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make and main.c changes to support STM32F446RE Nucelo board #1

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make and main.c changes to support STM32F446RE Nucelo board #1

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2 changes: 1 addition & 1 deletion Makefile
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
DEVICE = STM32F407xE
DEVICE = STM32F446RE
FLASH = 0x08000000

USE_ST_CMSIS = true
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13 changes: 12 additions & 1 deletion src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7,15 +7,21 @@ static void delay (unsigned int time) {
}

int main (void) {
// Turn on the GPIOC peripheral
// Turn on the GPIOx peripheral
#if defined(STM32F446xx)
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
#else
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOCEN;
#endif

// Put pin 13 in general purpose output mode
// Note: The only difference here is the name of the register in the
// definition, both lines have the same effect.
#if defined(STM32F413xx) || \
defined(STM32F423xx)
GPIOC->MODER |= GPIO_MODER_MODE13_0;
#elif defined(STM32F446xx)
GPIOA->MODER |= GPIO_MODER_MODE5_0;
#else
GPIOC->MODER |= GPIO_MODER_MODER13_0;
#endif
Expand All @@ -25,6 +31,8 @@ int main (void) {
#if defined(STM32F413xx) || \
defined(STM32F423xx)
GPIOC->BSRR = GPIO_BSRR_BR_13;
#elif defined(STM32F446xx)
GPIOA->BSRR = GPIO_BSRR_BR_5;
#else
GPIOC->BSRR = GPIO_BSRR_BR13;
#endif
Expand All @@ -35,6 +43,8 @@ int main (void) {
#if defined(STM32F413xx) || \
defined(STM32F423xx)
GPIOC->BSRR = GPIO_BSRR_BS_13;
#elif defined(STM32F446xx)
GPIOA->BSRR = GPIO_BSRR_BS_5;
#else
GPIOC->BSRR = GPIO_BSRR_BS13;
#endif
Expand All @@ -45,3 +55,4 @@ int main (void) {
// Return 0 to satisfy compiler
return 0;
}