Shinichiro Nakamura
This is Petit FAT File System Module for mbed NXP LPC1768. The ported library from http://elm-chan.org/fsw/ff/00index_p.html made by Mr. ChaN. The connection is same as SDCard library here http://mbed.org/projects/cookbook/wiki/SDCard . If you need change a pin, You can find the definition at libpff/connect.h :)
Diff: main.c
- Revision:
- 0:b5453be5ad07
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.c Tue Jun 01 12:23:29 2010 +0000
@@ -0,0 +1,260 @@
+/*---------------------------------------------------------------*/
+/* Petit FAT file system module test program R0.02 (C)ChaN, 2009 */
+/*---------------------------------------------------------------*/
+
+/*
+ * Ported by Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ * 2010/06/01
+ */
+
+#include <string.h>
+#include "mbed.h"
+#include "libpff/diskio.h"
+#include "libpff/pff.h"
+
+Serial pc(USBTX, USBRX);
+
+char Line[128]; /* Console input buffer */
+
+static
+void put_rc (FRESULT rc) {
+ const char *p;
+ static const char str[] =
+ "OK\0" "DISK_ERR\0" "NOT_READY\0" "NO_FILE\0" "NO_PATH\0"
+ "NOT_OPENED\0" "NOT_ENABLED\0" "NO_FILE_SYSTEM\0";
+ uint8_t i;
+
+ for (p = str, i = 0; i != (uint8_t)rc && p; i++) {
+ while (p++);
+ }
+ pc.printf("rc=%u FR_%S\n", (WORD)rc, p);
+}
+
+
+
+static
+void put_drc (BYTE res) {
+ pc.printf("rc=%d\n", res);
+}
+
+
+
+static
+void get_line (char *buff, BYTE len) {
+ BYTE c, i;
+
+ i = 0;
+ for (;;) {
+ c = pc.getc();
+ if (c == '\r') break;
+ if ((c == '\b') && i) {
+ i--;
+ pc.putc('\b');
+ pc.putc(' ');
+ pc.putc('\b');
+ }
+ if ((c >= ' ') && (i < len - 1)) {
+ buff[i++] = c;
+ pc.putc(c);
+ }
+ }
+ buff[i] = 0;
+ pc.putc('\n');
+}
+
+
+
+static
+void put_dump (const BYTE *buff, DWORD ofs, int cnt) {
+ BYTE n;
+
+ pc.printf("%08x", ofs);
+ pc.putc(' ');
+ for (n = 0; n < cnt; n++) {
+ pc.putc(' ');
+ pc.printf("%02x", buff[n]);
+ }
+ pc.printf(" ");
+ for (n = 0; n < cnt; n++) {
+ pc.putc(((buff[n] < 0x20)||(buff[n] >= 0x7F)) ? '.' : buff[n]);
+ }
+ pc.putc('\n');
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Main */
+
+
+int main (void) {
+ char *ptr;
+ long p1, p2;
+ BYTE res;
+ WORD s1, s2, s3, ofs, cnt, w;
+ FATFS fs; /* File system object */
+ FATDIR dir; /* Directory object */
+ FILINFO fno; /* File information */
+
+ pc.baud(19200);
+ pc.printf("\nPFF test monitor\n");
+
+ for (;;) {
+ pc.putc('>');
+ get_line(Line, sizeof(Line));
+ ptr = Line;
+
+ switch (*ptr++) {
+ case '?' :
+ pc.printf("di - Initialize physical drive\n");
+ pc.printf("dd <sector> <ofs> - Dump partial secrtor 128 bytes\n");
+ pc.printf("fi - Mount the volume\n");
+ pc.printf("fo <file> - Open a file\n");
+ pc.printf("fd - Read the file 128 bytes and dump it\n");
+ pc.printf("fw <len> <val> - Write data to the file\n");
+ pc.printf("fp - Write console input to the file\n");
+ pc.printf("fe <ofs> - Move file pointer of the file\n");
+ pc.printf("fl [<path>] - Directory listing\n");
+ break;
+ case 'd' :
