Maxim Integrated
This is one of the demo programs for the MAX30003WING. The program outputs the raw data serially to graphically reproduce the QRS complex. A serial plotter is needed to graph the data.
Dependencies: MAX30003 max32630fthr
Fork of
MAX30003_Demo_Plot
by 
John Greene
Revision 0:38c49bc37c7c, committed 2017-08-16
- Comitter:
- coreyharris
- Date:
- Wed Aug 16 22:59:59 2017 +0000
- Child:
- 1:86843c27cc81
- Commit message:
- Stable demo for MAX30003, need to add ETAG monitoring if possible
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MAX30003.lib Wed Aug 16 22:59:59 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/MaximIntegrated/code/MAX30003/#313e09ea1738
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Aug 16 22:59:59 2017 +0000
@@ -0,0 +1,135 @@
+#include "mbed.h"
+#include "max32630fthr.h"
+#include "MAX30003.h"
+
+MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
+
+void ecg_config(MAX30003 &ecgAFE);
+
+/* ECG FIFO nearly full callback */
+volatile bool ecgFIFOIntFlag = 0;
+void ecgFIFO_callback() {
+
+ ecgFIFOIntFlag = 1;
+
+}
+
+int main()
+{
+ DigitalOut rLed(LED1, LED_OFF);
+ DigitalOut gLed(LED2, LED_OFF);
+ DigitalOut bLed(LED3, LED_OFF);
+
+ Serial pc(USBTX, USBRX);
+ pc.baud(115200);
+
+ pc.printf("Running.... \r\n\r\n");
+ wait(0.5);
+
+ SPI spiBus(SPI2_MOSI, SPI2_MISO, SPI2_SCK);
+
+ MAX30003 *ecgAFE;
+ ecgAFE = new MAX30003(spiBus, P5_3);
+ ecg_config(*ecgAFE);
+
+ /* Peripehral configuration */
+ InterruptIn ecgFIFO_int(P5_4); // Config P5_4 as int. in for the ecg FIFO almost full interrupt
+ ecgFIFO_int.fall(&ecgFIFO_callback); //
+
+ pc.printf("Config. complete.... \r\n\r\n");
+ wait(0.5);
+
+ uint32_t ecgFIFO[32];
+ int16_t ecgSample, ETAG;
+ while(1)
+ {
+ /* Read back ECG samples from the FIFO */
+ if( ecgFIFOIntFlag ) {
+
+ for( int i = 0; i < 16; i++ ){
+ ecgFIFO[i] = ecgAFE->readRegister( MAX30003::ECG_FIFO );
+ ecgSample = ecgFIFO[i] >> 8;
+ ETAG = ( ecgFIFO[i] >> 3 ) && 0x07;
+
+ pc.printf("Sample : %5d, \t ETAG : 0x%x \r\n", ecgSample, ETAG);
+ }
+
+ bLed = !bLed;
+ ecgFIFOIntFlag = 0;
+
+ }
+ }
+}
+
+
+
+
+void ecg_config(MAX30003& ecgAFE) {
+
+ // Reset ECG to clear registers
+ ecgAFE.writeRegister( MAX30003::SW_RST , 0);
+
+
+
+ // General config register setting
+ MAX30003::GeneralConfiguration_u CNFG_GEN_r;
+ CNFG_GEN_r.bits.en_ecg = 1;
+ CNFG_GEN_r.bits.rbiasn = 1;
+ CNFG_GEN_r.bits.rbiasp = 1;
+ CNFG_GEN_r.bits.en_rbias = 1;
+ CNFG_GEN_r.bits.imag = 2;
+ CNFG_GEN_r.bits.en_dcloff = 1;
+ ecgAFE.writeRegister( MAX30003::CNFG_GEN , CNFG_GEN_r.all);
+
+
+
+ // ECG Config register setting
+ MAX30003::ECGConfiguration_u CNFG_ECG_r;
+ CNFG_ECG_r.bits.dlpf = 1;
+ CNFG_ECG_r.bits.dhpf = 1;
+ CNFG_ECG_r.bits.gain = 3;
+ CNFG_ECG_r.bits.rate = 3;
+ ecgAFE.writeRegister( MAX30003::CNFG_ECG , CNFG_ECG_r.all);
+
+
+
+ //R-to-R configuration
+ MAX30003::RtoR1Configuration_u CNFG_RTOR_r;
+ CNFG_RTOR_r.bits.en_rtor = 1;
+ ecgAFE.writeRegister( MAX30003::CNFG_RTOR1 , CNFG_RTOR_r.all);
+
+
+
+ // Manage interrupts register setting
+ MAX30003::ManageInterrupts_u MNG_INT_r;
+ MNG_INT_r.bits.efit = 0b01111;
+ ecgAFE.writeRegister( MAX30003::MNGR_INT , MNG_INT_r.all);
+
+
+
+ // Enable interrupts register setting
+ MAX30003::EnableInterrupts_u EN_INT_r;
+ EN_INT_r.all = 0;
+ EN_INT_r.bits.en_eint = 1;
+ EN_INT_r.bits.intb_type = 0b11;
+ ecgAFE.writeRegister( MAX30003::EN_INT , EN_INT_r.all);
+
+
+
+ // Dyanmic modes config
+ MAX30003::ManageDynamicModes_u MNG_DYN_r;
+ MNG_DYN_r.bits.fast = 0;
+ ecgAFE.writeRegister( MAX30003::MNGR_DYN , MNG_DYN_r.all);
+
+
+
+ // MUX Config
+ MAX30003::MuxConfiguration_u CNFG_MUX_r;
+ CNFG_MUX_r.bits.pol = 0;
+ ecgAFE.writeRegister( MAX30003::CNFG_EMUX , CNFG_MUX_r.all);
+
+
+ ecgAFE.writeRegister( MAX30003::SYNCH , 0);
+
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/max32630fthr.lib Wed Aug 16 22:59:59 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/MaximIntegrated/code/max32630fthr/#02d6b69121e5
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Wed Aug 16 22:59:59 2017 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#269f58d75b752a4e67a6a2d8c5c698635ffd6752