最近用STM32F072-DISCOV板子，发现我进入stop模式后电流在18个ua,请问我进入后怎么进行唤醒呢？
用uart1，手册说可以，但是不知道怎么设置，我设置了没有反应啊~~~~
void USART_NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel=USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void UART_vInit(void) 串口初始化
{
USART_InitTypeDef USART_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
/*
* USART1_TX -> PA9 , USART1_RX -> PA10
*/
/* USART2 Pins configuration
-PA9 = USART1_TX
-PA10 = USART1_RX
-PA12 = USART1_RTS (DE)
*/
/* Enable GPIOA clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); //引脚时钟配置
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 ,ENABLE);//串口时钟配置
/* GPIO configuration for USART1 signals */
/* (1) Select AF mode (10) on PA9 and PA10 */
/* (2) AF1 for USART1 signals */
GPIOA->MODER = (GPIOA->MODER & ~(GPIO_MODER_MODER9|GPIO_MODER_MODER10))\
| (GPIO_MODER_MODER9_1 | GPIO_MODER_MODER10_1); /* (1) */
GPIOA->AFR[1] = (GPIOA->AFR[1] &~ (GPIO_AFRH_AFRH1 | GPIO_AFRH_AFRH2))\
| (1 << (1 * 4)) | (1 << (2 * 4)); /* (2) */ //串口引脚配置
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(RS_USART, &USART_InitStructure);
USART_ClearFlag(RS_USART,USART_FLAG_TC);//串口先清除标志
USART_ITConfig(RS_USART, USART_IT_WU|USART_IT_RXNE, ENABLE);
USART_ITConfig(RS_USART, USART_IT_TXE, DISABLE); //串口使能RX/WU
USART_STOPModeCmd(USART1,ENABLE);//串口使能停止
USART_StopModeWakeUpSourceConfig(USART1,USART_WakeUpSource_RXNE);
EXTI_InitStructure.EXTI_Line = EXTI_Line25;//串口使能STOP唤醒中断
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
USART_NVIC_Configuration();//nvic中断使能
USART_Cmd(RS_USART, ENABLE);
}
StopMode_Measure();//停止模式函数调用
void StopMode_Measure(void)
{
__IO uint32_t index = 0;
GPIO_InitTypeDef GPIO_InitStructure;
/* Allow access to Backup */
PWR_BackupAccessCmd(ENABLE);
/* Configure all GPIO as analog to reduce current consumption on non used IOs */
/* Enable GPIOs clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA | RCC_AHBPeriph_GPIOB | RCC_AHBPeriph_GPIOC |
RCC_AHBPeriph_GPIOD | RCC_AHBPeriph_GPIOF , ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_Init(GPIOF, &GPIO_InitStructure);
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Disable GPIOs clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA |RCC_AHBPeriph_GPIOB | RCC_AHBPeriph_GPIOC |
RCC_AHBPeriph_GPIOD | RCC_AHBPeriph_GPIOF, DISABLE);
UART_vInit();//串口使能唤醒模式
/* Enter Stop Mode */
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);//进入STOP模式
}
//串口中断函数
void UART_viIsr(void) //interrupt 4 using 2 /* use registerbank 2 for interrupt */
{
if((RS_USART->ISR & USART_FLAG_RXNE) != (uint16_t)RESET)
{
RS_USART->ISR = (UInt16)~USART_FLAG_RXNE;
if(RxIsFull())
{
RxSetOverFlow();
}
else
{
Rs232Rx_Buf[RxTail] = (UInt8)(RS_USART->RDR & (uint16_t)0x01FF);
RxTail = RxNextPosit(RxTail);
}
}
if((RS_USART->ISR & USART_FLAG_TXE) != (UInt16)RESET)
{
RS_USART->ISR = (UInt16)~USART_FLAG_TXE;
if(TxHasData())
{
RS_USART->TDR = (Rs232Tx_Buf[TxHead] & (UInt16)0x01FF);
TxHead = TxNextPosit(TxHead);
TxResetIdle();
}
else
{
TxSetIdle();
USART_ITConfig(RS_USART, USART_IT_TXE, DISABLE);
}
}
//Òç³ö´¦Àí
if(USART_GetFlagStatus(RS_USART,USART_FLAG_ORE) != (UInt16)RESET)
{
USART_ClearFlag(RS_USART,USART_FLAG_ORE);
USART_ReceiveData(RS_USART);
}
if(USART_GetFlagStatus(RS_USART,USART_IT_WU)!= (UInt16)RESET)//唤醒STOP模式
{
EXTI_ClearITPendingBit(EXTI_Line25);
}
}
大家有没有唤醒的例子，给个参考吧~~~急死了，都一天了，还没整出来~~~急急急
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