Posted on April 03, 2018 at 15:22 Hi
I got a problem with a switch in my MCU. I use custom board with STM32F030C8T6.
This here is part of my program:
void rozkaz3(void) {
switch(bufor[3]){
case 0:
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_RESET);
HAL_Delay(1000);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_SET);
break;
case 1: HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3, GPIO_PIN_RESET);
HAL_Delay(1000);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3, GPIO_PIN_SET);
break;
case 2:
HAL_GPIO_WritePin(GPIOF, GPIO_PIN_7, GPIO_PIN_RESET);
HAL_Delay(1000);
HAL_GPIO_WritePin(GPIOF, GPIO_PIN_7, GPIO_PIN_SET);
break;
case 3:
HAL_GPIO_WritePin(GPIOF, GPIO_PIN_6, GPIO_PIN_RESET);
HAL_Delay(1000);
HAL_GPIO_WritePin(GPIOF, GPIO_PIN_6, GPIO_PIN_SET);
break;
case 5:
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_11, GPIO_PIN_RESET);
HAL_Delay(1000);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_11, GPIO_PIN_SET);
break;
case 6:
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_RESET);
HAL_Delay(1000);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_SET);
break;
case 7:
case 4:
default:
break;
case 12:
NVIC_SystemReset();
break;
it switches on and off outputs i chose based on number. My board has 6 outputs. Case 4 and case 7 are not configured and not connected.
If i order case 0,1,2,3,5,6,11,12 all works well.
If i order case 4 or 7 my program works on case 0 then case 4/7. If i delete case 0 it will work on case 1 and then case 4/7 and so on.
It works first available case in switch then case i ordered.
Now if i change only this:
case 7:
case 4:
default:
HAL_Delay(1000);
break;
I works ok.
And with HAL_Delay(1) its not working again.
Whats happening and how to make it work right without HAL_Delay ?
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