501 lines
15 KiB
C
501 lines
15 KiB
C
/**
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******************************************************************************
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* @file : mf_config.c
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* @brief : MCU FUNCTION CONFIG
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******************************************************************************
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* @attention
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*
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* Copyright (c) [2021] [Fudan Microelectronics]
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* THIS SOFTWARE is licensed under Mulan PSL v2.
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* can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "mf_config.h"
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/* Private function prototypes -----------------------------------------------*/
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/**
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* @brief CMU_XTLF Initialization function
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* @param void
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* @retval None
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*/
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void MF_CMU_XTLF_Init(void)
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{
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FL_VAO_XTLF_InitTypeDef XTLF_InitStruct;
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XTLF_InitStruct.driveMode = FL_VAO_XTLF_DRIVE_LEVEL_1;
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XTLF_InitStruct.workingCurrentMode = FL_VAO_XTLF_WORK_CURRENT_450NA;
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FL_VAO_XTLF_Init(VAO, &XTLF_InitStruct);
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}
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/**
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* @brief I2C_MASTER Initialization function
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* @param void
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* @retval None
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*/
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void MF_I2C_MASTER_Init(void)
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{
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FL_GPIO_InitTypeDef GPIO_InitStruct;
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FL_I2C_MasterMode_InitTypeDef I2C_InitStruct;
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/* PA11 I2C_SCL */
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GPIO_InitStruct.pin = FL_GPIO_PIN_11;
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GPIO_InitStruct.mode = FL_GPIO_MODE_OUTPUT;
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GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_OPENDRAIN;
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GPIO_InitStruct.pull = FL_DISABLE;
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GPIO_InitStruct.remapPin = FL_DISABLE;
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GPIO_InitStruct.analogSwitch = FL_DISABLE;
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FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/* PA12 I2C_SDA */
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GPIO_InitStruct.pin = FL_GPIO_PIN_12;
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GPIO_InitStruct.mode = FL_GPIO_MODE_OUTPUT;
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GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_OPENDRAIN;
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GPIO_InitStruct.pull = FL_DISABLE;
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GPIO_InitStruct.remapPin = FL_DISABLE;
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GPIO_InitStruct.analogSwitch = FL_DISABLE;
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FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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I2C_InitStruct.clockSource = FL_CMU_I2C_CLK_SOURCE_APBCLK;
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I2C_InitStruct.baudRate = 100000;
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FL_I2C_MasterMode_Init(I2C, &I2C_InitStruct);
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}
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/**
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* @brief SWD_IO Initialization function
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* @param void
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* @retval None
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*/
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void MF_SWD_IO_Init(void)
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{
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FL_GPIO_InitTypeDef GPIO_InitStruct;
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/* PD7 SWD_SWCLK */
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GPIO_InitStruct.pin = FL_GPIO_PIN_7;
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GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
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GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.pull = FL_DISABLE;
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GPIO_InitStruct.remapPin = FL_DISABLE;
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GPIO_InitStruct.analogSwitch = FL_DISABLE;
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FL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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/* PD8 SWD_SWDIO */
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GPIO_InitStruct.pin = FL_GPIO_PIN_8;
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GPIO_InitStruct.mode = FL_GPIO_MODE_DIGITAL;
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GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.pull = FL_DISABLE;
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GPIO_InitStruct.remapPin = FL_DISABLE;
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GPIO_InitStruct.analogSwitch = FL_DISABLE;
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FL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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}
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/**
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* @brief Clock Initialization.
