diff options
-rw-r--r-- | stm-init.c | 43 | ||||
-rw-r--r-- | stm-init.h | 2 |
2 files changed, 45 insertions, 0 deletions
@@ -48,6 +48,9 @@ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ +#ifdef CRYPTECH_USE_HSE_CLOCK +static void SystemClock_Config(void); +#endif #ifdef HAL_GPIO_MODULE_ENABLED static void MX_GPIO_Init(void); #endif @@ -61,6 +64,10 @@ void stm_init(void) /* MCU Configuration----------------------------------------------------------*/ +#ifdef CRYPTECH_USE_HSE_CLOCK + SystemClock_Config(); +#endif + /* System interrupt init*/ /* Sets the priority grouping field */ HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_0); @@ -76,6 +83,42 @@ void stm_init(void) #endif } +#ifdef CRYPTECH_USE_HSE_CLOCK +/** System Clock Configuration + * + * HSE crystal at 25 MHz, end result is 180 MHz clock. + */ +void SystemClock_Config(void) +{ + RCC_ClkInitTypeDef RCC_ClkInitStruct; + RCC_OscInitTypeDef RCC_OscInitStruct; + + __PWR_CLK_ENABLE(); + + __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); + + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; + RCC_OscInitStruct.HSEState = RCC_HSE_ON; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; + RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; + RCC_OscInitStruct.PLL.PLLM = 25; + RCC_OscInitStruct.PLL.PLLN = 360; + RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; + RCC_OscInitStruct.PLL.PLLQ = 4; + HAL_RCC_OscConfig(&RCC_OscInitStruct); + + HAL_PWREx_ActivateOverDrive(); + + RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2; + RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; + RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; + RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; + RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; + HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5); +} +#endif + + #ifdef HAL_UART_MODULE_ENABLED /* USART1 init function */ static void MX_USART1_UART_Init(void) @@ -43,4 +43,6 @@ extern void Error_Handler(void); #define HAL_Delay osDelay +#define CRYPTECH_USE_HSE_CLOCK + #endif /* __STM_INIT_H */ |