I2C acknowledgment PROBLEM WITH AT24C1024 EEPROM

Other Parts Discussed in Thread: TM4C123GH6PM

Hello Everyone,

             Am using  TM4C123GH6PM in our own custom board .

            We have I2C interface with AT24C1024 EEPROM. but the problem is  while am trying to write or read Eeprom .

            it always gives below errors

            I2C_MASTER_ERR_ADDR_ACK 

            I2C_MASTER_ERR_DATA_ACK 

           I attached my code below ..

 static void I2c0_Initialize(void) {

	ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C0);

	ROM_SysCtlPeripheralReset(SYSCTL_PERIPH_I2C0);

	ROM_GPIOPinConfigure(GPIO_PB2_I2C0SCL);

	ROM_GPIOPinConfigure(GPIO_PB3_I2C0SDA);

	ROM_GPIOPinTypeI2C(GPIO_PORTB_BASE, GPIO_PIN_3);

	ROM_GPIOPinTypeI2CSCL(GPIO_PORTB_BASE, GPIO_PIN_2);

	ROM_I2CMasterInitExpClk(I2C0_BASE, SysCtlClockGet(), TRUE);

	ROM_SysCtlDelay(1000);

//	ROM_GPIOPadConfigSet(GPIO_PORTB_BASE, GPIO_PIN_2, GPIO_STRENGTH_2MA,
//	GPIO_PIN_TYPE_STD_WPU);

//	ROM_GPIOPadConfigSet(GPIO_PORTB_BASE, GPIO_PIN_3, GPIO_STRENGTH_2MA,
//	GPIO_PIN_TYPE_OD);

	ROM_I2CMasterTimeoutSet(I2C0_BASE, 0xFF);

	ROM_I2CMasterEnable(I2C0_BASE);

//  for ic1

	st_i2c[0].ui32_baseaddr = I2C1_BASE;

	st_i2c[0].ui16_startaddr = NULL;

	st_i2c[0].ui8_length = NULL;

	st_i2c[0].ui8_ptrdata = NULL;

	st_i2c[0].ui8_slaveaddr = IC1_ADDRESS;

//  for ic2

	st_i2c[1].ui32_baseaddr = I2C1_BASE;

	st_i2c[1].ui16_startaddr = NULL;

	st_i2c[1].ui8_length = NULL;

	st_i2c[1].ui8_ptrdata = NULL;

	st_i2c[1].ui8_slaveaddr = IC2_ADDRESS;

	Uarts_transmit(UART0_BASE, "I2C0_INIT \r\n", 12);

}

static unsigned char I2c_PageWrite(s_i2c * restrict st_arg1ptr) {

	if (st_arg1ptr != NULL) {

		u_us_uc un_us_uc;

		uint32_t ui32_error = NULL;

		Uarts_transmit(UART0_BASE, "5\r\n", 3);

		un_us_uc.us_value = NULL;

		while (ROM_I2CMasterBusBusy(st_arg1ptr->ui32_baseaddr)) {

		}

		ROM_I2CMasterSlaveAddrSet(st_arg1ptr->ui32_baseaddr,
				st_arg1ptr->ui8_slaveaddr, FALSE);

		SysCtlDelay(10000);

		while (ROM_I2CMasterBusBusy(st_arg1ptr->ui32_baseaddr)) {

		}

		//	if (!I2c_BusyCheck(st_arg1ptr->ui32_baseaddr))
		//		return FALSE;

		// to write a address

		// 1073872896
		un_us_uc.us_value = st_arg1ptr->ui16_startaddr;

		//Msb

		ROM_I2CMasterDataPut(st_arg1ptr->ui32_baseaddr, un_us_uc.uc_value[1]);

		//	ROM_I2CMasterControl(st_arg1ptr->ui32_baseaddr,
		//	I2C_MASTER_CMD_BURST_SEND_START);

		ROM_I2CMasterControl(st_arg1ptr->ui32_baseaddr,
		I2C_MASTER_CMD_BURST_SEND_START);

		SysCtlDelay(1000);

		//	while (ROM_I2CMasterBusBusy(st_arg1ptr->ui32_baseaddr)) {

		//	Uarts_transmit(UART0_BASE, "B", 1);
		//}

		if (I2c_BusyCheck(st_arg1ptr->ui32_baseaddr) == FALSE)
			return FALSE;

		ui32_error = ROM_I2CMasterErr(st_arg1ptr->ui32_baseaddr);

		if (ui32_error != I2C_MASTER_ERR_NONE) {

			return FALSE;
		}
		//Lsb

		ROM_I2CMasterDataPut(st_arg1ptr->ui32_baseaddr, un_us_uc.uc_value[0]);

		ROM_I2CMasterControl(st_arg1ptr->ui32_baseaddr,
		I2C_MASTER_CMD_BURST_SEND_CONT);

		SysCtlDelay(1000);

		if (I2c_BusyCheck(st_arg1ptr->ui32_baseaddr) == FALSE)
			return FALSE;

		if (ROM_I2CMasterErr(st_arg1ptr->ui32_baseaddr) != I2C_MASTER_ERR_NONE)
			return FALSE;

		// Data transmit

		uint16_t ui16_temp1 = NULL;

		for (ui16_temp1 = NULL; ui16_temp1 < st_arg1ptr->ui8_length;
				ui16_temp1++) {

			ROM_I2CMasterDataPut(st_arg1ptr->ui32_baseaddr,
					*(st_arg1ptr)->ui8_ptrdata + ui16_temp1);

			if (ui16_temp1 == (st_arg1ptr->ui8_length - 1))
				ROM_I2CMasterControl(st_arg1ptr->ui32_baseaddr,
				I2C_MASTER_CMD_BURST_SEND_FINISH);
			else
				ROM_I2CMasterControl(st_arg1ptr->ui32_baseaddr,
				I2C_MASTER_CMD_BURST_SEND_CONT);

			SysCtlDelay(1000);

			if (!I2c_BusyCheck(st_arg1ptr->ui32_baseaddr))
				return FALSE;

			if (ROM_I2CMasterErr(
					st_arg1ptr->ui32_baseaddr) != I2C_MASTER_ERR_NONE)
				return FALSE;
		}

		Uarts_transmit(UART0_BASE, "6\r\n", 3);

		return TRUE;

	}
	return FALSE;
}

  What could be the problem .. can any one give suggestion....

Thanks 

Ramasubbu.V