I2C_MODE_CALLBACK

Other Parts Discussed in Thread: TM4C123GH6PM, EK-TM4C123GXL

We have a SE97b chip on our board, and I'm trying to read the eeprom using I2C_MODE_CALLBACK, but the callback is never called.

Code:

uint8_t         g_eepromTxBuffer[1];
uint8_t         g_eepromRxBuffer[256];
I2C_Handle      g_i2c;
I2C_Params      g_i2cParams;
I2C_Transaction g_i2cTransaction;

/*********************************************************************************************************************//**
 * initialize the eeprom reader variables
 *************************************************************************************************************************/
void initEL1042EEPROM()
{
	/// Create I2C for usage
	I2C_Params_init(&g_i2cParams);
	g_i2cParams.bitRate = I2C_100kHz;
	g_i2cParams.transferMode = I2C_MODE_CALLBACK;
	g_i2cParams.transferCallbackFxn = EEPROMCallbackFxn;

	/// Point to the T ambient register and read its 2 bytes
	g_eepromTxBuffer[0] = 0x00;
	g_i2cTransaction.slaveAddress = SE97B_ADDR_EEPROM;
	g_i2cTransaction.writeBuf = g_eepromTxBuffer;
	g_i2cTransaction.writeCount = 1;
	g_i2cTransaction.readBuf = g_eepromRxBuffer;
	g_i2cTransaction.readCount = 256;

	/// set the lens to offline
	lens1.conn = LENS_OFFLINE;
}

/*********************************************************************************************************************//**
 * read the lens eeprom
 *************************************************************************************************************************/
void ReadEL1042EEPROM()
{
	g_i2c = I2C_open(Board_I2C_TMP, &g_i2cParams);
	if (g_i2c == NULL) {
		lens1.conn = LENS_I2C_INIT_ERROR;
#ifdef DEBUG
		System_abort("Error Initializing I2C\n");
#else
		return;
#endif
	}
	else {
		if (I2C_transfer(g_i2c, &g_i2cTransaction)) {
			/// we got the EEPROM, lens is connected
			lens1.conn = LENS_ONLINE;
#ifdef DEBUG
			System_printf("eeprom read\n");
			System_flush();
#endif
		}
		else {
			/// there is no lens connected
			lens1.conn = LENS_OFFLINE;
#ifdef DEBUG
			System_printf("I2C Bus fault\n");
			System_flush();
#endif
		}
		/// Deinitialized I2C
		I2C_close(g_i2c);
	}
}

/*********************************************************************************************************************//**
 * callback
 *************************************************************************************************************************/
void EEPROMCallbackFxn(I2C_Handle handle, I2C_Transaction *transaction, bool result)
{
	initStruct();
}

and on my .cfg file I've declared:

hwi0Params.instance.name = "i2cHwi";
Program.global.i2cHwi = Hwi.create(52, "&EEPROMCallbackFxn", hwi0Params);

initEL1042EEPROM() is called at the beginning of the applications,

and ReadEL1042EEPROM() is called from a Task.

if someone could point me to the right direction I would appreciate.

Thanks