Part Number: TMS570LS1227
Other Parts Discussed in Thread: HALCOGEN, TMP468
Tool/software: Code Composer Studio
Hello everyone,
I'm struggling with setting up a TMS570LS1227PGE to act as a master receiver over i2c for a TI TMP48 (
) temperature sensor. It would be much appreciated if someone could walk me through the HalCoGen setup and CCS code to read this sensor.
I've spent a fair amount of time trying to interface with the sensor myself, below is my code:
while(1){
/* wait until MST bit gets cleared, this takes
* few cycles after Bus Busy is cleared */
//while(i2cIsMasterReady(i2cREG1) != true);
/* Configure address of Slave to talk to */
i2cSetSlaveAdd(i2cREG1, Slave_Address);
/* Set direction to Transmitter */
/* Note: Optional - It is done in Init */
i2cSetDirection(i2cREG1, I2C_TRANSMITTER);
/* Configure Data count */
/* Slave address + Word address write operation before reading */
i2cSetCount(i2cREG1, Receive_data_setup);
/* Set mode as Master */
i2cSetMode(i2cREG1, I2C_MASTER);
/* Set Stop after programmed Count */
i2cSetStop(i2cREG1);
/* Transmit Start Condition */
i2cSetStart(i2cREG1);
/* Send the Word Address */
i2cSend(i2cREG1, 1 , Slave_Word_address);
/* Wait until Bus Busy is cleared */
while(i2cIsBusBusy(i2cREG1) == true);
/* Wait until Stop is detected */
while(i2cIsStopDetected(i2cREG1) == 0);
/* Clear the Stop condition */
i2cClearSCD(i2cREG1);
/*****************************************/
//// Start receving the data From Slave
/*****************************************/
/* wait until MST bit gets cleared, this takes
* few cycles after Bus Busy is cleared */
while(i2cIsMasterReady(i2cREG1) != true);
/* Configure address of Slave to talk to */
i2cSetSlaveAdd(i2cREG1, Slave_Address);
/* Set direction to receiver */
i2cSetDirection(i2cREG1, I2C_RECEIVER);
/* Configure Data count */
/* Note: Optional - It is done in Init, unless user want to change */
i2cSetCount(i2cREG1, DATA_COUNT);
/* Set mode as Master */
i2cSetMode(i2cREG1, I2C_MASTER);
/* Set Stop after programmed Count */
i2cSetStop(i2cREG1);
/* Transmit Start Condition */
i2cSetStart(i2cREG1);
/* Tranmit DATA_COUNT number of data in Polling mode */
i2cReceive(i2cREG1, DATA_COUNT, RX_Data_Master);
/* Wait until Bus Busy is cleared */
while(i2cIsBusBusy(i2cREG1) == true);
/* Wait until Stop is detected */
while(i2cIsStopDetected(i2cREG1) == 0);
/* Clear the Stop condition */
i2cClearSCD(i2cREG1);
asm(" nop");
asm(" nop");
asm(" nop");
vTaskDelay(10000);
}
In HCG, I've enabled all of the i2c interrupts, the i2c pinmux, the i2c VIM channel, and the i2c driver.
Any help, either advice or code is very appreciated.
Thank you!
