Diff: main.cpp

Revision:

12:10b49ad3c492

Parent:

11:300afaf2696b

Child:

13:0e7bbc06083f

--- a/main.cpp	Fri Sep 25 16:42:40 2020 +0000
+++ b/main.cpp	Tue Sep 29 19:00:06 2020 +0000
@@ -18,7 +18,7 @@
 DigitalOut ledA(LED2);
 void ecg_config(MAX30003 &ecgAFE);
 //BufferedSerial pc(P3_1,P3_0);            // Use USB debug probe for serial link static Unbuffered
-static BufferedSerial pc(TARGET_TX_PIN, TARGET_RX_PIN, 115200);
+static BufferedSerial pc(TARGET_TX_PIN, TARGET_RX_PIN, 9600);
 
 //Serial uart_1(USBTX, USBRX);            // Use USB debug probe for serial link static Unbuffered
 //
@@ -36,6 +36,18 @@
     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)
 {   
    // Constants
@@ -64,7 +76,7 @@
     MAX30003 ecgAFE(spiBus, P5_3);          // New MAX30003 on spiBus, CS = P5_3 
     
     ecg_config(ecgAFE);                    // Config ECG 
-     
+    
     
     ecgAFE.writeRegister( MAX30003::SYNCH , 0);
     
@@ -79,7 +91,7 @@
    
     int16_t sample = 300;
     uint8_t final[10];
-    uint32_t packet_1 = 1600674360;
+    
     uint16_t checksum_ = 0;
     uint16_t mod_checksum = 0;
     
@@ -90,7 +102,7 @@
     
     uint8_t data_len_1 = 0;
     uint8_t data_len_2 = 0;
-    
+    uint32_t packet_1 = 0;
     uint8_t cksm_1 = 0;
     uint8_t cksm_2 = 0;
     uint8_t header_device_id[3] = {0,0,210};
@@ -102,33 +114,40 @@
     pc.write("Welcome",8*sizeof(char));
     printf("In the main loop");
      bool flag_first = false;
-       
+       int counter_reader = 0;
       do
       {
-        if (pc.readable()) {
+        if (pc.readable()) 
+        {     
         scanf("%s",buf);
      printf("The entered string is %s : \n ",buf);
-     uint32_t packet_1 = atoi(buf);
-     flag_first = true;
+     
+     packet_1 = atoi(buf);
+     set_time(packet_1);
+     
+    counter_reader++;
+     //flag_first = true;
     
         }
         
-        }while (flag_first==false);
-        
+        }while (counter_reader<=3); // take the third timestamp
          while(1) 
     {
        
     
-    if (timer_fast.read() > .9) 
+    if (timer_fast.read() >= 0.95) 
     {
      //t.start();
      //ledA = !ledA;   
-
+     
       
       pc.write((uint8_t *)header_device_id, sizeof(header_device_id));
       
       pc.write((uint8_t *)header_packet_type, sizeof(header_packet_type));
-      packet_1 ++;
+      time_t seconds = time(NULL);
+      packet_1 = seconds;
+      //packet_1 ++;
+      //printf("Time as seconds since January 1, 1970 = %d\n", packet_1);
       p_1 = packet_1 & 0xff;
       p_2 = (packet_1 >> 8) & 0xff;
       p_3 = (packet_1 >> 16) & 0xff;
@@ -231,6 +250,7 @@
     CNFG_GEN_r.bits.en_rbias = 1;   // Enable resistive bias
     CNFG_GEN_r.bits.imag = 2;       // Current magnitude = 10nA
     CNFG_GEN_r.bits.en_dcloff = 1;  // Enable DC lead-off detection   
+    //CNFG_GEN_r.bits.fmstr = 1; //125 sps FMSTR 1
     ecgAFE.writeRegister( MAX30003::CNFG_GEN , CNFG_GEN_r.all);