Diff: main.cpp

Revision:

0:58ec354d3b79

Child:

1:72227bdac415

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jun 30 07:40:20 2015 +0000
@@ -0,0 +1,98 @@
+
+
+// Payload uC (Tiva) -- > SPI master
+// CDMS uC (Freescale) --> SPI slave
+// packet length = 32*16 bits (32 bins --> each 2 bytes)
+ 
+#include "mbed.h"
+
+void FUNC_MASTER_WRITE(void);
+const int addr = 0x20<<1;
+Timer Siv ;
+I2C master (D14,D15);
+InterruptIn PYLD_I2C_Int(PTA13);
+SPISlave device(PTD6, PTD7, PTD5,PTD4 ); // mosi, miso, sclk, ssel --> using SPI1
+InterruptIn PYLD_SPI_Interrupt(PTD2);
+int payloadBins = 32;
+float Stability_delay = 0.005228 ;// 0.005228
+
+Serial pc(USBTX, USBRX); // tx, rx  --> serial feedback for debug
+
+void payloadProcess() {
+  
+   
+    //wait(Stability_delay); // wait after interrupt for stability
+    unsigned short scienceRawPacket[payloadBins];
+    
+    for(int i=0; i<payloadBins;i++){
+       
+        
+        
+        while(!device.receive()); // blocking statement --> waiting for data from Payload
+        scienceRawPacket[i] = device.read();   // Read byte from master
+
+    }
+    // serial feedback
+    pc.printf("Packet recieved\r\n");
+    for(int i=0;i<payloadBins;i++){
+        pc.printf("%d\t",scienceRawPacket[i]);
+        scienceRawPacket[i] = 0;
+    }
+    pc.printf("\r\n");
+ 
+} 
+int dt3;
+bool f = 1;
+char rdata[10],rdata2;
+void readds()
+{   
+
+               //wait(Stability_delay);
+
+               f = master.read(addr,rdata,2);
+              // dt3 = master.read(1);
+               
+               
+}   
+ 
+int loop=1;
+char *writedata = new char;
+char data[8]= "payload"; 
+ 
+void FUNC_MASTER_WRITE(void)
+{    int data = pc.getc();      
+      loop=1;
+ 
+ 
+ master.frequency(100000); 
+  *writedata = data; 
+     while(loop)
+     {
+         bool check = (bool)master.write(addr,writedata,1);
+
+         loop = 0;
+     }
+}  
+int main() {
+    int dt1 = 0,dt2 = 0;
+    device.format(16,0);  // SPI format --> 16 bits, mode = 0
+    device.frequency(1000000);
+       
+    pc.printf("Example code demonstarting Payload - CDMS SPI & I2C communication!\r\n");
+    PYLD_SPI_Interrupt.rise(&payloadProcess);
+    PYLD_I2C_Int.rise(&readds);
+    
+    while(1)
+    {
+    FUNC_MASTER_WRITE();
+    wait(1);
+    dt1 = rdata[0] ;
+    dt2 = rdata[1] ;
+    //pc.printf("Temperature %d \n\r",rdata);
+    pc.printf("Temperature %d \n\r",dt1);
+    pc.printf("Temperature2 %d \n\r",dt2);
+    //pc.printf("Temperature3 %d \n\r",dt3);
+    
+
+    }
+}