68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
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#include "main.h"
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void SystemClock_Config(void);
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int main(void)
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{
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HAL_Init();
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SystemClock_Config();
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GPIO_InitTypeDef GPIO_InitStruct;
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GPIO_InitStruct.Pin = GPIO_PIN_2 | GPIO_PIN_5 | GPIO_PIN_7;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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while (1)
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{
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HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2, GPIO_PIN_SET);
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HAL_Delay(1000);
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HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2, GPIO_PIN_RESET);
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HAL_Delay(1000);
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}
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}
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
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{
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Error_Handler();
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}
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}
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void Error_Handler(void)
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{
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while (1) { }
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}
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#ifdef USE_FULL_ASSERT
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void assert_failed(uint8_t *file, uint32_t line)
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{
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}
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#endif /* USE_FULL_ASSERT */
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