串口调试助手不能接收数据怎么办，用的原子的代码

lliwork · 发表于 2018-1-30 14:04:45

你这个图贴出来别人能看出什么额

张某人 · 发表于 2018-1-30 14:15:05

$V~{(4WY4M`}[U]_0AWQ}E.png$ S@Y0{BZG%5W{7GNCFLOFL}L.png

张某人 · 发表于 2018-1-30 14:16:06

lvb · 发表于 2018-1-30 15:28:13

按了回车键了吗，例程你没改动的话是没问题的硬件问题或者操作问题？

kbq1950361006 · 发表于 2018-1-30 15:33:25

串口：c
#include "sys.h"
#include "usart.h"
//////////////////////////////////////////////////////////////////////////////////
//èç1ûê1óÃucos,Ôò°üà¨ÏÂÃæμÄí·ÎÄ¼t¼′¿é.
#if SYSTEM_SUPPORT_OS
#include "includes.h" //ucos ê1óÃ
#endif
//////////////////////////////////////////////////////////////////////////////////
//±¾3ìDòÖ»1©Ñ§Ï°ê1óÃ￡¬Î′¾-×÷ÕßDí¿é￡¬2»μÃóÃóúÆäËüèÎoÎóÃí¾
//ALIENTEK STM32¿a·￠°å
//′®¿ú13õê¼»ˉ
//ÕyμãÔ-×ó@ALIENTEK
//¼¼êõÂÛì3:www.openedv.com
//DT¸ÄèÕÆú:2012/8/18
//°æ±¾￡oV1.5
//°æè¨ËùóD￡¬μá°æ±Ø¾¿¡￡
//Copyright(C) 1ãÖYêDDÇòíμç×ó¿Æ¼¼óDÏT1«Ë¾ 2009-2019
//All rights reserved
//********************************************************************************
//V1.3DT¸ÄËμÃ÷
//Ö§3Öêêó|2»í¬ÆμÂêÏÂμÄ′®¿ú2¨ìØÂêéèÖÃ.
//¼óèëáË¶ÔprintfμÄÖ§3Ö
//Ôö¼óáË′®¿ú½óêÕÃüáî1|Äü.
//DTÕyáËprintfμúò»¸ö×Ö·û¶aê§μÄbug
//V1.4DT¸ÄËμÃ÷
//1,DT¸Ä′®¿ú3õê¼»ˉIOμÄbug
//2,DT¸ÄáËUSART_RX_STA,ê1μÃ′®¿ú×î′ó½óêÕ×Ö½úêyÎa2μÄ14′Î·½
//3,Ôö¼óáËUSART_REC_LEN,óÃóú¶¨òå′®¿ú×î′óÔêDí½óêÕμÄ×Ö½úêy(2»′óóú2μÄ14′Î·½)
//4,DT¸ÄáËEN_USART1_RXμÄê1Äü·½ê½
//V1.5DT¸ÄËμÃ÷
//1,Ôö¼óáË¶ÔUCOSIIμÄÖ§3Ö
//////////////////////////////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////
//¼óèëòÔÏÂ′úÂë,Ö§3Öprintfoˉêy,¶ø2»DèòaÑ¡Ôñuse MicroLIB
#if 1
#pragma import(__use_no_semihosting)
//±ê×¼¿aDèòaμÄÖ§3Öoˉêy
struct __FILE
{
int handle;

};

FILE __stdout;
//¶¨òå_sys_exit()òÔ±üÃaê1óÃ°ëÖ÷»úÄ￡ê½
_sys_exit(int x)
{
x = x;
}
//ÖØ¶¨òåfputcoˉêy
int fputc(int ch, FILE *f)
{
while((USART1->SR&0X40)==0);//Ñ-»··￠Ëí,Ö±μ½·￠Ëííê±Ï
USART1->DR = (u8) ch;
return ch;
}
#endif

