通过用zet6的USART2与蓝牙hc-05通信， 用手机连接蓝牙，手机能发，但zet6收不到，为什么？ 坐等急求 大神们

张少华

[mw_shl_code=c,true]#include"stm32f10x.h" #define LED2ON GPIO_ResetBits(GPIOE,GPIO_Pin_5) #define LED3ON GPIO_ResetBits(GPIOB,GPIO_Pin_5) u16 num; int RXD,TXD; static __IO uint32_t TimingDelay; void Delay(__IO uint32_t nTime); void Systick_Init() { if (SysTick_Config(SystemCoreClock / 1000)) { while (1); } } void GPIO_INIT() { GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_Init(GPIOA, &GPIO_InitStructure); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOB, &GPIO_InitStructure); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);[/mw_shl_code] [mw_shl_code=c,true] GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;[/mw_shl_code] [mw_shl_code=c,true] GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOE, &GPIO_InitStructure); } void USART_INIT() { USART_InitTypeDef USART_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);//USART2?±??APB1 USART_DeInit(USART2); USART_InitStructure.USART_BaudRate = 9600; 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(USART2,&USART_InitStructure); USART_Cmd(USART2,ENABLE); USART_ITConfig(USART2, USART_IT_TXE, ENABLE); USART_ITConfig(USART2, USART_IT_RXNE, ENABLE); } void NVIC_INIT() { NVIC_InitTypeDef NVIC_InitStructure; NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); } int main() { Systick_Init(); GPIO_INIT(); USART_INIT(); NVIC_INIT(); while(1) { if(RXD==1) { switch(num) { case 0ED2ON;break; case 1ED3ON;break; default:break; } RXD=0; USART_ClearFlag(USART2,USART_FLAG_RXNE); } } } void Delay(__IO uint32_t nTime) { TimingDelay = nTime; while(TimingDelay != 0); } void TimingDelay_Decrement(void) { if (TimingDelay != 0x00) { TimingDelay--; } } void USART2_IRQHandler(void) { if (USART_GetITStatus(USART2, USART_IT_TXE) != RESET) // Transmit the string in a loop { USART_ClearFlag(USART2,USART_FLAG_TXE); TXD=1; } if (USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) // Received characters modify string { RXD=1; num = USART_ReceiveData(USART2); } } [/mw_shl_code]

大神们    帮忙看看   求指教！！！！！！！！！

张少华

回复【2楼】正点原子:
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已经 解决了。。谢谢原子哥

正点原子

先用串口助手调试下。

张少华

回复【2楼】正点原子:
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还是没解决，能帮忙看看中断程序是否有问题？

张少华

回复【2楼】正点原子:
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我用串口接蓝牙，通过手机发送0x00或0x01，串口助手收到的为什么一直是0x7F.