Diff: main.cpp

Revision:

2:16545dbc88ae

Parent:

1:3cceef118195

Child:

3:972fa06ef0aa

--- a/main.cpp	Thu Jul 16 05:19:02 2015 +0000
+++ b/main.cpp	Thu Jul 16 05:40:25 2015 +0000
@@ -1,5 +1,4 @@
 #include "mbed.h"
-#include "rtos.h"
 #include "SimpleDMA.h"
 #include "dmaSPIslave.h"
 
@@ -19,37 +18,27 @@
     pc.baud(9600);
     pc.printf("inside main\r\n");
     spi.format(8,0);
-//    spi.frequency(16000000);
+    spi.frequency(10000000);
     
     uint8_t buffer[PAYLOAD_LENGTH] = {0};
     pc.printf("welcome to dma test, start sending data now\r\n");
+
+//    initialise the buffer for dma
+    spi.bulkRead_init(buffer, PAYLOAD_LENGTH, &do_this);
+//    start dma read
+    spi.bulkRead_start();
     
-//    while(true){
-//        int i = 0;
-//        while(i < PAYLOAD_LENGTH){
-//            if(spi.receive()){
-//                buffer[i] = spi.read();
-//                ++i;
-//                ledg = !ledg;
-//            }
-//        }
-//        for(int i = 0 ; i < PAYLOAD_LENGTH ; ++i){
-//            pc.printf("%02x ", buffer[i]);
-//        }
-//        pc.printf("\r\n");
-//
-//    }
-
-    spi.bulkRead_init(buffer, PAYLOAD_LENGTH, &do_this);
-    spi.bulkRead_start();
     while(true){
         if(flag){
             flag = false;
             ledg = !ledg;
-            for(int i = 0 ; i < PAYLOAD_LENGTH ; ++i){
-                pc.printf("%02x ", buffer[i]);
-            }
-            pc.printf("\r\n");
+
+//            for(int i = 0 ; i < PAYLOAD_LENGTH ; ++i){
+//                pc.printf("%02x ", buffer[i]);
+//            }
+//            pc.printf("\r\n");
+
+//            start dma again after handling the data
             spi.bulkRead_start();
         }
     }