c | 70 | |
coreyharris | 0:38c49bc37c7c | 71 | |
coreyharris | 0:38c49bc37c7c | 72 | |
coreyharris | 0:38c49bc37c7c | 73 | |
coreyharris | 0:38c49bc37c7c | 74 | void ecg_config(MAX30003& ecgAFE) { |
coreyharris | 0:38c49bc37c7c | 75 | |
coreyharris | 1:86843c27cc81 | 76 | // Reset ECG to clear registers |
coreyharris | 1:86843c27cc81 | 77 | ecgAFE.writeRegister( MAX30003::SW_RST , 0); |
coreyharris | 0:38c49bc37c7c | 78 | |
coreyharris | 0:38c49bc37c7c | 79 | |
coreyharris | 0:38c49bc37c7c | 80 | |
coreyharris | 1:86843c27cc81 | 81 | // General config register setting |
coreyharris | 1:86843c27cc81 | 82 | MAX30003::GeneralConfiguration_u CNFG_GEN_r; |
coreyharris | 1:86843c27cc81 | 83 | CNFG_GEN_r.bits.en_ecg = 1; |
coreyharris | 1:86843c27cc81 | 84 | CNFG_GEN_r.bits.rbiasn = 1; |
coreyharris | 1:86843c27cc81 | 85 | CNFG_GEN_r.bits.rbiasp = 1; |
coreyharris | 1:86843c27cc81 | 86 | CNFG_GEN_r.bits.en_rbias = 1; |
coreyharris | 1:86843c27cc81 | 87 | CNFG_GEN_r.bits.imag = 2; |
coreyharris | 1:86843c27cc81 | 88 | CNFG_GEN_r.bits.en_dcloff = 1; |
coreyharris | 1:86843c27cc81 | 89 | ecgAFE.writeRegister( MAX30003::CNFG_GEN , CNFG_GEN_r.all); |
coreyharris | 1:86843c27cc81 | 90 | |
coreyharris | 1:86843c27cc81 | 91 | |
coreyharris | 1:86843c27cc81 | 92 | // ECG Config register setting |
coreyharris | 1:86843c27cc81 | 93 | MAX30003::ECGConfiguration_u CNFG_ECG_r; |
coreyharris | 1:86843c27cc81 | 94 | CNFG_ECG_r.bits.dlpf = 1; |
coreyharris | 1:86843c27cc81 | 95 | CNFG_ECG_r.bits.dhpf = 1; |
coreyharris | 1:86843c27cc81 | 96 | CNFG_ECG_r.bits.gain = 3; |
coreyharris | 1:86843c27cc81 | 97 | CNFG_ECG_r.bits.rate = 3; |
coreyharris | 1:86843c27cc81 | 98 | ecgAFE.writeRegister( MAX30003::CNFG_ECG , CNFG_ECG_r.all); |
coreyharris | 1:86843c27cc81 | 99 | |
coreyharris | 1:86843c27cc81 | 100 | |
coreyharris | 1:86843c27cc81 | 101 | //R-to-R configuration |
coreyharris | 1:86843c27cc81 | 102 | MAX30003::RtoR1Configuration_u CNFG_RTOR_r; |
coreyharris | 1:86843c27cc81 | 103 | CNFG_RTOR_r.bits.en_rtor = 1; |
coreyharris | 1:86843c27cc81 | 104 | ecgAFE.writeRegister( MAX30003::CNFG_RTOR1 , CNFG_RTOR_r.all); |
coreyharris | 1:86843c27cc81 | 105 | |
coreyharris | 1:86843c27cc81 | 106 | |
coreyharris | 1:86843c27cc81 | 107 | //Manage interrupts register setting |
coreyharris | 1:86843c27cc81 | 108 | MAX30003::ManageInterrupts_u MNG_INT_r; |
coreyharris | 1:86843c27cc81 | 109 | MNG_INT_r.bits.efit = 0b00011; |
coreyharris | 1:86843c27cc81 | 110 | ecgAFE.writeRegister( MAX30003::MNGR_INT , MNG_INT_r.all); |
coreyharris | 0:38c49bc37c7c | 111 | |
coreyharris | 0:38c49bc37c7c | 112 | |
coreyharris | 1:86843c27cc81 | 113 | //Enable interrupts register setting |
coreyharris | 1:86843c27cc81 | 114 | MAX30003::EnableInterrupts_u EN_INT_r; |
coreyharris | 1:86843c27cc81 | 115 | EN_INT_r.all = 0; |
coreyharris | 1:86843c27cc81 | 116 | EN_INT_r.bits.en_eint = 1; |
coreyharris | 1:86843c27cc81 | 117 | EN_INT_r.bits.intb_type = 0b11; |
coreyharris | 1:86843c27cc81 | 118 | ecgAFE.writeRegister( MAX30003::EN_INT , EN_INT_r.all); |
coreyharris | 1:86843c27cc81 | 119 | |
coreyharris | 1:86843c27cc81 | 120 | |
coreyharris | 1:86843c27cc81 | 121 | //Dyanmic modes config |
coreyharris | 1:86843c27cc81 | 122 | MAX30003::ManageDynamicModes_u MNG_DYN_r; |
coreyharris | 1:86843c27cc81 | 123 | MNG_DYN_r.bits.fast = 0; |
coreyharris | 1:86843c27cc81 | 124 | ecgAFE.writeRegister( MAX30003::MNGR_DYN , MNG_DYN_r.all); |
coreyharris | 1:86843c27cc81 | 125 | |
coreyharris | 0:38c49bc37c7c | 126 | |
coreyharris | 1:86843c27cc81 | 127 | //MUX Config |
coreyharris | 1:86843c27cc81 | 128 | MAX30003::MuxConfiguration_u CNFG_MUX_r; |
coreyharris | 1:86843c27cc81 | 129 | CNFG_MUX_r.bits.pol = 0; |
coreyharris | 1:86843c27cc81 | 130 | ecgAFE.writeRegister( MAX30003::CNFG_EMUX , CNFG_MUX_r.all); |
coreyharris | 0:38c49bc37c7c | 131 | |
coreyharris | 1:86843c27cc81 | 132 | return; |
coreyharris | 0:38c49bc37c7c | 133 | } |
coreyharris | 0:38c49bc37c7c | 134 |