Example for init
mue-barakat opened this issue · comments
can you provide example for init of the EEPROM pins, as no clear documentation for that?
i've also connected A0,A1,A2 to GND with WP too, i'm using CAT24C512WI
my init function
hi2c1.Instance = I2C1;
hi2c1.Init.ClockSpeed = 100000;
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
and my EEPROM seller
https://www.digikey.com/product-detail/en/on-semiconductor/CAT24C512WI-GT3/CAT24C512WI-GT3OSCT-ND/2699493
I have tested your code but it doesn't work as the Is_Device_Ready never returns HAL_OK
Hello. Do you use stm32f1 series,?
yes stm32F103R8Tx
I have the same problem with f1
Please check with another i2c
What do you mean another I2C ?
i can't use the other I2C output as it's already soldered in my PCB
I have 2 demo PCBs both aren't working, every single thing in the processor works except for I2C
I think this is a bug for HAL.
Some time i2c pin does't work.
please try this
///////////////////////
void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
I2Cx_CLK_ENABLE(); <<<<<<<<<<<<<<<<< add here
/##-1- Enable GPIO Clocks #################################################/
/* Enable GPIO TX/RX clock */
I2Cx_SCL_GPIO_CLK_ENABLE();
I2Cx_SDA_GPIO_CLK_ENABLE();
/##-2- Configure peripheral GPIO ##########################################/
/* I2C TX GPIO pin configuration */
GPIO_InitStruct.Pin = I2Cx_SCL_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = I2Cx_SCL_AF;
HAL_GPIO_Init(I2Cx_SCL_GPIO_PORT, &GPIO_InitStruct);
/* I2C RX GPIO pin configuration */
GPIO_InitStruct.Pin = I2Cx_SDA_PIN;
GPIO_InitStruct.Alternate = I2Cx_SDA_AF;
HAL_GPIO_Init(I2Cx_SDA_GPIO_PORT, &GPIO_InitStruct);
/##-3- Enable I2C peripheral Clock ########################################/
/* Enable I2C1 clock */
I2Cx_CLK_ENABLE();
}
//////////////////////
I got no definition for I2Cx_CLK_ENABLE function, only got __HAL_RCC_I2C1_CLK_ENABLE();
void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(i2cHandle->Instance==I2C1 || 1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = I2C_SCL_Pin|I2C_SDA_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* I2C1 clock enable */
__HAL_RCC_I2C1_CLK_ENABLE();
/* I2C1 interrupt Init */
HAL_NVIC_SetPriority(I2C1_EV_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
HAL_NVIC_SetPriority(I2C1_ER_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
I've added this, but still no hope
void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.ClockSpeed = 1000000;
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c1.Init.OwnAddress1 = 0xEE;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
HAL_I2C_MspInit(&hi2c1);
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(i2cHandle->Instance==I2C1 || 1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
__HAL_RCC_I2C1_CLK_ENABLE();
GPIO_InitStruct.Pin = I2C_SCL_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = I2C_SDA_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_INPUT;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* I2C1 clock enable */
__HAL_RCC_I2C1_CLK_ENABLE();
/* I2C1 interrupt Init */
HAL_NVIC_SetPriority(I2C1_EV_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
HAL_NVIC_SetPriority(I2C1_ER_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
please do not enable i2c interrupt and try again.
and test all i2c address in a loop for get ack
and the modes for SCL and SDA are right ? AF_OD and AF_Input ?
its set automatically by cube
Okie, current generated code
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.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__HAL_RCC_I2C1_CLK_ENABLE();
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
static void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.ClockSpeed = 100000;
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK) //always HAL_OK so no error here
{
_Error_Handler(__FILE__, __LINE__);
}
}
my main
MX_GPIO_Init();
MX_I2C1_Init();
for(int i =0x00;i<0xFF;i++)
{
if(HAL_I2C_IsDeviceReady(&hi2c1,i,64,HAL_MAX_DELAY)==HAL_OK){
while (1)
{
HAL_GPIO_TogglePin(GPIOD,GPIO_PIN_2); toggle buzzer
HAL_Delay(1000);
}
}
}
i never get HAL_OK in any round
Its a big problem with f1 and cube.
Please ask on stm32 forum.
thanks alot for your help, last question : shouldn't i enable the I2C interrupts ?
I2c interrupt doesn't need to this library.
hi i using stm32h743 when i want write data stm crashed and stuck,
my i2c code is :::
hi2c1.Instance = I2C1;
//hi2c1.Init.Timing = 100000;
//hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
//hi2c1.Init.Timing = 0x10707DBC;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
i use this library in stm32f4 very well but h7 not working
Hi
First, thank you for your excellent libraries.
I used this library for STM32G030 microcontroller and it worked perfectly. EEPROM was connected to I2C1 and for some reasons I have to use I2C2. Since I changed the I2C, without any other changes in the library and codes, the function isConnected and consequently isDeviceReady returns HAL_ERROR error. Your solution for STM32F1 microcontrollers didn't work either. Do you have any suggestions to fix this problem?
@htan1375 Hello. you are welcome. unfortunately, I have not tried the G series.
@htan1375 I have the G0 serie but i dont have your exact problem. I use I2C1 and the EEPROM works good
hi @htan1375 . only F1 series.
Hi. Thanks to Mr. Askari and @PieterBosElectro. My problem solved and library works well. We had a very strange electronic circuit problem related to EMI noise affecting the I2C pins.