int _write_r (struct _reent *r, int fd, char * ptr, int len)
{
(void)r;
if(fd==1 || fd==2) {
int index;
if (0 == (USART_CR1(USART1) & USART_CR1_UE))
return len; //Don't send if USART is disabled
for(index=0; index<len; index++) {
if (ptr[index] == '\n') {
usart_send_blocking(USART1,'\r');
}
usart_send_blocking(USART1, ptr[index]);
}
return len;
} else if(fd>2) {
if(file_open[fd-3]) {
#ifdef MEDIA_DRIVE
_drive_num = fd == 3 ? 0 : 1;
#endif
WORD bytes_written;
pf_switchfile(&fat[fd-3]);
int res=pf_write(ptr, len, &bytes_written);
dbgprintf("_write_r: len %d, bytes_written %d, result %d\r\n",len, bytes_written, res);
if(res==FR_OK) return bytes_written;
}
}
errno=EINVAL;
return -1;
}
FRESULT PFFS::write (
const void *buff, /* Pointer to the data to be written */
WORD btw, /* Number of bytes to write */
WORD *bw /* Pointer to number of bytes written */
)
{
return pf_write(buff, btw, bw); //ok
}
/*****************************************************************
函数原型：zbClerkSaveFile(void)
功能描述：操作员文件初始化
参数描述：
返回值： OK ? NOTOK
作 者： 刘及华
日 期： 2012-11-24
修改历史：
日期 修改人 修改描述
------ --------- -------------
*****************************************************************/
char zbClerkSaveFile(void)
{
// uchar ucret;
uchar ucOpenID;
pf_open((void *)clerkFileName, &ucOpenID);
pf_write(ucOpenID, 0, (uchar *)clerk_list);
pf_close(ucOpenID);
return TRUE;
}
int write_sdcard(void)
{
FATFS fs; /* Work area (file system object) for the volume */
BYTE buff[16]; /* File read buffer */
UINT br; /* File read count */
FRESULT res; /* Petit FatFs function common result code */
res = pf_mount(&fs);
if (res)
return res;
res = pf_open("srcfile.dat");
if (res)
return res;
res = pf_write(buff, 16, &br);
return res;
}
void SD_::init()
{
#ifdef SKIPBLANKSD
this->WorkingSDCard = true;
while ( ! check( pf_mount(&this->SDCard) ) );
while ( ! check( pf_open("data.txt") ));
this->SDOffset = 0;
while ( ! check( pf_lseek(this->SDOffset) ));
WORD written;
while ( ! check (pf_write(0,0,&written));
if( WorkingSDCard )
{
char InputBuffer[512];
WORD size;
while(true)
{
pf_read(&InputBuffer, 512, &size);
if((InputBuffer[0] == '%' && InputBuffer[1] == '$') || (InputBuffer[1] == '%' && InputBuffer[0] == '$'))
{
this->SDOffset += 512;
pf_lseek(this->SDOffset);
return;
}
this->SDOffset += 512;
pf_lseek(this->SDOffset);
}
}
#else
this->TimeStamp = 0;
WorkingSDCard = true;
while ( ! check( pf_mount(&this->SDCard) ));
while ( ! check( pf_open("data.txt") ));
this->SDOffset = 0;
while ( ! check( pf_lseek(this->SDOffset) ));
#endif
}
uint16_t testSDCard(void) {
FATFS fatfs; /* File system object */
DIR dir; /* Directory object */
FILINFO fno; /* File information object */
WORD bw, br, i;
BYTE buff[64];
print("Mount a volume.");
RET();
FRESULT rc = pf_mount(&fatfs);
if (rc) die(rc);
print("Open a test file (message.txt).");
RET();
rc = pf_open("MESSAGE.TXT");
if (rc) die(rc);
print("Type the file content.");
RET();
for (;;) {
rc = pf_read(buff, sizeof(buff), &br); /* Read a chunk of file */
if (rc || !br) break; /* Error or end of file */
for (i = 0; i < br; i++) /* Type the data */
putchar(buff[i]);
}
if (rc) die(rc);
#if _USE_WRITE
sprintf(string,"\nOpen a file to write (write.txt).\n");
print(string);
rc = pf_open("WRITE.TXT");
if (rc) die(rc);
sprintf(string,"\nWrite a text data. (Hello world!)\n");
print(string);
for (;;) {
rc = pf_write("Hello world!\r\n", 14, &bw);
if (rc || !bw) break;
}
if (rc) die(rc);
sprintf(string,"\nTerminate the file write process.\n");
print(string);
rc = pf_write(0, 0, &bw);
if (rc) die(rc);
#endif
#if _USE_DIR
print("Open root directory.");
RET();
rc = pf_opendir(&dir, "");
if (rc) die(rc);
print("Directory listing...");
RET();
for (;;) {
rc = pf_readdir(&dir, &fno); /* Read a directory item */
if (rc || !fno.fname[0]) break; /* Error or end of dir */
if (fno.fattrib & AM_DIR)
{
print(" <dir> ");
print(fno.fname);
RET();
}
else
{
printInt((uint8_t*)&fno.fsize, sizeof(fno.fsize));
print(fno.fname);
RET();
}
}
if (rc) die(rc);
#endif
print("\nTest completed.\n");
while(1)
{
delay_ten_us(50000);
delay_ten_us(50000);
P1OUT ^= (1 << RED_LED);
}
return 0xaa55;
}
size_t PFFS::write(uint8_t character){
WORD bw;
pf_write(&character, 1, &bw); //ok
return (bw == 1) ? 1 : -1;
}
int main(void)
{
lcd_init();
ds1307_init();
adc_init();
timer_init();
asm("sei");
/*
//test
lcd_str("Hello, World");
lcd_gotoxy(1,0);
lcd_str("by shtomik");
_delay_ms(1000);
lcd_clr();
lcd_str("after clr");*/
start_t();
//test
ds1307_setdate(12, 12, 31, 23, 01, 35);
//смонтировать microSD
res = pf_mount(&fs);
if(res == FR_OK)
{
//диск смонтирован и мы продолжаем работу
if(pf_open("test.txt") == FR_OK)
{
//открыли файл в корне test.txt
//...
pf_lseek(0);
//заполняем буффер, надо набрать 512 байт инфы и писать
//иначе будет много лишних пробелов
//sprintf(buff, "%s\n%s", "Hello,World!", "by_sht");
//записываем его на карту
pf_write(buff, 512, &br);
//финализируем запись
pf_write(NULL, 0, &br);
pf_lseek(512);
pf_write(buff, 512, &br);
//финализируем запись
pf_write(NULL, 0, &br);
lcd_clr();
lcd_str("ok");
}
else
{
//file not found or ...
lcd_str("file not found");
}
//демонтируем диск передав функции нулевой указатель
pf_mount(NULL);
lcd_clr();
lcd_str("file write");
}
else
{
//не удалось смонтировать диск
lcd_clr();
lcd_str("not flash");
}
while( 1 )
{
;
}
return 0;
}
FRESULT PFFS::close (
void /* Working copy file object will be closed */
)
{
WORD bw;
return pf_write(0, 0, &bw);
}
