update

app/MDK-ARM/app.uvguix.29643

@@ -1883,9 +1883,9 @@
       </Doc>
       <Doc>
         <Name>..\..\usersrc\usermain.c</Name>
-        <ColumnNumber>34</ColumnNumber>
+        <ColumnNumber>20</ColumnNumber>
         <TopLine>72</TopLine>
-        <CurrentLine>95</CurrentLine>
+        <CurrentLine>88</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>

usersrc/usermain.c

@@ -18,6 +18,22 @@
 
 #define Dummy_Byte 0xFF // 读取时MISO发送的数据，可以为任意数据
 
+#define delay_us 5
+
+// 50us
+//
+// CS    11000
+// SCK
+// MOSI
+//
+//
+
+// uint8_t table[3][52] = {
+//     {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1},
+//     {1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
+//     {1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1},
+// };
+
 void sys_delay_us(uint32_t us)
 {
   uint16_t counter = 0;
@@ -29,6 +45,17 @@ void sys_delay_us(uint32_t us)
   }
   HAL_TIM_Base_Stop(&htim7);
 }
+// void dotable()
+// {
+//   for (size_t i = 0; i < 52; i++)
+//   {
+
+//     table[0][i] ? SPI_CS_1() : SPI_CS_0();
+//     table[1][i] ? SPI_SCK_1() : SPI_SCK_0();
+//     table[2][i] ? SPI_MOSI_1() : SPI_MOSI_0();
+//     sys_delay_us(5);
+//   }
+// }
 
 // SPI可以同时读取和写入数据，因此一个函数即可满足要求
 uint8_t SPI_ReadWriteByte(uint8_t txData)
@@ -37,9 +64,9 @@ uint8_t SPI_ReadWriteByte(uint8_t txData)
   uint8_t rxData = 0;
 
   SPI_CS_0();
-  sys_delay_us(1); // symbol tsw
+  sys_delay_us(delay_us); // symbol tsw
   SPI_SCK_0();
-  sys_delay_us(1);
+  sys_delay_us(delay_us + 3);
 
   for (i = 0; i < 8; i++)
   {
@@ -55,33 +82,33 @@ uint8_t SPI_ReadWriteByte(uint8_t txData)
       SPI_MOSI_0();
     }
     txData <<= 1;
-    sys_delay_us(1);
+    sys_delay_us(delay_us);
 
     SPI_SCK_0();
-    sys_delay_us(1);
+    sys_delay_us(delay_us);
     // 数据接收
     // rxData <<= 1;
     // if (SPI_READ_MISO())
     // {
     //   rxData |= 0x01;
     // }
-    sys_delay_us(1);
+    sys_delay_us(delay_us);
   }
 
   for (i = 0; i < 8; i++)
   {
     SPI_SCK_1();
-    sys_delay_us(1);
-    sys_delay_us(1);
+    sys_delay_us(delay_us);
+    sys_delay_us(delay_us);
     SPI_SCK_0();
-    sys_delay_us(1);
-    sys_delay_us(1);
+    sys_delay_us(delay_us);
+    sys_delay_us(delay_us);
   }
 
   SPI_SCK_1();
-  SPI_MOSI_1(); // 数据线空闲高电平
-  sys_delay_us(1); // symbol thi
-  sys_delay_us(1); // symbol tsw
+  SPI_MOSI_1();           // 数据线空闲高电平
+  sys_delay_us(delay_us); // symbol thi
+  sys_delay_us(delay_us); // symbol tsw
   SPI_CS_1();
 
   return rxData;
@@ -107,8 +134,9 @@ void user_main()
 
   while (1)
   {
-    temp = SPI_ReadWriteByte(0x86);
-    HAL_UART_Transmit(&huart1, &temp, 1, 100);
-    HAL_Delay(100);
+    // dotable();
+    SPI_ReadWriteByte(0x86);
+    // HAL_UART_Transmit(&huart1, &temp, 1, 100);
+    HAL_Delay(10);
   }
 }