Revision 0:8a63b2e87af8, committed 2011-08-26

Comitter:

picnic

Date:

Fri Aug 26 10:11:08 2011 +0000

Commit message:

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Aug 26 10:11:08 2011 +0000
@@ -0,0 +1,63 @@
+#include "mbed.h"
+
+// Simple Spi Slave
+// Simple SPI Slave receives bytes on the SPI and will echo back the byte received on the next request.
+
+DigitalOut myled(LED1);
+Serial pc(USBTX, USBRX);
+SPISlave spi(p11, p12, p13, p14); // mosi, miso, sclk, ssel
+
+int main() {
+    int v = 0xff;
+    long c = 0;
+    int ch;
+    int echoMode = 1;
+    
+    pc.printf("Simple SPI Slave Test\r\n");
+    pc.printf("Uses MBED's SPISlave library (1 byte in - 1 byte out)\r\n");
+    pc.printf("\r\n R : to add an extra reply() call\r\n" );
+    pc.printf(" I : Make a read() call\r\n" );
+    pc.printf(" S : Read receive status\r\n" );
+    pc.printf(" N : No reply()\r\n" );
+    spi.format(8,3);
+
+    spi.reply( v );
+
+    while(1) {
+        if( spi.receive() ) {
+            // Data available - our trigger to do something
+            v = spi.read();   // Read byte from master
+            if ( echoMode ) {
+                // and send last data back
+                spi.reply( v );
+            }
+            pc.printf( "%ld In %02x\r\n", c++, v );
+        }
+
+        if ( pc.readable() ) {
+            ch = pc.getc();
+            switch ( ch ) {
+                case 'R':
+                case 'r':
+                    spi.reply( 'B' );
+                    pc.printf( "Bogus Replay added\r\n" );
+                    break;
+                case 'I':
+                case 'i':
+                    v = spi.read();
+                    pc.printf( "Extra read = %02x\r\n", v );
+                    break;
+                case 'S':
+                case 's':
+                    v = spi.receive();
+                    pc.printf( "Status = %02x\r\n", v );
+                    break;
+                case 'N':
+                case 'n':
+                    echoMode = !echoMode;
+                    pc.printf( "Echo mode = %d\r\n", (echoMode & 1) );
+                    break;
+            }
+        }
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Aug 26 10:11:08 2011 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912