Diff: i2c_3200.cpp

Revision:

0:0c4c8f8e3e04

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/i2c_3200.cpp	Fri Aug 14 15:00:28 2015 +0000
@@ -0,0 +1,107 @@
+#include "fw_config.h"
+#if SEL_I2C_3200_TEST == 1
+
+#include "mbed.h"
+#if SEL_I2C_SLAVE_MODE == 1
+
+#else 
+
+#endif
+
+DigitalOut pin07  (P0_20);
+DigitalOut pin12  (P0_21);
+DigitalOut pin21  (P0_11);
+
+#if SEL_I2C_SLAVE_MODE == 1
+void i2c_3200 () {
+    
+    I2CSlave slave(P0_5 , P0_4);
+    // indicate enter
+    volatile int d = 0;
+    for (int i = 0; i < 5; i++) {
+        d = d > 0? 0:1;
+        pin07 = d;
+        pin12 = d;
+        pin21 = d;
+        wait(1);
+    }
+    pin07 = 1;
+    pin12 = 1;
+    pin21 = 1;
+    //while (1);
+    
+    
+    slave.address(0x60);
+    char buf[2];
+    
+    while (1) {
+        int i = slave.receive();
+         switch (i) {
+             case I2CSlave::ReadAddressed:
+                 buf[1] = 'Z';
+                 slave.write(buf, 1); // Includes null char
+                 pin07 = 0;
+                 pin12 = 1;
+                 pin21 = 1;
+                 break;
+             case I2CSlave::WriteGeneral:
+                 slave.read(buf, 10);
+                 pin12 = 0;
+                 pin07 = 1;
+                 pin21 = 1;
+                 printf("Read G: \n");
+                 break;
+             case I2CSlave::WriteAddressed:
+                 slave.read(buf, 1);
+                 pin21 = 0;
+                 pin07 = 1;
+                 pin12 = 1;
+                 if (buf[0] != 0xaa) {
+                     pin07 = 0;
+                 }
+                 wait(0.3);
+                 pin21 = 1;
+                 printf("Read A: %x, %x\n", buf[0], buf[1]);
+                 break;
+         }
+         //for(int i = 0; i < 10; i++) buf[i] = 0;    // Clear buffer
+    }
+}
+#else
+void i2c_3200_master () {
+    volatile int d = 0;
+    for (int i = 0; i < 10; i++) {
+        d = d > 0? 0:1;
+        pin07 = d;
+        pin12 = d;
+        pin21 = d;
+        wait(1);
+    }
+    pin07 = 1;
+    pin12 = 1;
+    pin21 = 1;
+    I2C master(P0_5 , P0_4);
+    char cmd[2];
+    int err;
+    master.frequency(400000);
+    while (1) {
+        cmd[0] = 0xAA;
+        //cmd[1] = 0x01;
+        err = master.write(0x60, cmd, 1);
+        if (err)  pin07 = 0;
+        wait(0.5);
+ 
+        cmd[0] = 0xAA;
+        //cmd[1] = 0x80;
+        err = master.write(0x60, cmd, 1);
+        if (err) pin12 = 0;
+        wait(0.5);
+        //slave.read(addr, cmd, 2);
+ 
+        //float tmp = (float((cmd[0]<<8)|cmd[1]) / 256.0);
+        //printf("Temp = %.2f\n", tmp);
+    }
+}    
+#endif
+
+#endif
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