Posted on March 10, 2018 at 17:27Hello friends.
I have uart. And I need generate callback function.
For example. I send from PC 0x01 and I need generate call back function 'HelloWorld'. Send 0x02 generate 'SunShine'.
So I receive char in interrupt:
void UART4_IRQHandler(void)
{
if (LL_USART_IsActiveFlag_RTO(UART4))
{
LL_USART_ClearFlag_RTO(UART4);
UART_generate_call_back(dma_rx_buff);
/* here clear flags, .........*/
}
}
/* here is my definitions */
&sharpdefine FIRST_CALL 0x01
&sharpdefine SECOND_CALL 0x02
function generate call back:
void UART_generate_call_back(uint8_t *input_buffer)
{
if(
input_buffer
[0] == 0x01)
UART_HandlerTable(FIRST_CALL);
if(
input_buffer
[0] == 0x02)
UART_HandlerTable(SECOND_CALL);
}
and my function to generate callback:
void UART_callback(uint32_t InterruptID, InterruptHandler Handler)
{
UART_HandlerTable = Handler;
}
other function and declaration:
typedef void (*InterruptHandler) (uint32_t uart_interrupt);
InterruptHandler UART_HandlerTable;
And in my main:
void HelloWorld();
void SunShine();
int main(void)
{
/* init system clock */
SystemClock_Config();
/* Init UART5 and DMA1 */
MX_UART4_Init();
/* Init LED */
InitLed();
UART_callback(
FIRST_CALL
, (InterruptHandler)
HelloWorld
);
UART_callback( SECOND
_CALL
, (InterruptHandler)
SunShine
);
while (1)
{
LL_mDelay(1);
time++;
if(time == 500)
{
LL_GPIO_TogglePin(MCU_LED_PORT, MCU_LED_PIN);
time = 0;
}
}
void HelloWorld()
{
usart_puts('Hello world\r\n');
}
void SunShine()
{
usart_puts('Sunshine\r\n');
}
And when I send 0x01 by UART callback function isn't working.
Any idea, what is wrong?
#callback #nucleo-f767zi
