The issue with HAL_I2C_EnableListen_IT in I2C Slave Data Transmission using STM-HAL

[zeynepdicle]

I am using STM32G050 and I also tried with STM32L476. I am transmitting data as an I2C Slave using STM-HAL. However, when I use HAL_I2C_EnableListen_IT, the transmission is an error. I can't read values and see the logic analyzer. HAL_I2C_DisableListen_IT allows successful data transmission. I am trying to understand the underlying reasons for this behavior. Why I can't transmit values?
uint8_t packed1[10] = { 0xAA, 0x01, 0x07, 0x01, 0x12, 0x55, 0x12, 0x01, 0xAA, 0x2B };
uint8_t packed2[10] = { 0xBB, 0x01, 0x07, 0x01, 0x12, 0x55, 0x12, 0x01, 0xAA, 0x2B };

HAL_I2C_EnableListen_IT(&hi2c2);
HAL_I2C_Slave_Transmit(&hi2c2, packed1, 10, HAL_MAX_DELAY);
HAL_Delay(300);

HAL_I2C_DisableListen_IT(&hi2c2);
HAL_I2C_Slave_Transmit(&hi2c2, packed2, 10, HAL_MAX_DELAY);
HAL_Delay(300);

[TDK · Accepted solution]

You're not using the library according to the instructions. Don't call HAL_I2C_EnableListen_IT when you're using blocking transfer functions.

    *** Polling mode IO operation ***
    =================================
    [..]
      (+) Transmit in master mode an amount of data in blocking mode using @ref HAL_I2C_Master_Transmit()
      (+) Receive in master mode an amount of data in blocking mode using @ref HAL_I2C_Master_Receive()
      (+) Transmit in slave mode an amount of data in blocking mode using @ref HAL_I2C_Slave_Transmit()
      (+) Receive in slave mode an amount of data in blocking mode using @ref HAL_I2C_Slave_Receive()

[zeynepdicle]

Thank you for answering. 
When I transmit it like this  I can't transmit it again

HAL_I2C_EnableListen_IT(&hi2c2);

while (1) {

HAL_I2C_Slave_Transmit_IT(&hi2c2, packed, 10);

HAL_Delay(300);

[TDK]

Why are you calling HAL_I2C_EnableListen_IT?

Perhaps go off of a known working example:

https://github.com/STMicroelectronics/STM32CubeL4/blob/93f2cde30d17996651d7b31f7091ab3dfe2f99bb/Projects/NUCLEO-L432KC/Examples/I2C/I2C_TwoBoards_AdvComIT/Src/main.c

[res_queen]

b

[zeynepdicle]

@TDKI figured out my problem. I took the structure here as a reference.

https://github.com/m5stack/M5Unit-NCIR2-Internal-FW/blob/8e923d8c0f5f109259568da6fdb6a2444de74f6e/Core/i2c_ex/i2c_ex.c