kasturi rangan raghavan / Mbed 2 deprecated generate_ecg

generate ECG signal, from "rdsamp"ed physionet data

Dependencies:   mbed

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Show/hide line numbers main.cpp Source File

main.cpp

00001 #include "mbed.h"
00002 #define smp 2778  //2778 or 10000  
00003 #define ecgsize 3600  //1000 or 7200
00004 
00005 LocalFileSystem local("local");
00006 AnalogOut analog_out(p18);
00007 PwmOut pwm_out(LED2);
00008 
00009 int main() {
00010   float sample[ecgsize];
00011   FILE *fp = fopen("/local/data.txt","r"); // ECG_n
00012   for (int i = 0; i < ecgsize; i++) {
00013     // 7200 or 1000
00014     fscanf(fp, "%f", &sample[i]);
00015   }
00016   fclose(fp);
00017 
00018   for (;;) {
00019     for (int i = 0; i < ecgsize; i++) {
00020       analog_out.write(sample[i]);
00021       pwm_out = sample[i];
00022       wait_us(smp);
00023     }
00024   }
00025 }
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