/**************************************************************************************************
* Function ADXL345_Write()
* -------------------------------------------------------------------------------------------------
* Overview: Function write byte of data to ADXL345
* Input: register address, data
* Output: Nothing
**************************************************************************************************/
void ADXL345_Write(unsigned short address, unsigned short data1)
{
I2C2_Start(); // issue I2C start signal
I2C2_Write(0x3A); // send byte via I2C (device address + W)
I2C2_Write(address); // send byte (address of the location)
I2C2_Write(data1); // send data (data to be written)
I2C2_Stop(); // issue I2C stop signal
}
void TS_Write (unsigned char reg, unsigned char num, unsigned int val) {
I2C2_Start();
I2C2_Addr(0x82 | 0);
I2C2_Write(reg); /* Register to be written */
while (num--) {
I2C2_Write(val & 0xFF);
val >>= 8;
}
I2C2_Stop();
}
/**************************************************************************************************
* Function ADXL345_Read()
* -------------------------------------------------------------------------------------------------
* Overview: Function read byte of data from ADXL345
* Input: register address
* Output: data from addressed register in ADXL345
**************************************************************************************************/
unsigned short ADXL345_Read(unsigned short address)
{
unsigned short tmp = 0;
I2C2_Start(); // issue I2C start signal
I2C2_Write(0x3A); // send byte via I2C (device address + W)
I2C2_Write(address); // send byte (data address)
I2C2_Start(); // issue I2C signal repeated start
I2C2_Write(0x3B); // send byte (device address + R)
tmp = I2C2_Read(1); // Read the data (NO acknowledge)
I2C2_Stop(); // issue I2C stop signal
return tmp;
}
unsigned int TS_Read (unsigned char reg, unsigned char num) {
unsigned int res = 0;
I2C2_Start();
I2C2_Addr(0x82 | 0);
I2C2_Write(reg); /* Register to be read */
I2C2_Start();
I2C2_Addr(0x82 | 1);
while (num--) {
res <<= 8;
res |= I2C2_Read ((num >= 1));
}
I2C2_Stop();
return(res);
}