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* @retval None
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*/
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void MF_Clock_Init(void)
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{
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/* Initial CDIF */
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FL_CDIF_EnableCPUToVAO(CDIF);
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FL_CDIF_EnableVAOToCPU(CDIF);
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/* Initial RTCA Adjust Value */
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FL_CMU_EnableGroup1BusClock(FL_CMU_GROUP1_BUSCLK_RTCA);
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FL_RTCA_WriteAdjustValue(RTCA, 0);
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FL_CMU_DisableGroup1BusClock(FL_CMU_GROUP1_BUSCLK_RTCA);
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/* Initial RTCB Adjust Value */
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FL_RTCB_WriteAdjustValue(RTCB, 0);
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/* Initial XTLF */
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MF_CMU_XTLF_Init();
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FL_VAO_XTLF_Enable(VAO);
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FL_DelayMs(1000);
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/* Initial Low Speed Clock */
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FL_CMU_SetLSCLKClockSource(FL_CMU_LSCLK_CLK_SOURCE_RCLP);
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/* Initial RCHF */
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FL_CMU_RCHF_WriteTrimValue(RCHF8M_TRIM);
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FL_CMU_RCHF_SetFrequency(FL_CMU_RCHF_FREQUENCY_8MHZ);
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FL_CMU_RCHF_Enable();
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/* Initial System Clock */
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FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_0CYCLE); /* 设置FLASH读等待为 0 个周期 */
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FL_CMU_SetSystemClockSource(FL_CMU_SYSTEM_CLK_SOURCE_RCHF); /* 设置系统主时钟为 RCHF */
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FL_CMU_SetAHBPrescaler(FL_CMU_AHBCLK_PSC_DIV1);
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FL_CMU_SetAPBPrescaler(FL_CMU_APBCLK_PSC_DIV1);
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/* Initial CDIF Clock Prescaler */
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FL_CDIF_SetPrescaler(CDIF, FL_CDIF_PSC_DIV1);
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SystemCoreClockUpdate();
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}
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void MF_Config_Init(void)
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{
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/* 配置普通GPIO工作模式 */
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FL_GPIO_InitTypeDef GPIO_InitStruct;
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FL_BSTIM32_InitTypeDef TimerBase_InitStruct;
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FL_NVIC_ConfigTypeDef InterruptConfigStruct;
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GPIO_InitStruct.pin = FL_GPIO_PIN_0;
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GPIO_InitStruct.mode = FL_GPIO_MODE_OUTPUT;
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GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.pull = FL_ENABLE;
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GPIO_InitStruct.remapPin = FL_DISABLE;
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GPIO_InitStruct.analogSwitch = FL_DISABLE;
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/* 初始化LED状态灯 */
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FL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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/* 断电、报警功能GPIO */
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GPIO_InitStruct.pin = FL_GPIO_PIN_10|FL_GPIO_PIN_11;
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FL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* 调试模式输入GPIO */
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GPIO_InitStruct.mode = FL_GPIO_MODE_INPUT;
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GPIO_InitStruct.pin = FL_GPIO_PIN_8|FL_GPIO_PIN_9|FL_GPIO_PIN_10|FL_GPIO_PIN_11;
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FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/* 使用BSTIM32作为时基产生20ms一次中断 */
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TimerBase_InitStruct.prescaler = 127;
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TimerBase_InitStruct.autoReload = 9999;
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TimerBase_InitStruct.autoReloadState = FL_ENABLE;
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TimerBase_InitStruct.clockSource = FL_CMU_BSTIM32_CLK_SOURCE_APBCLK;
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FL_BSTIM32_Init(BSTIM32, &TimerBase_InitStruct);
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FL_BSTIM32_ClearFlag_Update(BSTIM32);
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FL_BSTIM32_EnableIT_Update(BSTIM32);
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InterruptConfigStruct.preemptPriority = 0x03;
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FL_NVIC_Init(&InterruptConfigStruct, BSTIM_IRQn);
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FL_BSTIM32_Enable(BSTIM32);
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @retval None
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*/
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void Error_Handler(void)
