Diff: I2CDriverTest02.h

Revision:

4:eafa7efcd771

Parent:

3:967dde37e712

Child:

6:5b98c902a659

diff -r 967dde37e712 -r eafa7efcd771 I2CDriverTest02.h
--- a/I2CDriverTest02.h	Fri Apr 19 21:33:29 2013 +0000
+++ b/I2CDriverTest02.h	Sat Apr 20 09:52:09 2013 +0000
@@ -3,26 +3,44 @@
 #include "I2CMasterRtos.h"
 #include "I2CSlaveRtos.h"
 
-const int freq = 100000;
+const int freq = 400000;
 const int adr = 42;
 const int len=42;
-const char* cMsg="We are mbed, resistance is futile";
+const char* mstMsg="We are mbed, resistance is futile";
+const char* slvMsg="Fine with me, let's get addicted";
 
-static void rxMsg(I2CSlaveRtos& slv)
+static void slvRxMsg(I2CSlaveRtos& slv)
 {
-    char rMsg[len];
-    memset(rMsg,0,len);
+    char rxMsg[len];
+    memset(rxMsg,0,len);
     if ( slv.receive() == I2CSlave::WriteAddressed) {
-        slv.read(rMsg, len); // have to add 1 byte for the address (bug report!)
-        printf("thread %d received message '%s'\n",Thread::gettid(),rxMsg);
+        slv.read(rxMsg, len);
+        //rMsg[len-1]=0;
+        printf("thread %X received message as i2c slave: '%s'\n",Thread::gettid(),rxMsg);
     } else
-        printf("god damned nation");
+        printf("Ouch slv rx failure\n");
 }
 
-static void txMsg(I2CMasterRtos& mst)
+static void slvTxMsg(I2CSlaveRtos& slv)
+{
+    if ( slv.receive() == I2CSlave::ReadAddressed) {
+        slv.write(slvMsg, len);
+    } else
+        printf("Ouch slv tx failure\n");
+}
+
+static void mstTxMsg(I2CMasterRtos& mst)
 {
-    mst.write(adr,cMsg,len);
-    printf("thread %d has sent the message\n",Thread::gettid());
+    mst.write(adr,mstMsg,len);
+    //printf("thread %X has sent the message\n",Thread::gettid());
+}
+
+static void mstRxMsg(I2CMasterRtos& mst)
+{
+    char rxMsg[len];
+    memset(rxMsg,0,len);
+    mst.read(adr,rxMsg,len);
+    printf("thread %X received message as i2c master: '%s'\n",Thread::gettid(),rxMsg);
 }
 
 static void channel1(void const *args)
@@ -30,10 +48,12 @@
     I2CMasterRtos mst(p9,p10,freq);
     I2CSlaveRtos slv(p9,p10,freq,adr);
     while(1) {
-        rxMsg(slv);
+        slvRxMsg(slv);
+        slvTxMsg(slv);
         Thread::wait(100);
-        txMsg(mst);
+        mstTxMsg(mst);
         Thread::wait(100);
+        mstRxMsg(mst);
     }
 }
 
@@ -42,10 +62,12 @@
     I2CMasterRtos mst(p28,p27,freq);
     I2CSlaveRtos slv(p28,p27,freq,adr);
     while(1) {
-        txMsg(mst);
+        Thread::wait(100);
+        mstTxMsg(mst);
         Thread::wait(100);
-        rxMsg(slv);
-        Thread::wait(100);
+        mstRxMsg(mst);
+        slvRxMsg(slv);
+        slvTxMsg(slv);
     }
 }