Hi,
I am trying to communicate between 2 Nucleo boards(Nucleo-F446RE) using I2C in interrupt mode,
- when I am sending data from master to slave in Interrupt mode it works fine
- But when I try to send the data back from slave to master, it fails and while debugging the Slave it shows HAL_BUSY.
Its been several days but the problem has not been solved since, I would really appreciate your help in this issue
I'm using:
- Cube MX version 4.1.0.0
- STM Cube ide version 1.11.2
In Master device program I've defined the following in the while loop:
if(HAL_GPIO_ReadPin (GPIOC, GPIO_PIN_13) == GPIO_PIN_RESET)
{
Dummy_var++;
while(HAL_GPIO_ReadPin (GPIOC, GPIO_PIN_13) == GPIO_PIN_RESET)
{
for(int i=0; i< RxSIZE; i++){
TxData[i] = i+Dummy_var;
}
}
//Turn LED ON
Tx_Function(&hi2c1);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);
// while(HAL_I2C_GetState(&hi2c1) != HAL_I2C_STATE_READY){}
Rx_Function(&hi2c1);
}
else
{
//Turn LED OFF
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
//HAL_I2C_Master_Receive_IT(&hi2c1, slaveADDR, I2C_REGISTERS, 16);
}
I'm attaching my C code for reference below.
Thanks & Regards