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{
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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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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#define PLL_TIMEOUT 0xFFFFFFFFU
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uint32_t SYSCLKSELErrorState = 0;
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void FDET_IRQHandler(void)
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{
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//时钟选择中断处理
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if((FL_CMU_IsEnabledIT_SYSCLKSELError() == 0x01UL)
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&& (FL_CMU_IsActiveFlag_SYSCLKSELError() == 0x01UL))
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{
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FL_CMU_ClearFlag_SYSCLKSELError(); //清除标志
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SYSCLKSELErrorState = 1;
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}
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if((FL_CMU_IsEnabledIT_XTHFFail() == 0x01UL)
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&& (FL_CMU_IsActiveFlag_XTHFFail() == 0x01UL))
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{
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FL_CMU_DisableIT_XTHFFail();
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FL_CMU_ClearFlag_XTHFFail(); //清除标志
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/*应用处理逻辑*/
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}
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}
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/**
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* @brief
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* @param Source 锁相环输入参考时钟选择
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This parameter can be one of the following values:
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* @arg @ref FL_CMU_PLL_CLK_SOURCE_RCHF
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* @arg @ref FL_CMU_PLL_CLK_SOURCE_XTHF
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* @param PLL_REFPSC 参考时钟分频，目标分频值1M
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This parameter can be one of the following values:
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* @arg @ref FL_CMU_PLL_PSC_DIV1
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* @arg @ref FL_CMU_PLL_PSC_DIV2
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* @arg @ref FL_CMU_PLL_PSC_DIV4
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* @arg @ref FL_CMU_PLL_PSC_DIV8
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* @arg @ref FL_CMU_PLL_PSC_DIV12
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* @arg @ref FL_CMU_PLL_PSC_DIV16
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* @arg @ref FL_CMU_PLL_PSC_DIV24
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* @arg @ref FL_CMU_PLL_PSC_DIV32
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* @param PLL_DB PLL倍频比，输出时钟频率为1M*（clock+1）
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This parameter can be Between parameters of the following values:
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* @arg @ref
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* @param PLL_OSEL PLL输出选择
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This parameter can be one of the following values:
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* @arg @ref FL_CMU_PLL_OUTPUT_X1
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* @arg @ref FL_CMU_PLL_OUTPUT_X2
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* @retval None
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*/
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void CMU_PLL_ConfigDomain_SYSTEM(uint32_t Source, uint32_t PLL_REFPSC, uint32_t PLL_DB, uint32_t PLL_OSEL)
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{
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MODIFY_REG(CMU->PLLCR, CMU_PLLCR_DB_Msk | CMU_PLLCR_REFPRSC_Msk | CMU_PLLCR_OSEL_Msk | CMU_PLLCR_INSEL_Msk,
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(PLL_DB << CMU_PLLCR_DB_Pos) | PLL_REFPSC | PLL_OSEL | Source);
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}
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void RCHFInit(uint32_t clock)
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{
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switch(clock)
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{
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case FL_CMU_RCHF_FREQUENCY_8MHZ:
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FL_CMU_RCHF_WriteTrimValue(RCHF8M_TRIM);
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break;
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case FL_CMU_RCHF_FREQUENCY_16MHZ:
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FL_CMU_RCHF_WriteTrimValue(RCHF16M_TRIM);
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break;
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case FL_CMU_RCHF_FREQUENCY_24MHZ:
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FL_CMU_RCHF_WriteTrimValue(RCHF24M_TRIM);
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break;
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case FL_CMU_RCHF_FREQUENCY_32MHZ:
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FL_CMU_RCHF_WriteTrimValue(RCHF32M_TRIM);
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break;
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default:
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FL_CMU_RCHF_WriteTrimValue(RCHF8M_TRIM);
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break;
