Diff: main.cpp

Revision:

0:1ca47c273d0f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jan 30 23:08:52 2012 +0000
@@ -0,0 +1,66 @@
+// Relay bytes received as SPI slave to PC-USB-Serial
+
+#include "mbed.h"
+#include "MODSERIAL.h"
+
+//SPISlave    slave(p5, NC, p7, p8);
+SPISlave    slave(p11, NC, p13, p14);
+MODSERIAL   pc(USBTX,NC,1024,0);
+//Serial    pc(USBTX,NC);
+DigitalOut  ledTX(LED1);
+DigitalOut  ledRX(LED2);
+DigitalOut  ledOV(LED4);
+Timeout     toRXLed;
+
+
+#define fSPI (5000000)
+#define BAUD (115200)
+
+
+void offRXLed(void)
+{
+    ledRX = 0;
+}
+
+void onRX(void)
+{
+    ledRX = 1;
+    toRXLed.attach(offRXLed,0.1);
+}
+
+// This function is called when a character goes from the TX buffer
+// to the Uart THR FIFO register.
+void txCallback(MODSERIAL_IRQ_INFO *q) {
+    ledTX = 1;
+}
+
+// This function is called when TX buffer goes empty
+void txEmpty(MODSERIAL_IRQ_INFO *q) {
+    ledTX = 0;
+}   
+
+// This function is called when TX buffer is Overrun
+void txOVR(MODSERIAL_IRQ_INFO *q) {
+    ledOV = 1;
+}
+
+  
+int main()
+{
+    pc.baud(BAUD);
+    slave.frequency(fSPI);
+    pc.attach(&txEmpty,    MODSERIAL::TxEmpty);
+    pc.attach(&txCallback,    MODSERIAL::TxIrq);
+    pc.attach(&txOVR,    MODSERIAL::TxOvIrq);
+    
+    pc.printf("\n==== SPI 2 USB ready... ===\n");
+
+    while(1)
+    {
+        while ( !slave.receive()  );
+        {
+            pc.putc( slave.read() );   // Read byte from master
+            onRX();
+        }
+    }
+}
\ No newline at end of file