MAX32620HSP ECG with lead off detection
Dependencies: mbed HSP_ECG MAX14720 USBDevice
Diff: main.cpp
- Revision:
- 1:8b09f627a713
- Parent:
- 0:9ead5978d784
--- a/main.cpp Thu Mar 28 08:10:23 2019 +0000
+++ b/main.cpp Fri Mar 29 09:20:05 2019 +0000
@@ -4,7 +4,7 @@
#include "MAX30101.h"
#include "System.h"
#include "USBSerial.h"
-
+
/************************************************************************************************************************************/
/// define the HVOUT Boost Voltage default for the MAX14720 PMIC
#define HVOUT_VOLTAGE 4500 // set to 4500 mV
@@ -40,7 +40,7 @@
// Settings for Lead Detection
#define En_dcloff 0x01
#define Ipol 0x00
- #define Imag 0x00
+ #define Imag 0x01
#define Vth 0x00
// Settings for the HR initialization
@@ -76,9 +76,10 @@
PwmOut pwmout(P1_7);
// Data of sensors
- int32_t ECG_Raw;
+ int32_t ECG_Raw, RtoR_data;
+ uint32_t index = 0;
+
//int32_t SpO_Raw;
- uint32_t index = 0;
DigitalOut led(LED1);
//@brief Creates a packet that will be streamed via USB Serial
@@ -88,10 +89,9 @@
//@param number Number of elements in the buffer
//
void StreamPacketUint32_ex(uint32_t id, uint32_t *buffer, uint32_t number) {
- int k;
if(id == MAX30001_DATA_ECG)
{
- for (k = 0; k < number; k++)
+ for (int k = 0; k < number; k++)
{
ECG_Raw = (int32_t)(buffer[k] << 8);
ECG_Raw = ECG_Raw >> 14;
@@ -99,24 +99,20 @@
usbSerial.printf("%d\r\n", ECG_Raw);
index++;
}
- }
- }
- /*void StreamPacketUint32_ex(uint32_t id, uint32_t *buffer, uint32_t number) {
- int i;
- if(id == MAX30101_OXIMETER_DATA + 2)
+ }
+ /*if(id == MAX30001_DATA_RTOR)
{
- for (i = 0; i < number; i++)
- {
- SpO_Raw = (int32_t)(buffer[i]);
- }
- usbSerial.printf("%d\r\n", SpO_Raw);
- }
- }*/
- //******************************************************************************
- /*void MAX30101_OnInterrupt(void){
- I2CM_Init_Reset(2, 1);
- }*/
- //*******************************************************************************
+ for(int i = 0; i < number; i++)
+ {
+ RtoR_data = (buffer[i]);
+ //usbSerial.printf("HR: %d\r\n", (60000/(RtoR_data << 3)));
+ }
+ }*/
+ if(id == MAX30001_DATA_LEADOFF_DC)
+ {
+ usbSerial.printf("LOFF\r\n");
+ }
+ }
int main() {
// hold results for returning functions
int result;
@@ -129,15 +125,6 @@
max14720.boostEn = MAX14720::BOOST_ENABLED;
max14720.boostSetVoltage(HVOUT_VOLTAGE);
-
- // This is the SpO2 mode (IR&Red LED)
- /*max30101.SpO2mode_init(FIFO_WATERLEVEL_MARK, SAMPLE_AVG, SAMPLE_RATE,PULSE_WIDTH, RED_LED_CURRENT,IR_LED_CURRENT);
-
- // MAX30101 initialize interrupt
- max30101.onInterrupt(&MAX30101_OnInterrupt);
- max30101.onDataAvailable(&StreamPacketUint32_ex);
- max30101_Interrupt.fall(&MAX30101MidIntHandler);*/
-
// Interrupt priority
NVIC_SetPriority(GPIO_P0_IRQn, 5);
NVIC_SetPriority(GPIO_P1_IRQn, 5);
@@ -162,7 +149,6 @@
// Configuring the FCLK for the ECG, set to 32.768KHZ
pwmout.period_us(31);
pwmout.write(0.5); // 0-1 is 0-100%, 0.5 = 50% duty cycle.
- //max30001.max30001_RtoR_InitStart(En_rtor, Wndw, Gain1, Pavg, Ptsf, Hoff, Ravg, Rhsf, Clr_rrint);
max30001.max30001_sw_rst(); // Do a software reset of the MAX30001
max30001.max30001_INT_assignment(
MAX30001::MAX30001_INT_B, // en_enint_loc
@@ -190,23 +176,27 @@
// MAX30001 initialize interrupt
max30001.max30001_ECG_InitStart(En_ecg, Openp, Openn, Pol, Calp_sel, Caln_sel, E_fit, Rate, Gain, Dhpf, Dlpf);
- //max30001.max30001_Enable_DcLeadOFF_Init(En_dcloff, Ipol, Imag, Vth);
+ //max30001.max30001_RtoR_InitStart(En_rtor, Wndw, Gain1, Pavg, Ptsf, Hoff, Ravg, Rhsf, Clr_rrint);
+ max30001.max30001_Enable_DcLeadOFF_Init(En_dcloff, Ipol, Imag, Vth);
//max30001.max30001_FIFO_LeadONOff_Read();
max30001.max30001_synch();
max30001.onDataAvailable(&StreamPacketUint32_ex);
int a;
while (1)
{
+
a = usbSerial._getc();
if (a == 65)
{
max30001.max30001_Stop_ECG();
+ max30001.max30001_Disable_DcLeadOFF();
index = 0;
}
if (a == 97)
{
//max30001.max30001_sw_rst();
max30001.max30001_ECG_InitStart(En_ecg, Openp, Openn, Pol, Calp_sel, Caln_sel, E_fit, Rate, Gain, Dhpf, Dlpf);
+ max30001.max30001_Enable_DcLeadOFF_Init(En_dcloff, Ipol, Imag, Vth);
//max30001.max30001_synch();
//max30001.onDataAvailable(&StreamPacketUint32_ex);
}