/nucleo-f401RE/src/ch5/main-ex1.c
C | 167 lines | 69 code | 30 blank | 68 comment | 0 complexity | 614e46fd84615543bead93ddf88614df MD5 | raw file
Possible License(s): GPL-3.0
- /**
- ******************************************************************************
- * File Name : main.c
- * Description : Main program body
- ******************************************************************************
- *
- * COPYRIGHT(c) 2015 Carmine Noviello
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
- /* Includes ------------------------------------------------------------------*/
- #include "stm32f4xx_hal.h"
- #include "diag/Trace.h"
-
- void SystemClock_Config(void);
- static void MX_GPIO_Init(void);
-
- int main(void)
- {
- char msg[] = "Hello STM32 lovers!\n";
-
- HAL_Init();
- SystemClock_Config();
- MX_GPIO_Init();
-
- trace_printf(msg);
-
- while(1) {
- HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5);
- HAL_Delay(500);
- }
- }
-
- /** System Clock Configuration
- */
- void SystemClock_Config(void)
- {
-
- RCC_OscInitTypeDef RCC_OscInitStruct;
- RCC_ClkInitTypeDef RCC_ClkInitStruct;
-
- __PWR_CLK_ENABLE();
-
- __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
-
- RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
- RCC_OscInitStruct.HSIState = RCC_HSI_ON;
- RCC_OscInitStruct.HSICalibrationValue = 16;
- RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
- RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
- RCC_OscInitStruct.PLL.PLLM = 16;
- RCC_OscInitStruct.PLL.PLLN = 336;
- RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
- RCC_OscInitStruct.PLL.PLLQ = 7;
- HAL_RCC_OscConfig(&RCC_OscInitStruct);
-
- RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
- RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
- RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
- RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
- RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
- HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
-
- HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
-
- HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
-
- }
-
- /** Configure pins as
- * Analog
- * Input
- * Output
- * EVENT_OUT
- * EXTI
- PA2 ------> USART2_TX
- PA3 ------> USART2_RX
- */
- void MX_GPIO_Init(void)
- {
-
- GPIO_InitTypeDef GPIO_InitStruct;
-
- /* GPIO Ports Clock Enable */
- __GPIOC_CLK_ENABLE();
- __GPIOH_CLK_ENABLE();
- __GPIOA_CLK_ENABLE();
- __GPIOB_CLK_ENABLE();
-
- /*Configure GPIO pin : PC13 */
- GPIO_InitStruct.Pin = GPIO_PIN_13;
- GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
- /*Configure GPIO pins : PA2 PA3 */
- GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
- GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
- HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
-
- /*Configure GPIO pin : PA5 */
- GPIO_InitStruct.Pin = GPIO_PIN_5;
- GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
- HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
-
- }
-
- /* USER CODE BEGIN 4 */
-
- /* USER CODE END 4 */
-
- #ifdef USE_FULL_ASSERT
-
- /**
- * @brief Reports the name of the source file and the source line number
- * where the assert_param error has occurred.
- * @param file: pointer to the source file name
- * @param line: assert_param error line source number
- * @retval None
- */
- void assert_failed(uint8_t* file, uint32_t line)
- {
- /* USER CODE BEGIN 6 */
- /* User can add his own implementation to report the file name and line number,
- ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
- /* USER CODE END 6 */
-
- }
-
- #endif
-
- /**
- * @}
- */
-
- /**
- * @}
- */
-
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/