Picproje Elektronik Sitesi

Arkadaşlar merhaba. USARTtan veri gönderip almaya çalışıyorum. Gönderdiğim veriyi doğru olarak alıyor ama ekrana yazdırdığım zaman aynı sonucu alamıyorum 1 giriyorum g geliyor 2 giriyorum 3 geliyor. problem nedir acaba? şimdiden teşekkürler yardımlarınız için.

#include "stm32f10x.h"
#include "stm32f10x_rcc.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x_usart.h"
#include "delay.h"
#include <string.h>
#include "stm32f10x_conf.h"
#include "misc.h";

char  str[50];
uint32_t i=0,a=0;
char gelenVeri[21] = {0};
char tmp;

#define RX_BUF_SIZE 80
volatile char RX_FLAG_END_LINE = 0;
volatile char RXi;
volatile char RXc;
volatile char RX_BUF[RX_BUF_SIZE] = {'\0'};

void clear_RXBuffer(void) {
for (RXi=0; RXi<RX_BUF_SIZE; RXi++)
RX_BUF[RXi] = '\0';
RXi = 0;
}



void Init_USART1(void) {

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);

    USART_InitTypeDef USART_ClockInitStructure;
    GPIO_InitTypeDef UARTTX;
    UARTTX.GPIO_Pin = GPIO_Pin_9;
    UARTTX.GPIO_Mode = GPIO_Mode_AF_PP;
    UARTTX.GPIO_Speed = GPIO_Speed_50MHz;

    GPIO_InitTypeDef UARTRX;
    UARTRX.GPIO_Pin = GPIO_Pin_10;
    UARTRX.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    UARTRX.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &UARTTX);
    GPIO_Init(GPIOA, &UARTRX);

    USART_ClockStructInit(&USART_ClockInitStructure);
    USART_ClockInit(USART1, &USART_ClockInitStructure);

    USART_InitTypeDef UART1;
    UART1.USART_BaudRate = 9600;
    UART1.USART_WordLength = USART_WordLength_8b;
    UART1.USART_StopBits = USART_StopBits_1;
    UART1.USART_Parity = USART_Parity_No;
    UART1.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    UART1.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;

    USART_Init(USART1, &UART1);
    USART_Cmd(USART1, ENABLE);

    USART1_NVIC_Configuration();
}

void USART1_NVIC_Configuration(void) {

    NVIC_InitTypeDef NVIC_InitStructure;
    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
}

//USART Recieve Interrupt
void USART1_IRQHandler(void)
{
    if ((USART1->SR & USART_FLAG_RXNE) != (u16)RESET)
{
    RXc = USART_ReceiveData(USART1);
    RX_BUF[RXi] = RXc;
    RXi++;

    if (RXc != 13) {
    if (RXi > RX_BUF_SIZE-1) {
    clear_RXBuffer();
    }
    }
    else {
    RX_FLAG_END_LINE = 1;
    }


}



  if(RXc== '1')
{
    GPIO_SetBits(GPIOA,GPIO_Pin_4);
GPIO_ResetBits(GPIOA,GPIO_Pin_5);


}

       if( RXc == '2')

           {
GPIO_ResetBits(GPIOA,GPIO_Pin_4);
GPIO_SetBits(GPIOA,GPIO_Pin_5);


}


}
void USART_puts(USART_TypeDef* USARTx, volatile char *s){

    while(*s){
        // wait until data register is empty
        while( !(USARTx->SR & 0x00000040) );
        USART_SendData(USARTx, *s);
        *s++;
    }




}
int main(void)

{

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 |GPIO_Pin_5 |GPIO_Pin_11 |GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_Init(GPIOA,&GPIO_InitStructure);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 |GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_Init(GPIOB,&GPIO_InitStructure);


Init_USART1();



DelayInit();

GPIO_ResetBits(GPIOA,GPIO_Pin_5);

GPIO_ResetBits(GPIOA,GPIO_Pin_4);







while(1)
{

USART1_IRQHandler();

}


}








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