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Diffstat (limited to 'stm-init.c')
| -rw-r--r-- | stm-init.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/stm-init.c b/stm-init.c new file mode 100644 index 0000000..aef1b95 --- /dev/null +++ b/stm-init.c @@ -0,0 +1,231 @@ +/** + ****************************************************************************** + * File Name : main.c + * Date : 08/07/2015 17:46:00 + * Description : Main program body + ****************************************************************************** + * + * COPYRIGHT(c) 2015 STMicroelectronics + * + * 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 "stm-init.h" +#ifdef HAL_GPIO_MODULE_ENABLED +#include "stm-led.h" +#endif +#ifdef HAL_SRAM_MODULE_ENABLED +#include "stm-fmc.h" +#endif +#ifdef HAL_UART_MODULE_ENABLED +#include "stm-uart.h" +#endif + +/* Private variables ---------------------------------------------------------*/ + +/* Private function prototypes -----------------------------------------------*/ +static void SystemClock_Config(void); +#ifdef HAL_GPIO_MODULE_ENABLED +static void MX_GPIO_Init(void); +#endif +#ifdef HAL_UART_MODULE_ENABLED +static void MX_USART2_UART_Init(void); +#endif + +void stm_init(void) +{ + + /* MCU Configuration----------------------------------------------------------*/ + + /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ + HAL_Init(); + + /* Configure the system clock */ + SystemClock_Config(); + + /* System interrupt init*/ + /* Sets the priority grouping field */ + HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_0); + HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0); + + /* Initialize all configured peripherals */ +#ifdef HAL_GPIO_MODULE_ENABLED + MX_GPIO_Init(); +#endif +#ifdef HAL_UART_MODULE_ENABLED + MX_USART2_UART_Init(); +#endif +} + +/** System Clock Configuration + * + * HSE crystal at 25 MHz, end result is 180 MHz clock. + */ +static 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); +} + +#if 0 +/** System Clock Configuration + * + * HSI source, end result is 16 MHz SYSCLK + * +*/ +static void old_SystemClock_Config(void) +{ + + RCC_OscInitTypeDef RCC_OscInitStruct; + + __PWR_CLK_ENABLE(); + + __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3); + + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; + RCC_OscInitStruct.HSIState = RCC_HSI_ON; + RCC_OscInitStruct.HSICalibrationValue = 6; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; + HAL_RCC_OscConfig(&RCC_OscInitStruct); + + /* XXX Does this need HAL_PWREx_ActivateOverDrive() and + * HAL_RCC_ClockConfig() to function properly?? + */ +} +#endif + +#ifdef HAL_UART_MODULE_ENABLED +/* USART2 init function */ +static void MX_USART2_UART_Init(void) +{ + extern UART_HandleTypeDef huart2; + + huart2.Instance = USART2; + huart2.Init.BaudRate = USART2_BAUD_RATE; + huart2.Init.WordLength = UART_WORDLENGTH_8B; + huart2.Init.StopBits = UART_STOPBITS_1; + huart2.Init.Parity = UART_PARITY_NONE; + huart2.Init.Mode = UART_MODE_TX_RX; + huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; + huart2.Init.OverSampling = UART_OVERSAMPLING_16; + + if (HAL_UART_Init(&huart2) != HAL_OK) { + /* Initialization Error */ + Error_Handler(); + } +} +#endif + +#ifdef HAL_GPIO_MODULE_ENABLED +/** Configure pins as + * Analog + * Input + * Output + * EVENT_OUT + * EXTI +*/ +static void MX_GPIO_Init(void) +{ + GPIO_InitTypeDef GPIO_InitStruct; + + /* GPIO Ports Clock Enable */ + __GPIOJ_CLK_ENABLE(); + + /* Configure LED GPIO pins PJ1==red, PJ2==yellow, PJ3==green, PJ4==blue */ + GPIO_InitStruct.Pin = LED_RED | LED_YELLOW | LED_GREEN | LED_BLUE; + GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Speed = GPIO_SPEED_LOW; + HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct); +} +#endif + +/** + * @brief This function is executed in case of error occurrence. + * @param None + * @retval None + */ +void Error_Handler(void) +{ +#ifdef HAL_GPIO_MODULE_ENABLED + HAL_GPIO_WritePin(LED_PORT, LED_RED, GPIO_PIN_SET); +#endif + while (1) { ; } +} + +#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****/ |