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}
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FL_CMU_RCHF_SetFrequency(clock);
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}
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/**
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* @brief 选择内部RCHF作为锁相环的参考时钟
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*
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* @note 锁相环的参考时钟需要预分频至1M，再进行PLL倍频
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* @param rchf RCHF参考时钟选择 This parameter can be one of the following values:
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* @arg @ref FL_CMU_RCHF_FREQUENCY_8MHZ
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* @arg @ref FL_CMU_RCHF_FREQUENCY_16MHZ
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* @arg @ref FL_CMU_RCHF_FREQUENCY_24MHZ
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* @arg @ref FL_CMU_RCHF_FREQUENCY_32MHZ
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* @param clock PLL倍频输出频率
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* @note 输出时钟频率为1M*（clock+1），最高输出频率可达64M
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* @retval none
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*/
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void SelRCHFToPLL(uint32_t rchf, uint32_t clock)
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{
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FL_NVIC_ConfigTypeDef InterruptConfigStruct;
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uint32_t counter = 0;
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uint32_t readystatus = 0;
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uint32_t div = FL_CMU_PLL_PSC_DIV8;
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if(clock > 63) { return; }
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/*RCHF初始化配置*/
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RCHFInit(rchf);
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/*清除时钟选择错误标志*/
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FL_CMU_ClearFlag_SYSCLKSELError();
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/*使能时钟选择错误中断*/
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FL_CMU_EnableIT_SYSCLKSELError();
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InterruptConfigStruct.preemptPriority = 0x00;
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FL_NVIC_Init(&InterruptConfigStruct, FDET_IRQn);
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switch(rchf)
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{
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case FL_CMU_RCHF_FREQUENCY_16MHZ:
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div = FL_CMU_PLL_PSC_DIV16;
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break;
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case FL_CMU_RCHF_FREQUENCY_24MHZ:
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div = FL_CMU_PLL_PSC_DIV24;
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break;
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case FL_CMU_RCHF_FREQUENCY_32MHZ:
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div = FL_CMU_PLL_PSC_DIV32;
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break;
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default:
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break;
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}
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/*FLASH读等待周期配置*/
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FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_2CYCLE);
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/*CDIF接口分频设置，访问的最高频率不超过8M*/
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FL_CDIF_SetPrescaler(CDIF, FL_CDIF_PSC_DIV8);
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/*PLL配置*/
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CMU_PLL_ConfigDomain_SYSTEM(FL_CMU_PLL_CLK_SOURCE_RCHF, div, clock, FL_CMU_PLL_OUTPUT_X1);
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/*使能PLL*/
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FL_CMU_PLL_Enable();
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/*等待PLL建立稳定*/
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do
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{
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readystatus = FL_CMU_IsActiveFlag_PLLReady();
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counter++;
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} while((readystatus != 0x1U) && (counter != PLL_TIMEOUT));
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/*系统时钟源选择PLL*/
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FL_CMU_SetSystemClockSource(FL_CMU_SYSTEM_CLK_SOURCE_PLL);
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/*FLASH读等待周期配置*/
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if(clock <= 23)
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{
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FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_0CYCLE);
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FL_CDIF_SetPrescaler(CDIF, FL_CDIF_PSC_DIV4);
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}
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else
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if((clock > 23) && (clock <= 47))
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{
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FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_1CYCLE);
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}
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else
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{
