Diff: INA226.cpp

Revision:

0:ad712ebc38d6

Child:

1:9c367d227582

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/INA226.cpp	Mon Jul 10 10:50:39 2017 +0000
@@ -0,0 +1,148 @@
+#include"mbed.h"
+#include"INA226.h"
+
+//Serial pc(USBTX, USBRX); //tx, rx
+
+myINA226::myINA226(I2C &i2cBus){
+    i2c = &i2cBus;
+    i2c->frequency(400000);
+}
+
+
+void myINA226::set_callibretion(unsigned int val)
+{
+    char reg = cal_reg;
+    char cmd[3];
+    cmd[0] = reg;
+    cmd[1] = static_cast<char>(val>>8 & 0x00FF);
+    cmd[2] = static_cast<char>(val & 0x00FF);
+    
+    i2c->write(SLV_WRITE, cmd, 1);
+}
+
+int myINA226::Connection_check()
+{
+    char reg = check_reg;
+    char check;
+    
+    i2c->write(SLV_WRITE, &reg, 1);
+    i2c->read(SLV_READ, check, 2);
+    
+    if(check[0] == 0x54 && check[1] == 0x49)return 0;
+    else return 1;
+}
+
+void myINA226::setup(int i)
+{
+    char reg = Ctrl_reg;
+    char cmd[3][3];
+    int j;
+    
+    for(j=0;j<3;j++){cmd[j][0]=reg; cmd[j][1]=0x41;}
+    cmd[0][2]=0xFF;cmd[1][2]=0xFE;cmd[2][2]=0xFD;
+    
+    i2c->write(SLV_WRITE, cmd[i], 3);
+}
+
+void myINA226::get_Voltage_current(float *V_bus, float *current)
+{
+    char reg = V_bus_reg;
+    char buff[2];
+    unsigned int val[2];
+    
+    setup(0);
+    
+    i2c->write(SLV_WRITE, &reg, 1);
+    wait_ms(10);
+    i2c->read(SLV_READ, buff, 2, false);
+    
+    val[0] = (unsigned int)buff[0]<<8;
+    val[1] = (unsigned int)buff[1];
+    
+    *V_bus = (float)(val[0] | val[1]);
+    *V_bus = *V_bus*1.25;
+    
+    reg = current_reg;
+    
+    i2c->write(SLV_WRITE, &reg, 1);
+    wait_ms(10);
+    i2c->read(SLV_READ, buff, 2, false);
+    
+    val[0] = (unsigned int)buff[0]<<8;
+    val[1] = (unsigned int)buff[1];
+    
+    *current = (float)(val[0] | val[1]);
+    *current = *current;//1.25;
+}
+
+void myINA226::get_Shunt_voltage(float *V_shunt)
+{
+    char reg = V_shunt_reg;
+    char buff[2];
+    unsigned int val[2];
+    
+    setup(2);
+    
+    i2c->write(SLV_WRITE, &reg, 1);
+    wait_ms(10);
+    i2c->read(SLV_READ, buff, 2, false);
+    
+    val[0] = (unsigned int)buff[0]<<8;
+    val[1] = (unsigned int)buff[1];
+    
+    *V_shunt = (float)(val[0] | val[1]);
+    *V_shunt = *V_shunt*1.25;
+}
+
+void myINA226::get_Bus_voltage(float *V_bus)
+{
+    char reg = V_bus_reg;
+    char buff[2];
+    unsigned int val[2];
+    
+    setup(1);
+    
+    i2c->write(SLV_WRITE, &reg, 1);
+    wait_ms(10);
+    i2c->read(SLV_READ, buff, 2, false);
+    
+    val[0] = (unsigned int)buff[0]<<8;
+    val[1] = (unsigned int)buff[1];
+    
+    *V_bus = (float)(val[0] | val[1]);
+    *V_bus = *V_bus*1.25;
+}
+
+void myINA226::get_current(float *current)
+{
+
+    char reg = current_reg;
+    char buff[2];
+    unsigned int val[2];
+    
+    i2c->write(SLV_WRITE, &reg, 1);
+    wait_ms(10);
+    i2c->read(SLV_READ, buff, 2, false);
+    
+    val[0] = (unsigned int)buff[0]<<8;
+    val[1] = (unsigned int)buff[1];
+    
+    *current = (float)(val[0] | val[1]);
+    *current = *current;//*1.25;
+}
+        
+void myINA226::get_power(float *power)
+{
+    char reg = power_reg;
+    char buff[2];
+    unsigned int val[2];
+    
+    i2c->write(SLV_WRITE, &reg, 1);
+    wait_ms(10);
+    i2c->read(SLV_READ, buff, 2, false);
+    
+    val[0] = (unsigned int)buff[0]<<8;
+    val[1] = (unsigned int)buff[1];
+    
+    *power = (float)(val[0] | val[1]);
+}