/*ê1óÃmicroLibμÄ·½·¨*/
/*
int fputc(int ch, FILE *f)
{
USART_SendData(USART1, (uint8_t) ch);

while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET) {}

return ch;
}
int GetKey (void)  {

while (!(USART1->SR & USART_FLAG_RXNE));

return ((int)(USART1->DR & 0x1FF));
}
*/

#if EN_USART1_RX //èç1ûê1ÄüáË½óêÕ
//′®¿ú1ÖD¶Ï·tÎñ3ìDò
//×￠òa,¶áè¡USARTx->SRÄü±üÃaÄaÃûÆäÃîμÄ′íÎó
u8 USART_RX_BUF[USART_REC_LEN];    //½óêÕ»o3å,×î′óUSART_REC_LEN¸ö×Ö½ú.
u8 USART_TX_BUF[USART_REC_LEN];    //·￠Ëí»o3å,×î′óUSART_REC_LEN¸ö×Ö½ú.
u16 USART_RX_STA=0;    //½óêÕ×′ì¬±ê¼Ç
u8 g_Uart1_Timer;
//½óêÕ×′ì¬
//bit15￡¬ ½óêÕíê3é±êÖ¾
//bit14￡¬ ½óêÕμ½0x0d
//bit13~0￡¬ ½óêÕμ½μÄóDD§×Ö½úêyÄ¿


void uart_init(u32 bound){
  //GPIO¶Ë¿úéèÖÃ
  GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA, ENABLE); //ê1ÄüUSART1￡¬GPIOAê±Öó

//USART1_TX GPIOA.9
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA.9
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //¸′óÃíÆíìêä3ö
  GPIO_Init(GPIOA, &GPIO_InitStructure);//3õê¼»ˉGPIOA.9

  //USART1_RX    GPIOA.103õê¼»ˉ
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//PA10
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//¸¡¿Õêäèë
  GPIO_Init(GPIOA, &GPIO_InitStructure);//3õê¼»ˉGPIOA.10

  //Usart1 NVIC ÅäÖÃ
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3 ;//ÇàÕ¼óÅÏè¼¶3
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //×óóÅÏè¼¶3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQí¨μàê1Äü
NVIC_Init(&NVIC_InitStructure); //¸ù¾YÖ¸¶¨μÄ2Îêy3õê¼»ˉVIC¼Ä′æÆ÷

//USART 3õê¼»ˉéèÖÃ

USART_InitStructure.USART_BaudRate = bound;//′®¿ú2¨ìØÂê
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//×Ö3¤Îa8Î»êy¾Y¸ñê½
USART_InitStructure.USART_StopBits = USART_StopBits_1;//ò»¸öí￡Ö1Î»
USART_InitStructure.USART_Parity = USART_Parity_No;//ÎTÆæÅ¼D￡ÑéÎ»
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//ÎTó2¼têy¾Yá÷¿ØÖÆ
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //êÕ·￠Ä￡ê½

  USART_Init(USART1, &USART_InitStructure); //3õê¼»ˉ′®¿ú1
  USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//¿aÆô′®¿ú½óêüÖD¶Ï
  USART_Cmd(USART1, ENABLE);                   //ê1Äü′®¿ú1

}

void USART1_IRQHandler(void)             //′®¿ú1ÖD¶Ï·tÎñ3ìDò
{
u8 Res;
#if SYSTEM_SUPPORT_OS //èç1ûSYSTEM_SUPPORT_OSÎaÕæ￡¬ÔòDèòaÖ§3ÖOS.
OSIntEnter();
#endif
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)  //½óêÕÖD¶Ï
{
//  USART_ClearITPendingBit(USART1,USART_IT_RXNE); //Çå3yÖD¶Ï±êÖ¾
   Res =USART_ReceiveData(USART1); //¶áè¡½óêÕμ½μÄêy¾Y
   g_Uart1_Timer=1;//èç1ûóDêy¾Y￡¬¿aÆô±êÖ¾Î»￡¬¶¨ê±Æ÷¿aê¼¼Æêy
      if((USART_RX_STA&0x8000)==0)//½óêÕÎ′íê3é
{
USART_RX_BUF[USART_RX_STA&0X3FFF]=Res ;
USART_RX_STA++;
if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//½óêÕêy¾Y′íÎó,ÖØDÂ¿aê¼½óêÕ
   }

