1 files changed, 61 insertions, 0 deletions
diff --git a/fatfs/documents/res/app6.c b/fatfs/documents/res/app6.c
new file mode 100644
index 0000000..4a3565e
--- /dev/null
+++ b/fatfs/documents/res/app6.c
@@ -0,0 +1,61 @@
+/*---------------------------------------------------------------------*/
+/* Raw Read/Write Throughput Checker                                   */
+/*---------------------------------------------------------------------*/
+
+#include <stdio.h>
+#include <systimer.h>
+#include "diskio.h"
+#include "ff.h"
+
+
+int test_raw_speed (
+    BYTE pdrv,      /* Physical drive number */
+    DWORD lba,      /* Start LBA for read/write test */
+    DWORD len,      /* Number of bytes to read/write (must be multiple of sz_buff) */
+    void* buff,     /* Read/write buffer */
+    UINT sz_buff    /* Size of read/write buffer (must be multiple of FF_MAX_SS) */
+)
+{
+    WORD ss;
+    DWORD ofs, tmr;
+
+
+#if FF_MIN_SS != FF_MAX_SS
+    if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &ss) != RES_OK) {
+        printf("\ndisk_ioctl() failed.\n");
+        return 0;
+    }
+#else
+    ss = FF_MAX_SS;
+#endif
+
+    printf("Starting raw write test at sector %lu in %u bytes of data chunks...", lba, sz_buff);
+    tmr = systimer();
+    for (ofs = 0; ofs < len / ss; ofs += sz_buff / ss) {
+        if (disk_write(pdrv, buff, lba + ofs, sz_buff / ss) != RES_OK) {
+            printf("\ndisk_write() failed.\n");
+            return 0;
+        }
+    }
+    if (disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) {
+        printf("\ndisk_ioctl() failed.\n");
+        return 0;
+    }
+    tmr = systimer() - tmr;
+    printf("\n%lu bytes written and it took %lu timer ticks.\n", len, tmr);
+
+    printf("Starting raw read test at sector %lu in %u bytes of data chunks...", lba, sz_buff);
+    tmr = systimer();
+    for (ofs = 0; ofs < len / ss; ofs += sz_buff / ss) {
+        if (disk_read(pdrv, buff, lba + ofs, sz_buff / ss) != RES_OK) {
+            printf("\ndisk_read() failed.\n");
+            return 0;
+        }
+    }
+    tmr = systimer() - tmr;
+    printf("\n%lu bytes read and it took %lu timer ticks.\n", len, tmr);
+
+    printf("Test completed.\n");
+    return 1;
+}
+