Hi everyone,
I want to turn on a LED on my STM32F4-discovery board
Here is the code :
int main() {
// Enable the GPIO Clock
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
// GPIO Configuration
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_14; // Led 6 Blue selected
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT; // Mod out !
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; // 50 MHZ clock frequency
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP; // Push pull mod
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP; // Pull up
GPIO_Init(GPIOD, &GPIO_InitStruct);
// Turn on the LED
GPIO_SetBits(GPIOD, GPIO_Pin_14);
return 0; }
I'm using uvision 5.13.0.0
It compiles and flash succesfully but nothing happen after. I don't know what is wrong with this. I also tried with this :
STM_EVAL_LEDInit(LED6); STM_EVAL_LEDOn(LED6);
but there is no worked.
Can you help me ? Many thanks :)
One more thing that came to mind. Make sure you have the debug selected and not simulation. I think simulation might be the default mode. You should find the check box in the same place you unchecked run to main.
do some more single stepping and verify that the clock registers are really being written to.