采集串口串口调试助手发来的数据为什么写不到sd卡麻烦高手们看一下自己是菜鸟实在不知道错在哪了

wenwu1109 · 发表于 2015-5-14 19:10:59

main函数
#include "delay.h"
#include "sys.h"
#include "usart.h"
#include "MMC_SD.h"
#include "ff.h"
#include "led.h"
//#include "timer.h"
FRESULT res;//??????????·?????
int a,k;
u8 j;
u8 len;
u16 times=0;
FIL fsrc;
FATFS fs;
UINT br,bw;
BYTE buffer[512];
//BYTE textFileBuffer[]="0x05,0x0c,0x0f,0xfe,0xpf,0x77,0x11";
int main(void)
{
NVIC_Configuration();
delay_init(); //???±??????????
uart_init(9600); //?®??????????9600
LED_Init();
//TIM3_Int_Init(1999,7199);
f_mount(&fs,"0:",1); //????SD?¨
while(USART_RX_STA&0x8000)
{ res=f_open(&fsrc,"0:ceshi.TXT",FA_CREATE_NEW|FA_WRITE);
if(res==FR_OK)
{
f_lseek(&fsrc,fsrc.fsize);
res=f_write(&fsrc, USART_RX_BUF,sizeof( USART_RX_BUF[USART_RX_STA&0X3FFF])-1,&bw);
printf("\r\n???????¨????\n");
// f_lseek(&fsrc, fsrc.fsize);
f_close(&fsrc);
}
else if(res==FR_EXIST)
{
printf("\r\n????????????\r\n");
}
res = f_open(&fsrc, "0:ceshi.TXT", FA_OPEN_EXISTING | FA_READ);
br=1;
a=0;
for(;;)
{
for(a=0;a<512;a++)
buffer[a]=0;
res = f_read(&fsrc, buffer, sizeof(buffer), &br);
printf("\r\n %s",buffer);
if(res||br==0) break;
}
f_close(&fsrc);
LED0=!LED0;//????LED,?á??????????????.
delay_ms(10);
}
/* while(1)
{
if(USART_RX_STA&0x8000)
{
len=USART_RX_STA&0x3fff;//?????????????????????¤??
printf("\r\n?ú·???????????:\r\n");
for(j=0;j<len;j++)
{
USART1->DR=USART_RX_BUF[j];
while((USART1->SR&0X40)==0);//????·????á??
}
printf("\r\n\r\n");//????????
USART_RX_STA=0;
}else
{
times++;
if(times%5000==0)
{
printf("\r\nALIENTEK MiniSTM32??·?°? ?®?????é\r\n");
printf("??????×?@ALIENTEK\r\n\r\n\r\n");
}
if(times%200==0)printf("??????????,???????ü?á??\r\n");
if(times%30==0)LED0=!LED0;//????LED,?á??????????????.
delay_ms(10);
}
} */
}
中断函数
#include "sys.h"
#include "usart.h"
//?????????ú??,?§??printf????,?????è??????use MicroLIB
#if 1
#pragma import(__use_no_semihosting)
//±ê×????è?????§??????
struct __FILE
{
int handle;

};

FILE __stdout;
//?¨??_sys_exit()??±???????°??÷?ú????
_sys_exit(int x)
{
x = x;
}
//???¨??fputc????
int fputc(int ch, FILE *f)
{
while((USART1->SR&0X40)==0);//???··???,?±??·????ê±?
USART1->DR = (u8) ch;
return ch;
}
#endif

/*????microLib??·?·¨*/
/*
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));
}
*/

//?®??1????·??????ò
//×???,????USARTx->SR??±??????????????í?ó
u8 USART_RX_BUF[USART_REC_LEN]; //????????,×??óUSART_REC_LEN??×???.
//????×???
//bit15?? ?????ê??±ê??
//bit14?? ??????0x0d
//bit13~0?? ???????????§×???????
u16 USART_RX_STA=0; //????×???±ê??

//??????IO ?®??1
//bound:?¨????
void uart_init(u32 bound){
//GPIO?????è??
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA, ENABLE); //????USART1??GPIOA?±??
USART_DeInit(USART1); //?????®??1
//USART1_TX PA.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; //???????ì????
GPIO_Init(GPIOA, &GPIO_InitStructure); //??????PA9

//USART1_RX

A.10
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//????????
GPIO_Init(GPIOA, &GPIO_InitStructure); //??????PA10

//Usart1 NVIC ????

NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3 ;//??????????3
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //×???????3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ?¨??????
NVIC_Init(&NVIC_InitStructure); //?ù?????¨????????????VIC?????÷

//USART ???????è??

USART_InitStructure.USART_BaudRate = bound;//??°??è????9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//×??¤??8??????????
USART_InitStructure.USART_StopBits = USART_StopBits_1;//??????????
USART_InitStructure.USART_Parity = USART_Parity_No;//?????????é??
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//???????????÷????
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //??·?????

USART_Init(USART1, &USART_InitStructure); //???????®??
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//????????
USART_Cmd(USART1, ENABLE); //?????®??
}
#if EN_USART1_RX //??????????????
void USART1_IRQHandler(void) //?®??1????·??????ò
{
u8 Res;
#ifdef OS_TICKS_PER_SEC //?????±?????????¨????,???÷??????ucosII??.
OSIntEnter();
#endif
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //????????(????????????±?????0x0d 0x0a?á??)
{
Res =USART_ReceiveData(USART1);//(USART1->DR); //????????????????

if((USART_RX_STA&0x8000)==0)//???????ê??
{
if(USART_RX_STA&0x4000)//????????0x0d
{
if(Res!=0x0a)USART_RX_STA=0;//?????í?ó,????????
else USART_RX_STA|=0x8000; //?????ê????
}
else //????????0X0D
{
if(Res==0x0d)USART_RX_STA|=0x4000;
else
{
USART_RX_BUF[USART_RX_STA&0X3FFF]=Res ;
USART_RX_STA++;
if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//?????????í?ó,????????????
}
}
}
}
#ifdef OS_TICKS_PER_SEC //?????±?????????¨????,???÷??????ucosII??.
OSIntExit();
#endif
}
#endif