2025-02-19 13:21:11 +08:00
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/*
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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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2025-02-18 10:13:34 +08:00
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#include "main.h"
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#include "user_init.h"
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#include "uart.h"
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#include "lin.h"
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#include "sleep.h"
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#if (SLEEP_SUPPORT == 1)
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uint8_t g_awake_init = 0;
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/**
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* @brief LIN RX引脚GPIO中断初始化
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* @param void
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* @retval void
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*/
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void GPIO_interrupt_init(void)
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{
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FL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* 引脚边沿触发选择 */
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FL_CMU_EnableEXTIOnSleep(); /* 休眠使能外部中断采样 */
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FL_CMU_EnableGroup3OperationClock(FL_CMU_GROUP3_OPCLK_EXTI);/* EXTI工作时钟使能 */
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/* 用到的GPIO引脚 设为输入 */
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GPIO_InitStruct.pin = LIN_UART_RX_PIN;
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GPIO_InitStruct.mode = FL_GPIO_MODE_INPUT;
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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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FL_GPIO_Init(LIN_UART_RX_GPIO, &GPIO_InitStruct);
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FL_GPIO_SetTriggerEdge0(GPIO, LIN_RX_EXTI_LINE, FL_GPIO_EXTI_TRIGGER_EDGE_DISABLE); /* 关闭边沿触发 */
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/* 每条LINE只能选择一个引脚 */
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FL_GPIO_SetExtiLine12(GPIO, LIN_RX_EXTI_LINE_PIN); /* 中断引脚选择 */
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FL_GPIO_EnableDigitalFilter(GPIO, LIN_RX_EXTI_LINE); /* EXTI数字滤波功能 */
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FL_GPIO_SetTriggerEdge0(GPIO, LIN_RX_EXTI_LINE, FL_GPIO_EXTI_TRIGGER_EDGE_FALLING); /* 边沿选择 */
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FL_GPIO_ClearFlag_EXTI(GPIO, LIN_RX_EXTI_LINE); /* 清除中断标志 */
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/* NVIC中断配置 */
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NVIC_DisableIRQ(GPIO_IRQn);
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NVIC_SetPriority(GPIO_IRQn, LIN_GPIO_IRQ_PRI);
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NVIC_EnableIRQ(GPIO_IRQn);
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}
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/**
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* @brief LIN Sleep切换
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* @param void
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* @retval void
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*/
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void prepare_sleep(void)
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{
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lin_sleep_init();
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/* 切换Rx引脚为GPIO, 使能中断唤醒 */
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GPIO_interrupt_init();
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}
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/**
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* @brief 进入 Sleep
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* @param void
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* @retval void
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*/
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void enter_sleep(void)
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{
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FL_PMU_SleepInitTypeDef LPM_InitStruct;
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LED_R_ON();
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LPM_InitStruct.deepSleep = FL_PMU_SLEEP_MODE_NORMAL;
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LPM_InitStruct.powerMode = FL_PMU_POWER_MODE_SLEEP_OR_DEEPSLEEP;
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LPM_InitStruct.wakeupFrequency = FL_PMU_RCHF_WAKEUP_FREQ_8MHZ;
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LPM_InitStruct.wakeupDelay = FL_PMU_WAKEUP_DELAY_2US;
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LPM_InitStruct.LDOLowPowerMode = FL_PMU_LDO_LPM_DISABLE;
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LPM_InitStruct.coreVoltageScaling = FL_DISABLE;
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FL_PMU_Sleep_Init(PMU, &LPM_InitStruct);
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//FL_CMU_RCLF_Enable(); /* 暂开启RCLF */
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FL_RMU_PDR_Enable(RMU); /* 打开PDR */
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2025-02-19 13:21:11 +08:00
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FL_RMU_BOR_Enable(RMU); /* 关闭BOR 2uA */
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FL_VREF_Disable(VREF); /* 关闭VREF1p2 */
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2025-02-18 10:13:34 +08:00
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FL_CDIF_DisableCPUToVAO(CDIF); /* 关闭CPU到VAO的通道 */
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/* 睡眠电源模式*/
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FL_PMU_SetLowPowerMode(PMU, FL_PMU_POWER_MODE_SLEEP_OR_DEEPSLEEP);
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__WFI(); //休眠
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FL_VREF_Enable(VREF); //使能VREF1p2
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}
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/**
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* @brief GPIO中断
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* @note 唤醒后配置
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* @param void
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* @retval void
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*/
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void GPIO_IRQHandler(void)
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{
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if(GPIO->EXTIISR & LIN_RX_EXTI_LINE)
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{
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LED0_TOG();
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/* 第一时间将接收引脚切换为数字功能, 开始GPTIM输入捕获*/
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LIN_UART_RX_GPIO->FCR &= ~LIN_UART_RX_PIN_FCR_MASK;
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LIN_UART_RX_GPIO->FCR |= LIN_UART_RX_PIN_FCR_DIGIT;
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#if (AUTOBAUD == 1)
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/* 引脚重配置为GPTIM输入 */
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LIN_UART_RX_GPIO->DFS |= LIN_UART_RX_PIN;
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/* 清中断标志, 使能GPTIM2中断 */
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GPTIM2->ISR = LIN_GPTIM2_ISR_MASK;
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NVIC_ClearPendingIRQ(GPTIM2_IRQn);
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NVIC_EnableIRQ(GPTIM2_IRQn);
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/* 使能定时器 */
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GPTIM2->CR1 |= GPTIM_CR1_CEN_Msk;
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#else
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/* 引脚重置为UART Rx */
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LIN_UART_RX_GPIO->DFS &= ~LIN_UART_RX_PIN;
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/* 清除UART中断标志, 使能UART接收中断 */
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LIN_UART->ISR = LIN_UART->ISR;
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NVIC_ClearPendingIRQ(LIN_UART_IRQType);
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NVIC_EnableIRQ(LIN_UART_IRQType);
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/* 使能UART接收功能 */
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LIN_UART->CSR |= UART_CSR_RXEN_Msk;
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#endif
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LED0_TOG();
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/* lin唤醒后配置 */
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lin_awake_init();
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LED_R_OFF();
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LED0_TOG();
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/* 清中断标志, 关闭GPIO中断 */
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GPIO->EXTIISR = LIN_RX_EXTI_LINE;
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FL_GPIO_SetTriggerEdge0(GPIO, LIN_RX_EXTI_LINE, FL_GPIO_EXTI_TRIGGER_EDGE_DISABLE);
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NVIC_ClearPendingIRQ(GPIO_IRQn);
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}
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}
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/**
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* @brief lin Sleep
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* @param void
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* @retval void
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*/
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void sleep(void)
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{
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prepare_sleep();
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enter_sleep();
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}
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#endif /* End #if (SLEEP_SUPPORT == 1) */
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