}
#if SYSTEM_SUPPORT_OS //èç1ûSYSTEM_SUPPORT_OSÎaÕæ￡¬ÔòDèòaÖ§3ÖOS.
OSIntExit();
#endif
}
#endif

timer：
#include "timer.h"
#include "led.h"
#include "wdg.h"
#include "usart.h"
//////////////////////////////////////////////////////////////////////////////////
//±¾3ìDòÖ»1©Ñ§Ï°ê1óÃ￡¬Î′¾-×÷ÕßDí¿é￡¬2»μÃóÃóúÆäËüèÎoÎóÃí¾
//ALIENTEKÕ½½￠STM32¿a·￠°å
//¶¨ê±Æ÷ Çy¶ˉ′úÂë
//ÕyμãÔ-×ó@ALIENTEK
//¼¼êõÂÛì3:www.openedv.com
//DT¸ÄèÕÆú:2012/9/3
//°æ±¾￡oV1.0
//°æè¨ËùóD￡¬μá°æ±Ø¾¿¡￡
//Copyright(C) 1ãÖYêDDÇòíμç×ó¿Æ¼¼óDÏT1«Ë¾ 2009-2019
//All rights reserved
//////////////////////////////////////////////////////////////////////////////////
u8 send_adc_flag;
u8 led_flag;
//í¨óÃ¶¨ê±Æ÷3ÖD¶Ï3õê¼»ˉ
//Õaàïê±ÖóÑ¡ÔñÎaAPB1μÄ2±¶￡¬¶øAPB1Îa36M
//arr￡o×Ô¶ˉÖØ×°Öμ¡￡
//psc￡oê±ÖóÔ¤·ÖÆμêy
//Õaàïê1óÃμÄêÇ¶¨ê±Æ÷3!
void TIM3_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //ê±Öóê1Äü

//¶¨ê±Æ÷TIM33õê¼»ˉ
TIM_TimeBaseStructure.TIM_Period = arr; //éèÖÃÔúÏÂò»¸ö¸üDÂêÂ¼t×°èë»î¶ˉμÄ×Ô¶ˉÖØ×°ÔØ¼Ä′æÆ÷ÖüÆúμÄÖμ
TIM_TimeBaseStructure.TIM_Prescaler =psc; //éèÖÃóÃà′×÷ÎaTIMxê±ÖóÆμÂê3yêyμÄÔ¤·ÖÆμÖμ
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //éèÖÃê±Öó·Ö¸î:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIMÏòéÏ¼ÆêyÄ￡ê½
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //¸ù¾YÖ¸¶¨μÄ2Îêy3õê¼»ˉTIMxμÄê±¼ä»ùêyμ￥Î»

TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE ); //ê1ÄüÖ¸¶¨μÄTIM3ÖD¶Ï,ÔêDí¸üDÂÖD¶Ï

//ÖD¶ÏóÅÏè¼¶NVICéèÖÃ
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;  //TIM3ÖD¶Ï
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;  //ÏèÕ¼óÅÏè¼¶0¼¶
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;  //′óóÅÏè¼¶3¼¶
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQí¨μà±»ê1Äü
NVIC_Init(&NVIC_InitStructure);  //3õê¼»ˉNVIC¼Ä′æÆ÷

TIM_Cmd(TIM3, ENABLE);  //ê1ÄüTIMx
}
//¶¨ê±Æ÷3ÖD¶Ï·tÎñ3ìDò
void TIM3_IRQHandler(void) //TIM3ÖD¶Ï
{
if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)  //¼ì2éTIM3¸üDÂÖD¶Ï·￠éúóë·ñ
{
TIM_ClearITPendingBit(TIM3, TIM_IT_Update  );  //Çå3yTIMx¸üDÂÖD¶Ï±êÖ¾
send_adc_flag++;//¶¨ê±·￠Ëíad
led_flag++;
if(g_Uart1_Timer>0)//èç1û¿aê¼½óêÕ￡¬½øDD¼ÆêyÅD¶Ï3¬ê±
   {
   g_Uart1_Timer++;
   }
IWDG_Feed();//¶¨ê±500msÎ11·
}
}

mian：
if(g_Uart1_Timer>5) //èô3¬ê±½óêÕ￡¬ÔòÅD¶Ï½óêÕíê±Ï
{
      g_Uart1_Timer=0;//Çå3y±êÖ¾￡¬×¼±¸ÏÂò»′Î½óêÕ
   // len=USART_RX_STA;//μÃμ½′Ë′Î½óêÕμ½μÄêy¾Y3¤¶è
USART_RX_STA=0;

            }