I have a button connected to STM32F405. I am using external interrupt with the button. Inside the callback of the external interrupt I am sending a command to retrieve some data from another microcontroller as a loop. But I am receving only data once.
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) { if(GPIO_Pin == GPIO_PIN_10) { for(volatile int j = 0; j<3000; j++) { char Txbuffer = "Read\n"; HAL_UART_Transmit_IT(&huart2, (uin...