Diff: main.cpp

Revision:

21:193a10530741

Parent:

20:2e999e6568c1

Child:

22:07eec382c267

--- a/main.cpp	Wed Jun 23 20:32:39 2021 +0000
+++ b/main.cpp	Tue Jun 29 16:16:56 2021 +0000
@@ -31,6 +31,10 @@
 DigitalOut S2(P3_3);
 DigitalOut S3(P3_2);
 
+DigitalIn AB(P5_7);
+DigitalIn AC(P6_0);
+
+
 
 
 void ecg_config(MAX30003 &ecgAFE);
@@ -53,26 +57,11 @@
     ecgFIFOIntFlag = 1;
 }  
 
-time_t asUnixTime(int year, int mon, int mday, int hour, int min, int sec) {
-    struct tm   t;
-    t.tm_year = year - 1900;
-    t.tm_mon =  mon - 1;        // convert to 0 based month
-    t.tm_mday = mday;
-    t.tm_hour = hour;
-    t.tm_min = min;
-    t.tm_sec = sec;
-    t.tm_isdst = -1;            // Is Daylight saving time on? 1 = yes, 0 = no, -1 = unknown
- 
-    return mktime(&t);          // returns seconds elapsed since January 1, 1970 (begin of the Epoch)
-}
+
 int main(void)
 {   
  int t=0;
-// 
-//   EN=0; 
-//   EN=1;
-//   A0=0;
-//   A1=1;
+
 
       S0=0; 
       S1=0;
@@ -95,14 +84,14 @@
  uint16_t rtn_val;
  
  //time = 12:00:00 AM 12hr mode
- ds3231_time_t time = {50,10,16,1,0};  //seconds, min, hours, am_pm, mode
+ ds3231_time_t time = {50,20,10,1,0};  //seconds, min, hours, am_pm, mode
 
  
 rtn_val = rtc.set_time(time);
  
   
   //see datasheet for calendar format
- ds3231_calendar_t calendar = {4,23,6,21}; //day date month year
+ ds3231_calendar_t calendar = {3,29,6,21}; //day date month year
 
 
  rtn_val = rtc.set_calendar(calendar);
@@ -143,7 +132,7 @@
     uint32_t ecgFIFO, readECGSamples, idx, ETAG[32], status;
     int16_t ecgSample[32];
     //bool timerflag = false;
-    int16_t ecgSample_1sec[200];
+    int16_t ecgSample_1sec[250];
     uint8_t ecg_1 = 0;
     uint8_t ecg_2 = 0;
    uint16_t onesec_counter = 0;
@@ -277,9 +266,22 @@
       S3=0;
      channel_num[0]= {0};
      t=0;} 
-    
-    
-    
+     
+    if (AB ==0)  //5_7 = P17
+    {t=50; 
+      S0=1; 
+      S1=0;
+      S2=0;
+      S3=0;
+     channel_num[0]= {1};}
+     
+     if (AC==0)  // 6_0 = P18
+     {t=60; 
+      S0=0; 
+      S1=1;
+      S2=0;
+      S3=0;
+      channel_num[0]= {2};}
     
        } 
         // Read back ECG samples from the FIFO 
@@ -360,6 +362,7 @@
     // General config register setting
     MAX30003::GeneralConfiguration_u CNFG_GEN_r;
     CNFG_GEN_r.bits.en_ecg = 1;     // Enable ECG channel
+    CNFG_GEN_r.bits.fmstr = 1;                                           // set frequency to 32000kHz
     CNFG_GEN_r.bits.rbiasn = 1;     // Enable resistive bias on negative input
     CNFG_GEN_r.bits.rbiasp = 1;     // Enable resistive bias on positive input
     CNFG_GEN_r.bits.en_rbias = 1;   // Enable resistive bias
@@ -374,7 +377,7 @@
     CNFG_ECG_r.bits.dlpf = 1;       // Digital LPF cutoff = 40Hz
     CNFG_ECG_r.bits.dhpf = 1;       // Digital HPF cutoff = 0.5Hz
     CNFG_ECG_r.bits.gain = 3;       // ECG gain = 160V/V
-    CNFG_ECG_r.bits.rate = 2;       // Sample rate = 128 sps
+    CNFG_ECG_r.bits.rate = 2;                                               // Sample rate = 125 sps
     ecgAFE.writeRegister( MAX30003::CNFG_ECG , CNFG_ECG_r.all);