Jack Cosslett / Mbed 2 deprecated frdm_gpio

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Dependencies:   USBDevice mbed

Diff: ina226.cpp

Revision:
0:4318f664a8e1
Child:
1:5dc94660e311
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ina226.cpp	Wed Dec 02 18:01:38 2015 +0000
@@ -0,0 +1,39 @@
+#include "ina226.h"
+
+INA226::INA226(I2C* theI2C, char address)
+{
+    //set up config register            //256 averages          //continuous shunt voltage conversion
+    short write_byte = CONF_DEFAULT |_BV(AVG2) | _BV(AVG0) | _BV(MODE3) | _BV(MODE1);
+    
+    write(REG_CONF, write_byte);
+    //set up calibration (full range ~1.6A)
+    write(REG_CAL, 0x0800);
+}
+
+void INA226::write(INA226REG reg, short value)
+{
+    shortToChar stc;
+    char cmd[3];
+    stc.u16 = value;
+    
+    cmd[0] = reg;
+    cmd[1] = stc.u8[1];
+    cmd[2] = stc.u8[0];
+    
+    i2c->write(i2cAddress,cmd,3);
+}
+
+short INA226::read(INA226REG reg)
+{
+    shortToChar stc;
+    
+    char cmd[2];
+    cmd[0] = reg;
+    i2c->write(i2cAddress,cmd,1);
+    
+    i2c->read(i2cAddress, cmd, 2);
+    stc.u8[1] = cmd[0];
+    stc.u8[0] = cmd[1];
+    
+    return (stc.u16);
+}
\ No newline at end of file