Posted on July 10, 2015 at 06:33Hi
I am using STM32L05x for my project. I interfaced TLC59116 with MCU on I2C. Issue is, I can send address on but is slave is not acknowledge to the address.
Slave Address: 0xC0
I am sharing my I2C related code for reference.
static void I2c_Driver_Init(void)
{
/*♯♯-1- Configure the I2C peripheral ♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯*/
I2CxHandle.Instance = I2C1;
I2CxHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
I2CxHandle.Init.Timing = 0x10A13E56;
I2CxHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
I2CxHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
I2CxHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
I2CxHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED;
I2CxHandle.Init.OwnAddress1 = I2C_ADDRESS;
I2CxHandle.Init.OwnAddress2 = 0;
if(HAL_I2C_Init(&I2CxHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF1_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* Peripheral interrupt init*/
HAL_NVIC_SetPriority(I2C1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(I2C1_IRQn);
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
Please let me know I am missing something?
#stm32l051x-i2c
