Diff: main.cpp

Revision:

0:48b56cad57ae

Child:

1:bb09fc532f44

diff -r 000000000000 -r 48b56cad57ae main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Jun 02 09:14:50 2017 +0000
@@ -0,0 +1,34 @@
+#include "mbed.h"
+ 
+SPI spi(D11, D12, D13); // mosi, miso, sclk
+DigitalOut chipSelect(D10);
+ 
+Serial pc(USBTX, USBRX); // tx, rx
+ 
+int main() {
+ 
+    int valueToSendToSlave = 20; // Starting value only, this increments
+    spi.format(8,3);        // Setup:  bit data, high steady state clock, 2nd edge capture
+    spi.frequency(1000000); //1MHz
+ 
+    pc.printf("======================================================\r\n");
+    pc.printf("Press any key to start...\r\n");
+    pc.getc(); // wait for keyboard
+ 
+    int counter = 1;
+    while (1) {
+ 
+        pc.printf("%d Value to send = %d ", counter++, valueToSendToSlave);
+        
+        chipSelect = 0; // Select device
+        int dataFromSlave =  spi.write(valueToSendToSlave);
+        chipSelect = 1; // Deselect device
+ 
+        pc.printf("  returns %d\r\n", dataFromSlave);
+        
+        valueToSendToSlave++;
+        
+        wait(5); // Wait for 5 seconds for readability only
+        
+    }
+}
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