Revision 4:fb6fa24b502c, committed 2015-03-16

Comitter:

armdran

Date:

Mon Mar 16 14:33:35 2015 +0000

Parent:

3:849c7a28b185

Commit message:

1

Changed in this revision

diff -r 849c7a28b185 -r fb6fa24b502c main.cpp
--- a/main.cpp	Wed Mar 11 15:59:56 2015 +0000
+++ b/main.cpp	Mon Mar 16 14:33:35 2015 +0000
@@ -1,6 +1,8 @@
 #include "mbed.h"
 #include "USBSerial.h"
 
+//SPI Master
+
 SPI spi(P0_9, P0_8, P1_29); // mosi, miso, sclk
 USBSerial serial; 
 Serial pc(USBTX, USBRX);
@@ -14,25 +16,25 @@
     uint8_t i = 0; 
      
     while(1) {
-        cs = 0;
-        // Setup the spi for 8 bit data, high steady state clock,
-        // second edge capture, with a 1MHz clock rate
         
-        // Send 0x8f, the command to read the WHOAMI register
-        //spi.write(0x8f);
-        //spi.write(i);
-     
-        // Send a dummy byte to receive the contents of the WHOAMI register
-        //int whoami = spi.write(0x00);
-        //serial.printf("WHOAMI register = 0x%X\r\n", whoami);
-        wait(1.5);
-        uint8_t receive = spi.write(i);
-        serial.printf("send: 0x%X; received: = 0x%X\r\n", i, receive);
+        cs = 0;
+        wait_ms(1);
+        uint8_t dummy_response = spi.write(i);
+        wait_ms(1);
         cs = 1;
-        wait(0.5);
-        led = 1; 
-        wait(1);
-        led = 0;         
+        wait_ms(1);
+        cs = 0;
+        uint8_t response = spi.write(0xFF);
+        wait_ms(1);
+        cs = 1;
+        wait_ms(1);
+                        
+        serial.printf("instruction: 0x%X; response: = 0x%X; dummy_response = 0x%X\r\n", i, response, dummy_response);
+        
+        wait(2);
+        led = 1;
+        wait(.5);
+        led = 0;
         i++;
     }