Diff: Master.cpp

Revision:

13:8f54a702b9aa

Parent:

12:99c0f833a7de

Child:

15:4edd16cdc84b

--- a/Master.cpp	Tue Nov 12 20:28:46 2013 +0000
+++ b/Master.cpp	Tue Nov 12 21:24:53 2013 +0000
@@ -1,6 +1,32 @@
 #include "mbed.h"
 #include "SPI.h"
 
-SPI device(p1, p2, p3); //mosi, miso, sclk;
-
-
+SPI device(p5, p6, p7); //mosi, miso, sclk
+DigitalOut cs1(p8); //cs1 = chip select - slave 1
+DigitalOut cs2(p9); //cs2 = chip select - slave 2
+DigitalOut cs3(p10); //cs3 = chip select - slave 3
+ 
+int main() {
+    // Chip must be deselected
+    cs1 = 1;
+    cs2 = 1;
+    cs3 = 1;
+    
+    // Setup the spi for 8 bit data, high steady state clock,
+    // second edge capture, with a 1MHz clock rate
+    device.format(8,3);
+    device.frequency(1000000);
+ 
+    // Select the device by seting chip select low
+    cs1 = 0;
+ 
+    // Send 0x8f, the command to read the WHOAMI register
+    device.write(0x8F);
+ 
+    // Send a dummy byte to receive the contents of the WHOAMI register
+    int whoami = device.write(0x00);
+    printf("WHOAMI register = 0x%X\n", whoami);
+ 
+    // Deselect the device
+    cs1 = 1;
+}
\ No newline at end of file