123
Dependencies: Hexi_KW40Z Hexi_OLED_SSD1351 MAX30101
Fork of HeartRate by
main.cpp
- Committer:
- xihan94
- Date:
- 2018-06-01
- Revision:
- 2:9dfb7ebaaa6e
- Parent:
- 1:ad1b075585bc
File content as of revision 2:9dfb7ebaaa6e:
#include "mbed.h" #include "mbed_events.h" #include "MAX30101.h" #define FIFO_DATA_MAX 288 DigitalOut pwr1v8(PTA29); DigitalOut pwr3v3b(PTC13); DigitalOut pwr15v(PTB12); I2C i2c0(PTB1, PTB0); InterruptIn maximInterrupt(PTB18); Serial pc(USBTX, USBRX); EventQueue evqueue(32 * EVENTS_EVENT_SIZE); Thread t; MAX30101 hr(i2c0); int mask_ppg = 0; uint32_t count = 0; void interruptHandlerQueued() { MAX30101::InterruptBitField_u interruptStatus; hr.getInterruptStatus(interruptStatus); printf("Interrupt Status: 0x%02x\r\n", interruptStatus.all); if (interruptStatus.bits.pwr_rdy == 0x1) { printf("Powered on\r\n"); // // Soft reset // MAX30101::ModeConfiguration_u modeConf; // modeConf.all = 0; // modeConf.bits.reset = 1; // hr.setModeConfiguration(modeConf); // wait(0.01); // // // Configure FIFO // MAX30101::FIFO_Configuration_u fifoConf; // hr.getFIFOConfiguration(fifoConf); // pc.printf("FIFO Configuration: 0x%02x\r\n", fifoConf.all); // // // Set LED power // hr.setLEDPulseAmplitude(MAX30101::LED1_PA, 0x0C); // hr.setLEDPulseAmplitude(MAX30101::ProxModeLED_PA, 0x19); // pc.printf("LED set\r\n"); // // MAX30101::SpO2Configuration_u spo2Conf; // hr.getSpO2Configuration(spo2Conf); // spo2Conf.bits.led_pw = MAX30101::PW_1; // spo2Conf.bits.spo2_sr = MAX30101::SR_100_Hz; // hr.setSpO2Configuration(spo2Conf); // hr.getSpO2Configuration(spo2Conf); // pc.printf("SpO2 Configuration: 0x%02x\r\n", spo2Conf.all); // // // Proximity settings // hr.setProxIntThreshold(0x14); // // // Enable HR mode // modeConf.all = 0; // modeConf.bits.mode = MAX30101::HeartRateMode; // hr.setModeConfiguration(modeConf); // printf("Mode set\r\n"); } // if (interruptStatus.bits.prox_int == 0x1) { // printf("Proximity Triggered, entered HR Mode."); // } // // if (interruptStatus.bits.ppg_rdy == 0x1) { // printf("PPG Ready.\r\n"); // mask_ppg = 1; // } // // if (interruptStatus.bits.a_full == 0x1) { // printf("FIFO Almost Full.\r\n"); // uint8_t data[FIFO_DATA_MAX]; // uint16_t readBytes = 0; // hr.readFIFO(MAX30101::OneLedChannel, data, readBytes); // // for (uint16_t i = 0; i < readBytes; i += 3) { // uint8_t sample[4] = {0}; // sample[0] = data[i + 2]; // sample[1] = data[i + 1]; // sample[2] = data[i]; // // printf("%u\r\n", *(uint32_t *) sample); // } // } // // interruptStatus.all = 0xFF; // if (mask_ppg == 1) { // interruptStatus.bits.ppg_rdy = 0; // } // hr.enableInterrupts(interruptStatus); } void interruptHandler() { evqueue.call(interruptHandlerQueued); } // main() runs in its own thread in the OS int main() { printf("Hello world.\r\n"); t.start(callback(&evqueue, &EventQueue::dispatch_forever)); pwr1v8 = 1; pwr3v3b = 1; pwr15v = 0; maximInterrupt.fall(interruptHandler); maximInterrupt.enable_irq(); MAX30101::InterruptBitField_u interruptStatus; interruptStatus.all = 0xFF; hr.enableInterrupts(interruptStatus); return 0; }