144 lines
5.3 KiB
C
144 lines
5.3 KiB
C
/*
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* Copyright (c) 2022, SHANGHAI FUDAN MICROELECTRONICS GROUP CO., LTD.(FUDAN MICROELECTRONICS./ FUDAN MICRO.)
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* All rights reserved.
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*
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* Processor: FM33LG0xxA
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* http: http://www.fmdevelopers.com.cn/
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* 4. To provide the most up-to-date information, the revision of our documents
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* on the World Wide Web will be the most Current. Your printed copy may be
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* an earlier revision. To verify you have the latest information avaliable,
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* refer to: http://www.fmdevelopers.com.cn/.
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*
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* THIS SOFTWARE IS PROVIDED BY FUDAN MICRO "AS IS" AND ANY EXPRESSED
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* ORIMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED.IN NO EVENT SHALL FUDAN MICRO OR ITS CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISINGIN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OFTHE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "svd.h"
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/**
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* @brief 将SVS引脚初始化为模拟端口
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* @param void
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* @retval void
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*/
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static void SVD_SVS_GPIO_Init(void)
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{
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FL_GPIO_InitTypeDef gpioInitStruct = {0};
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gpioInitStruct.pin = SVD_SVS_PIN;
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gpioInitStruct.mode = FL_GPIO_MODE_ANALOG;
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gpioInitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
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gpioInitStruct.pull = FL_DISABLE;
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gpioInitStruct.remapPin = FL_DISABLE;
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FL_GPIO_Init(SVD_SVS_GPIO, &gpioInitStruct);
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}
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/**
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* @brief SVD初始化
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* @param eSVD_MonitroPower: 选择SVD监控电源
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* u32WarnThreshold： 报警阈值档位
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* u32RevVoltage： 参考基准
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* @retval void
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*/
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void SVD_Init(SVD_MONTIOR_POWER eSVD_MonitroPower, uint32_t u32WarnThreshold, uint32_t u32RevVoltage)
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{
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FL_SVD_InitTypeDef SVD_InitStruct;
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if(SVD_MONTIOR_SVS == eSVD_MonitroPower)
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{ /* SVS引脚初始化为模拟功能 */
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SVD_SVS_GPIO_Init();
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}
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/* 使能外部SVS通道 */
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SVD_InitStruct.SVSChannel = (FL_FunState)(SVD_MONTIOR_SVS == eSVD_MonitroPower);
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/* 使能数字滤波 */
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SVD_InitStruct.digitalFilter = FL_ENABLE;
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/* 参考基准输入选择 */
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SVD_InitStruct.referenceVoltage = u32RevVoltage;
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/* 工作模式配置 */
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SVD_InitStruct.workMode = FL_SVD_WORK_MODE_CONTINUOUS;
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/* 间歇使能间隔配置 */
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SVD_InitStruct.enablePeriod = FL_SVD_ENABLE_PERIOD_62P5MS;
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/* 报警阈值配置 */
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SVD_InitStruct.warningThreshold = u32WarnThreshold;
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/* 报警阈值设置 */
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FL_SVD_Init(SVD, &SVD_InitStruct);
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/* 使能SVD */
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FL_SVD_Enable(SVD);
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/* SVD使能后到稳定输出等待500us */
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FL_DelayUs(500);
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}
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/**
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* @brief SVD监测结果（SVDO标志位）轮询输出
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SVD实时电压监测标志，无滤波
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* @param void
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* @retval None
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*/
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SVD_RESULT SVD_SVDO_POLL(void)
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{
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/* SVD实时电压监测标志；软件避免写此寄存器 */
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return (SVD_RESULT)(SVD_ISR_SVDO_Msk == FL_SVD_GetCurrentPowerStatus(SVD));
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}
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/**
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* @brief SVD监测结果（SVDR标志）轮询输出
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仅在数字滤波使能时有意义，即滤波后的锁存信号
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* @param void
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* @retval None
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*/
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SVD_RESULT SVD_SVDR_POLL(void)
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{
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/* SVD内部滤波后的电压监测标志，仅在使能数字滤波时有意义；软件避免写此寄存器 */
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return (SVD_RESULT)(SVD_ISR_SVDR_Msk == FL_SVD_GetLatchedPowerStatus(SVD));
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}
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/**
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* @brief 确认SVD监测结果是否处于目标状态
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* @param eSVDResultType：要确认的目状态SVD_BELOW_THRESHOLD或SVD_HIGHER_THRESHOLD
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u32Delay_us： 防抖时长，单位us
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* @retval bool true： 当前SVD监测结果与目标状态一致
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false：当前SVD监测结果与目标状态不一致
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*/
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bool SVD_Result_Confirmed(SVD_RESULT eSVDResultType, uint32_t u32Delay_us)
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{
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if (0 == u32Delay_us)
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{
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u32Delay_us += 1;
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}
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/* 注意是否使能数字滤波，调用不同的结果轮询函数 */
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while ((SVD_SVDR_POLL() == eSVDResultType) && u32Delay_us)
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{
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if (--u32Delay_us)
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{
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FL_DelayUs(1);
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}
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}
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return (bool)(0 == u32Delay_us);
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}
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