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FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_2CYCLE);
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}
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/*AHB时钟分频配置*/
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FL_CMU_SetAHBPrescaler(FL_CMU_AHBCLK_PSC_DIV1);
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/*APB时钟分频配置*/
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FL_CMU_SetAPBPrescaler(FL_CMU_APBCLK_PSC_DIV1);
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/*系统内核时钟更新*/
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SystemCoreClockUpdate();
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}
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void XTHFInit(void)
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{
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FL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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FL_NVIC_ConfigTypeDef InterruptConfigStruct;
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/*PC2.3配置成模拟功能，外接XTHF*/
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GPIO_InitStruct.pin = FL_GPIO_PIN_2 | FL_GPIO_PIN_3;
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GPIO_InitStruct.mode = FL_GPIO_MODE_ANALOG;
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GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.pull = FL_DISABLE;
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GPIO_InitStruct.remapPin = FL_DISABLE;
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(void)FL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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/*XTHF振荡强度配置*/
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FL_CMU_XTHF_WriteDriverStrength(0x0A);
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/*使能XTHF*/
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FL_CMU_XTHF_Enable();
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/*硬延时等待XTHF建立稳定*/
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FL_DelayMs(2);
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FL_CMU_ClearFlag_XTHFFail();
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/*开启XTHF停振检测中断*/
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FL_CMU_EnableIT_XTHFFail();
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InterruptConfigStruct.preemptPriority = 0x00;
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FL_NVIC_Init(&InterruptConfigStruct, FDET_IRQn);
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/*系统内核时钟更新*/
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SystemCoreClockUpdate();
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}
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/**
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* @brief 选择外部XTHF作为锁相环的参考时钟
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*
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* @note 锁相环的参考时钟需要预分频至1M，再进行PLL倍频
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* @param div 对XTHF参考时钟的分频，目标分频到1M
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*
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* @param clock PLL倍频输出频率
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* @note 输出时钟频率为1M*（clock+1），最高输出频率可达64M
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* @retval none
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*/
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void SelXTHFToPLL(uint32_t div, uint32_t clock)
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{
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FL_NVIC_ConfigTypeDef InterruptConfigStruct;
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uint32_t counter = 0;
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uint32_t readystatus = 0;
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if(clock > 63) { return; }
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/*外部高频晶体使能配置*/
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XTHFInit();
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FL_CMU_ClearFlag_SYSCLKSELError(); //清除时钟选择错误标志
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FL_CMU_EnableIT_SYSCLKSELError(); //使能时钟选择错误中断
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InterruptConfigStruct.preemptPriority = 0x00;
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FL_NVIC_Init(&InterruptConfigStruct, FDET_IRQn); //系统时钟选择错误中断
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/*FLASH读等待周期配置*/
|
||
FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_2CYCLE);
|
||
/*CDIF接口分频设置，访问的最高频率不超过8M*/
|
||
FL_CDIF_SetPrescaler(CDIF, FL_CDIF_PSC_DIV8);
|
||
/*PLL配置*/
|
||
CMU_PLL_ConfigDomain_SYSTEM(FL_CMU_PLL_CLK_SOURCE_XTHF, div, clock, FL_CMU_PLL_OUTPUT_X1);
|
||
/*使能PLL*/
|
||
FL_CMU_PLL_Enable();
|
||
/*等待PLL建立稳定*/
|
||
do
|
||
{
|
||
readystatus = FL_CMU_IsActiveFlag_PLLReady();
|
||
counter++;
|
||
} while((readystatus != 0x1U) && (counter != PLL_TIMEOUT));
|
||
/*系统时钟源选择PLL*/
|
||
FL_CMU_SetSystemClockSource(FL_CMU_SYSTEM_CLK_SOURCE_PLL);
|
||
|
||
if(clock <= 23)
|
||
{
|
||
FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_0CYCLE);
|
||
FL_CDIF_SetPrescaler(CDIF, FL_CDIF_PSC_DIV4);
|
||
}
|
||
else
|
||
if((clock > 23) && (clock <= 47))
|
||
{
|
||
FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_1CYCLE);
|
||
}
|
||
else
|
||
{
|
||
FL_FLASH_SetReadWait(FLASH, FL_FLASH_READ_WAIT_2CYCLE);
|
||
}
|
||
|
||
/*AHB时钟分频配置*/
|
||
FL_CMU_SetAHBPrescaler(FL_CMU_AHBCLK_PSC_DIV1);
|
||
/*APB时钟分频配置*/
|
||
FL_CMU_SetAPBPrescaler(FL_CMU_APBCLK_PSC_DIV1);
|
||
/*系统内核时钟更新*/
|
||
SystemCoreClockUpdate();
|
||
}
|
||
|
||
#endif /* USE_FULL_ASSERT */
|
||
|
||
/*************************(C) COPYRIGHT Fudan Microelectronics **** END OF FILE*************************/
|