203 lines
5.3 KiB
C
203 lines
5.3 KiB
C
/* 开发板硬件相关头文件 */
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#include "board.h"
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/* RT-Thread相关头文件 */
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#include <rthw.h>
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#include <rtthread.h>
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#if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
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#define RT_HEAP_SIZE 1024
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/* 从内部SRAM里面分配一部分静态内存来作为rtt的堆空间，这里配置为4KB */
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static uint32_t rt_heap[RT_HEAP_SIZE];
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RT_WEAK void *rt_heap_begin_get(void)
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{
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return rt_heap;
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}
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RT_WEAK void *rt_heap_end_get(void)
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{
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return rt_heap + RT_HEAP_SIZE;
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}
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#endif
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/**
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* @brief 开发板硬件初始化函数
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* @param 无
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* @retval 无
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*
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* @attention
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* RTT把开发板相关的初始化函数统一放到board.c文件中实现，
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* 当然，你想把这些函数统一放到main.c文件也是可以的。
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*/
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void rt_hw_board_init()
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{
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/* 系统时钟初始化成480MHz */
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SystemClock_Config();
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/* 初始化SysTick */
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HAL_SYSTICK_Config( HAL_RCC_GetSysClockFreq() / RT_TICK_PER_SECOND );
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/* 硬件BSP初始化统统放在这里，比如LED，串口，LCD等 */
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/* LED 端口初始化 */
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LED_GPIO_Config();
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/* usart 端口初始化 */
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DEBUG_USART_Config();
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/* KEY 端口初始化 */
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Key_GPIO_Config();
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/* 调用组件初始化函数 (use INIT_BOARD_EXPORT()) */
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#ifdef RT_USING_COMPONENTS_INIT
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rt_components_board_init();
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#endif
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#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
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#endif
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#if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
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rt_system_heap_init(rt_heap_begin_get(), rt_heap_end_get());
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#endif
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}
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/**
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* @brief SysTick中断服务函数
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* @param 无
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* @retval 无
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*
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* @attention
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* SysTick中断服务函数在固件库文件stm32f10x_it.c中也定义了，而现在
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* 在board.c中又定义一次，那么编译的时候会出现重复定义的错误，解决
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* 方法是可以把stm32f10x_it.c中的注释或者删除即可。
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*/
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void SysTick_Handler(void)
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{
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/* 进入中断 */
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rt_interrupt_enter();
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/* 更新时基 */
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rt_tick_increase();
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/* 离开中断 */
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rt_interrupt_leave();
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}
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/**
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* @brief 重映射串口DEBUG_USARTx到rt_kprintf()函数
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* Note：DEBUG_USARTx是在bsp_usart.h中定义的宏，默认使用串口1
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* @param str：要输出到串口的字符串
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* @retval 无
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*
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* @attention
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*
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*/
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void rt_hw_console_output(const char *str)
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{
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/* 进入临界段 */
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rt_enter_critical();
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/* 直到字符串结束 */
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while (*str!='\0')
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{
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/* 换行 */
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if (*str=='\n')
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{
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//HAL_UART_Transmit( &UartHandle,(uint8_t *)'\r',1,1000);
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}
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HAL_UART_Transmit( &UartHandle,(uint8_t *)(str++),1,1000);
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}
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/* 退出临界段 */
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rt_exit_critical();
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}
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/**
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* @brief System Clock 配置
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* system Clock 配置如下:
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 480000000 (CPU Clock)
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* HCLK(Hz) = 240000000 (AXI and AHBs Clock)
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* AHB Prescaler = 2
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* D1 APB3 Prescaler = 2 (APB3 Clock 120MHz)
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* D2 APB1 Prescaler = 2 (APB1 Clock 120MHz)
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* D2 APB2 Prescaler = 2 (APB2 Clock 120MHz)
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* D3 APB4 Prescaler = 2 (APB4 Clock 120MHz)
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 5
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* PLL_N = 192
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* PLL_P = 2
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* PLL_Q = 4
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* PLL_R = 2
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* VDD(V) = 3.3
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* Flash Latency(WS) = 4
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* @param None
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* @retval None
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*/
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static void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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HAL_StatusTypeDef ret = HAL_OK;
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/*使能供电配置更新 */
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MODIFY_REG(PWR->CR3, PWR_CR3_SCUEN, 0);
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/* 当器件的时钟频率低于最大系统频率时，电压调节可以优化功耗，
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关于系统频率的电压调节值的更新可以参考产品数据手册。 */
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
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/* 启用HSE振荡器并使用HSE作为源激活PLL */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.HSIState = RCC_HSI_OFF;
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RCC_OscInitStruct.CSIState = RCC_CSI_OFF;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 5;
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RCC_OscInitStruct.PLL.PLLN = 192;
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RCC_OscInitStruct.PLL.PLLP = 2;
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RCC_OscInitStruct.PLL.PLLR = 2;
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RCC_OscInitStruct.PLL.PLLQ = 4;
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RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
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RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
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ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* 选择PLL作为系统时钟源并配置总线时钟分频器 */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | \
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RCC_CLOCKTYPE_HCLK | \
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RCC_CLOCKTYPE_D1PCLK1 | \
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RCC_CLOCKTYPE_PCLK1 | \
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RCC_CLOCKTYPE_PCLK2 | \
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RCC_CLOCKTYPE_D3PCLK1);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
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RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
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ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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}
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/****************************END OF FILE***************************/
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