Diff: main.cpp

Revision:

0:95fad925fbf6

diff -r 000000000000 -r 95fad925fbf6 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Nov 10 11:28:34 2015 +0000
@@ -0,0 +1,72 @@
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+AnalogIn FSR1(p20);
+AnalogIn FSR2(p19);
+
+
+int8_t AD5245_write_result;
+
+float fsr1_value;
+float fsr2_value;
+int truncated_fsr1_value;
+
+int8_t AD5245_addr = 0x2C;
+//TODO: LTC4151 address will be change.
+int8_t LTC4151_addr = 0xCE;
+
+char data[2];
+
+Serial pc(USBTX, USBRX);
+
+I2C i2c(p9,p10);
+
+int msb = 0;
+int main()
+{
+    pc.baud(115200);
+
+    while(1) {
+        data[0] = 0x04;
+        fsr1_value=FSR1.read();
+        truncated_fsr1_value=fsr1_value*255;
+        pc.printf("Truncated Value: %d\n",truncated_fsr1_value);
+        i2c.start();
+        i2c.write(AD5245_addr);
+        i2c.write(truncated_fsr1_value);
+        i2c.stop();
+
+        wait(0.01);
+#if 1
+        i2c.start();                // I2C start
+        i2c.write(0xCE);            // I2C slave address - 0xCE
+        i2c.write(0x04);            // I2C slave register address - C_register 02h
+        i2c.start();                // I2C start
+        i2c.write(0xCF);            // I2C slave address - 0xCE
+        msb=i2c.read(0);        // I2C read with NAK (not-acknowledge)
+        i2c.stop();
+
+        pc.printf("Msb: %d\n",msb);
+#endif
+#if 0
+        data[0] = 0x02;  //register we want to read
+        int ret = i2c.write(LTC4151_addr, data, 1, true);  //Write one byte, dont transmit stop condition, check if we get ACK
+
+        if (ret == 0)
+            printf("Succesfull write\n\r");
+        else
+            printf("Returned: %X\n\r", ret);
+
+        i2c.read(LTC4151_addr, data, 2);
+        pc.printf("Byte 1: 0x%x Byte 2: 0x%x\n",data[0],data[1]);
+        pc.printf("Data = %d\n\r", (data[0]<<8) + data[1]);
+#endif
+
+        wait(0.5);
+        if(myled) {
+            myled = 0;
+        } else {
+            myled = 1;
+        }
+    }
+}