update

app/MDK-ARM/app.uvguix.29643

@@ -1883,9 +1883,9 @@
       </Doc>
       <Doc>
         <Name>..\..\usersrc\usermain.c</Name>
-        <ColumnNumber>1</ColumnNumber>
+        <ColumnNumber>34</ColumnNumber>
         <TopLine>72</TopLine>
-        <CurrentLine>74</CurrentLine>
+        <CurrentLine>95</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>

usersrc/usermain.c

@@ -37,7 +37,7 @@ uint8_t SPI_ReadWriteByte(uint8_t txData)
   uint8_t rxData = 0;
 
   SPI_CS_0();
-  sys_delay_us(1); // tsw
+  sys_delay_us(1); // symbol tsw
   SPI_SCK_0();
   sys_delay_us(1);
 
@@ -60,15 +60,28 @@ uint8_t SPI_ReadWriteByte(uint8_t txData)
     SPI_SCK_0();
     sys_delay_us(1);
     // 数据接收
-    rxData <<= 1;
-    if (SPI_READ_MISO())
-    {
-      rxData |= 0x01;
+    // rxData <<= 1;
+    // if (SPI_READ_MISO())
+    // {
+    //   rxData |= 0x01;
+    // }
+    sys_delay_us(1);
   }
+
+  for (i = 0; i < 8; i++)
+  {
+    SPI_SCK_1();
+    sys_delay_us(1);
+    sys_delay_us(1);
+    SPI_SCK_0();
+    sys_delay_us(1);
     sys_delay_us(1);
   }
+
   SPI_MOSI_1(); // 数据线空闲高电平
   SPI_SCK_1();
+  sys_delay_us(1); // symbol thi
+  sys_delay_us(1); // symbol tsw
   SPI_CS_1();
 
   return rxData;