解决了因为汉字在两个数据块直接导致的数据流乱码，

下个版本打算两字节两个字节的读取，这样就就不怕数据块中
换行太多导致显示不下。

Signed-off-by: 无闻风 <53944749+wuwenfengmi1998@users.noreply.github.com>

103ze/mycode/fatfs_sd.c

@@ -24,15 +24,19 @@ static uint8_t PowerFlag = 0;
 #define SD_CS_GPIO_Port GPIOD
 #define SD_CS_Pin GPIO_PIN_2
 
-volatile uint8_t Timer1, Timer2;
+volatile uint32_t Timer1, Timer2;
 
 void SDTimer_Handler(void)
 {
   if(Timer1 > 0)
-    Timer1--;
-
+  {
+	  Timer1--;
+  }
   if(Timer2 > 0)
-    Timer2--;
+  {
+	  Timer2--;
+  }
+
 }
 
 /* SPI Chip Select */
@@ -79,13 +83,14 @@ static uint8_t SD_ReadyWait(void)
   uint8_t res;
 
 
-  Timer2 = 50;
+  Timer2 = 50000;
   SPI_RxByte();
 
   do
   {
 
     res = SPI_RxByte();
+    Timer2--;
   } while ((res != 0xFF) && Timer2);
 
   return res;
@@ -152,13 +157,11 @@ static bool SD_RxDataBlock(BYTE *buff, UINT btr)
 {
   uint8_t token;
 
-
-  Timer1 = 10;
-
-
+  Timer1 = 10000;
   do
   {
     token = SPI_RxByte();
+    Timer1--;
   } while((token == 0xFF) && Timer1);
 
 
@@ -297,7 +300,7 @@ DSTATUS SD_disk_initialize(BYTE drv)
   if (SD_SendCmd(CMD0, 0) == 1)
   {
 
-    Timer1 = 100;
+    Timer1 = 100000;
 
 
     if (SD_SendCmd(CMD8, 0x1AA) == 1)
@@ -314,6 +317,7 @@ DSTATUS SD_disk_initialize(BYTE drv)
         do {
           if (SD_SendCmd(CMD55, 0) <= 1 && SD_SendCmd(CMD41, 1UL << 30) == 0)
             break; /* ACMD41 with HCS bit */
+          Timer1--;
         } while (Timer1);
 
         if (Timer1 && SD_SendCmd(CMD58, 0) == 0)
@@ -344,6 +348,7 @@ DSTATUS SD_disk_initialize(BYTE drv)
           if (SD_SendCmd(CMD1, 0) == 0)
             break; /* CMD1 */
         }
+        Timer1--;
       } while (Timer1);
 
       if (!Timer1 || SD_SendCmd(CMD16, 512) != 0)