Added Status LED for testing Mainboard

Core/Src/main.c

@@ -1,45 +1,38 @@
 #include "stm32f415xx.h"
 #include "cmsis_os2.h"
 
-/**
- * @brief Set System Clock to 168MHz
- * @note HSE Clock is 8MHz, APB1 Clock is 42MHz, APB2 Clock is 84MHz
- */
-void SysClock_Config() {
-  RCC->CR |= RCC_CR_HSEON; // Enable HSE Clock
-  while (!(RCC->CR & RCC_CR_HSERDY)); // Wait until HSE is ready
-
-  RCC->APB1ENR |= RCC_APB1ENR_PWREN; // Enable Power Interface Clock
-  PWR->CR |= PWR_CR_VOS; // Set Scale 1 mode (max clock frequency)
+void Status_LED(void *argument);
 
-  RCC->CFGR |= RCC_CFGR_HPRE_DIV1; // Set AHB Prescaler to 1
-  RCC->CFGR |= RCC_CFGR_PPRE1_DIV4; // Set APB1 Prescaler to 4
-  RCC->CFGR |= RCC_CFGR_PPRE2_DIV2; // Set APB2 Prescaler to 2
+osThreadId_t StatusLED;
+const osThreadAttr_t StatusLED_attr = {
+  .name = "Status_Task",
+  .priority = osPriorityNormal,
+  .stack_size = 128
+};
 
-  RCC->PLLCFGR = 7 << RCC_PLLCFGR_PLLQ_Pos; // Set PLLQ to 7
-  RCC->PLLCFGR |= 0 << RCC_PLLCFGR_PLLP_Pos; // Set PLLP to 2
-  RCC->PLLCFGR |= 336 << RCC_PLLCFGR_PLLN_Pos; // Set PLLN to 336
-  RCC->PLLCFGR |= 8 << RCC_PLLCFGR_PLLM_Pos; // Set PLLM to 8
-  RCC->PLLCFGR |= RCC_PLLCFGR_PLLSRC_HSE; // Set PLL Source to HSE
-
-  FLASH->ACR |= FLASH_ACR_PRFTEN; // Enable Prefetch Buffer
-  FLASH->ACR |= FLASH_ACR_ICEN; // Enable Instruction Cache
-  FLASH->ACR |= FLASH_ACR_DCEN; // Enable Data Cache
-  FLASH->ACR |= FLASH_ACR_LATENCY_5WS; // Set Flash Latency to 5 Wait States
+int main() {
+  osKernelInitialize(); // Initialize FreeRTOS
+  StatusLED = osThreadNew(Status_LED, NULL, &StatusLED_attr);
 
-  RCC->CR |= RCC_CR_PLLON; // Enable PLL
-  while (!(RCC->CR & RCC_CR_PLLRDY)); // Wait until PLL is ready
+  osKernelStart(); // Start FreeRTOS
+  while(1) {
 
-  RCC->CFGR |= RCC_CFGR_SW_PLL; // Set PLL as System Clock
-  while (!(RCC->CFGR & RCC_CFGR_SWS_PLL)); // Wait until PLL is System Clock
-
-  SystemCoreClock = 168000000; // Set System Clock to 168MHz
+  }
 }
 
-int main() {
-  SysClock_Config();
+/**
+ * @brief Thread for blinking the status led
+ * 
+ * @param argument 
+ */
+void Status_LED(void *argument) {
+  RCC->AHB1ENR |= RCC_AHB1ENR_GPIOCEN;
+  GPIOC->MODER |= GPIO_MODER_MODE13_0;
+  GPIOC->OTYPER &= ~GPIO_OTYPER_OT13;
+  GPIOC->OSPEEDR |= GPIO_OSPEEDR_OSPEED13;
 
   while(1) {
-
+    osDelay(1000);
+    GPIOC->ODR ^= GPIO_ODR_OD13;
   }
 }