Kuvée / Base_I2C_Device

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Base_I2C_Device.cpp

Committer:
glansberry
Date:
2015-05-06
Revision:
0:fa683f936086
Child:
1:700cce0a0ca8

File content as of revision 0:fa683f936086:

#include "Base_I2C_Device.h"




uint8_t Base_I2C_Device::ReadRegisterByte(uint8_t reg)
{
char temp_write[1];
char temp_read[1];

        temp_write[0] = reg;
        i2c.write(m_address, temp_write, 1, false); // no stop (unsure)
        i2c.read(m_address, temp_read, 1, 0);
                        
        return (uint8_t)temp_read[0];
}
uint16_t Base_I2C_Device::ReadRegisterWord(uint8_t reg)
{
char temp_write[1];
char temp_read[2];

        temp_write[0] = reg;
        i2c.write(m_address, temp_write, 1, false); // no stop (unsure)
        i2c.read(m_address, temp_read, 2, 0);
        
        return (((uint16_t)temp_read[0]) << 8) | (uint16_t)temp_read[1];

}
int Base_I2C_Device::WriteRegister(uint8_t reg, uint8_t value)   
{
    char temp_write[2];
    
    temp_write[0] = reg;
    temp_write[1] = value;   //check order of these (endianness)
    i2c.write(m_address, temp_write, 2, 0);    
    return 0;
}

int Base_I2C_Device::WriteRegister(uint8_t reg, uint16_t value)   
{
    char temp_write[3];
    
    temp_write[0] = reg;
    temp_write[1] = value>>8;   
    temp_write[2] = (value & 0xFF);
    i2c.write(m_address, temp_write, 3, 0);    
    return 0;
}