Garrett Gudgel / Mbed 2 deprecated SPI_CAN_SLAVE

Each LPC1768 is capable of controlling 2 CAN bus lines. Linking multiple chips together via SPI allows for more bus lines to be monitored simultaneously. Slave unit.

Dependencies:   mbed-rtos mbed

Diff: spiSlaveProtocol.cpp

Revision:
0:a46303f3277c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spiSlaveProtocol.cpp	Fri Oct 31 22:14:03 2014 +0000
@@ -0,0 +1,32 @@
+#include "spiSlaveProtocol.h"
+
+spiSlaveProtocol::spiSlaveProtocol(Serial* PC) {
+    spiLine = new SPISlave(p5, p6, p7, p8);
+    spiLine->format(8,3);        // Setup:  bit data, high steady state clock, 2nd edge capture
+    spiLine->frequency(1000000); // 1MHz
+    
+    pc = PC; // tx, rx
+    pc->printf("======================================================\r\n");
+    
+    timout = new Timer();
+    
+    state = 0;
+    commandBytes = 0;
+}
+ 
+ void spiSlaveProtocol::run() {
+    if (spiLine->receive()) {
+        int valueFromMaster = spiLine->read();
+        
+        if (valueFromMaster == 0x42) {
+            spiLine->reply(0xAA); // Prime SPI with next reply
+            //pc->printf("Life rxvd, next line will reply with 0xAA\n\r");
+        }
+        
+        else if (valueFromMaster == 0x84) {
+            spiLine->reply(0xAB);
+            spiLine->reply(0xAC);
+            //pc->printf("Life multiplyer, next line will reply with 2 x 0xBB\n\r");
+        }
+    }
+}   
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