+ switch (*ptr++) {
+ case 'i' : /* di - Initialize physical drive */
+ res = disk_initialize();
+ put_drc(res);
+ break;
+ case 'd' : /* dd <sector> <ofs> - Dump partial secrtor 128 bytes */
+ if (2 != sscanf(ptr, "%x %x", &p1, &p2)) {
+ break;
+ }
+ s2 = p2;
+ res = disk_readp((BYTE*)Line, p1, s2, 128);
+ if (res) {
+ put_drc(res);
+ break;
+ }
+ s3 = s2 + 128;
+ for (ptr = Line; s2 < s3; s2 += 16, ptr += 16, ofs += 16) {
+ s1 = (s3 - s2 >= 16) ? 16 : s3 - s2;
+ put_dump((BYTE*)ptr, s2, s1);
+ }
+ break;
+ }
+ break;
+ case 'f' :
+ switch (*ptr++) {
+
+ case 'i' : /* fi - Mount the volume */
+ put_rc(pf_mount(&fs));
+ break;
+
+ case 'o' : /* fo <file> - Open a file */
+ while (*ptr == ' ') ptr++;
+ put_rc(pf_open(ptr));
+ break;
+#if _USE_READ
+ case 'd' : /* fd - Read the file 128 bytes and dump it */
+ ofs = fs.fptr;
+ res = pf_read(Line, sizeof(Line), &s1);
+ if (res != FR_OK) {
+ put_rc((FRESULT)res);
+ break;
+ }
+ ptr = Line;
+ while (s1) {
+ s2 = (s1 >= 16) ? 16 : s1;
+ s1 -= s2;
+ put_dump((BYTE*)ptr, ofs, s2);
+ ptr += 16;
+ ofs += 16;
+ }
+ break;
+
+#endif
+#if _USE_WRITE
+ case 'w' : /* fw <len> <val> - Write data to the file */
+ if (2 != sscanf(ptr, "%x %x", &p1, &p2)) {
+ break;
+ }
+ for (s1 = 0; s1 < sizeof(Line); Line[s1++] = (BYTE)p2) ;
+ p2 = 0;
+ while (p1) {
+ if ((UINT)p1 >= sizeof(Line)) {
+ cnt = sizeof(Line);
+ p1 -= sizeof(Line);
+ } else {
+ cnt = (WORD)p1;
+ p1 = 0;
+ }
+ res = pf_write(Line, cnt, &w); /* Write data to the file */
+ p2 += w;
+ if (res != FR_OK) {
+ put_rc((FRESULT)res);
+ break;
+ }
+ if (cnt != w) break;
+ }
+ res = pf_write(0, 0, &w); /* Finalize the write process */
+ put_rc((FRESULT)res);
+ if (res == FR_OK)
+ pc.printf("%lu bytes written.\n", p2);
+ break;
+ case 'p' : /* fp - Write console input to the file */
+ pc.printf("Type any line to write. A blank line finalize the write operation.\n");
+ for (;;) {
+ get_line(Line, sizeof(Line));
+ if (!Line[0]) break;
+ strcat(Line, "\r\n");
+ res = pf_write(Line, strlen(Line), &w); /* Write a line to the file */
+ if (res) break;
+ }
+ res = pf_write(0, 0, &w); /* Finalize the write process */
+ put_rc((FRESULT)res);
+ break;
+#endif
+#if _USE_LSEEK
+ case 'e' : /* fe <ofs> - Move file pointer of the file */
+ if (1 != sscanf(ptr, "%x", &p1)) {
+ break;
+ }
+ res = pf_lseek(p1);
+ put_rc((FRESULT)res);
+ if (res == FR_OK) {
+ pc.printf("fptr = %lu(0x%lX)\n", fs.fptr, fs.fptr);
+ }
+ break;
+#endif
+#if _USE_DIR
+ case 'l' : /* fl [<path>] - Directory listing */
+ while (*ptr == ' ') ptr++;
+ res = pf_opendir(&dir, ptr);
+ if (res) {
+ put_rc((FRESULT)res);
+ break;
+ }
+ s1 = 0;
+ for (;;) {
+ res = pf_readdir(&dir, &fno);
+ if (res != FR_OK) {
+ put_rc((FRESULT)res);
+ break;
+ }
+ if (!fno.fname[0]) break;
+ if (fno.fattrib & AM_DIR)
+ pc.printf(" <DIR> %s\n", fno.fname);
+ else
+ pc.printf("%9lu %s\n", fno.fsize, fno.fname);
+ s1++;
+ }
+ pc.printf("%u item(s)\n", s1);
+ break;
+#endif
+ }
+ break;
+ }
+ }
+
+}
+
+
+