first submission

2023-02-01 14:19:13 +08:00
parent d534aad004
commit b79c6ac80d
3711 changed files with 745432 additions and 2 deletions
@@ -0,0 +1,210 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : main.c
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2021/06/06
+ * Description        : Main program body.
+*********************************************************************************
+* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+* Attention: This software (modified or not) and binary are used for 
+* microcontroller manufactured by Nanjing Qinheng Microelectronics.
+*******************************************************************************/
+
+/*
+ *@Note
+ CRC error check and master/slave mode transceiver routine:
+ Master:SPI1_SCK(PA5)\SPI1_MOSI(PA7).
+ Slave:SPI1_SCK(PA5)\SPI1_MISO(PA6).
+
+ This example demonstrates the use of CRC error checking, the Master sends and
+ the Slave receives.
+ Note: The two boards download the Master and Slave programs respectively, and
+ power on at the same time.
+     Hardware connection:PA5--PA5
+                         PA7--PA6
+
+*/
+
+#include "debug.h"
+
+/* SPI Mode Definition */
+#define HOST_MODE     0
+#define SLAVE_MODE    1
+
+/* SPI Communication Mode Selection */
+//#define SPI_MODE      HOST_MODE
+#define SPI_MODE   SLAVE_MODE
+
+/* Global define */
+#define Size          4
+
+/* Global Variable */
+u8 TxData[Size] = {0x01, 0x02, 0x03, 0x04};
+u8 RxData[Size];
+
+/*********************************************************************
+ * @fn      SPI_1Lines_HalfDuplex_Init
+ *
+ * @brief   Configuring the SPI for half-duplex communication.
+ *
+ * @return  none
+ */
+void SPI_1Lines_HalfDuplex_Init(void)
+{
+    GPIO_InitTypeDef GPIO_InitStructure = {0};
+    SPI_InitTypeDef  SPI_InitStructure = {0};
+
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_SPI1, ENABLE);
+
+#if(SPI_MODE == HOST_MODE)
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+#elif(SPI_MODE == SLAVE_MODE)
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+#endif
+
+#if(SPI_MODE == HOST_MODE)
+    SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Tx;
+    SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
+
+#elif(SPI_MODE == SLAVE_MODE)
+    SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Rx;
+    SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
+
+#endif
+
+    SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b;
+    SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
+    SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
+    SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
+    SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
+    SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
+    SPI_InitStructure.SPI_CRCPolynomial = 7;
+    SPI_Init(SPI1, &SPI_InitStructure);
+
+    SPI_CalculateCRC(SPI1, ENABLE);
+    SPI_Cmd(SPI1, ENABLE);
+}
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+    u8 i = 0, crcval;
+
+    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
+    Delay_Init();
+    USART_Printf_Init(115200);
+    printf("SystemClk:%d\r\n", SystemCoreClock);
+
+#if(SPI_MODE == SLAVE_MODE)
+    printf("SLAVE Mode\r\n");
+    Delay_Ms(1000);
+
+#endif
+    SPI_1Lines_HalfDuplex_Init();
+
+#if(SPI_MODE == HOST_MODE)
+    printf("HOST Mode\r\n");
+    Delay_Ms(2000);
+
+#endif
+
+    while(1)
+    {
+#if(SPI_MODE == HOST_MODE)
+        while(i < 3)
+        {
+            if(i < 2)
+            {
+                if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) != RESET)
+                {
+                    SPI_I2S_SendData(SPI1, TxData[i]);
+                    i++;
+                }
+            }
+            else
+            {
+                if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) != RESET)
+                {
+                    SPI_I2S_SendData(SPI1, TxData[i]);
+                    SPI_TransmitCRC(SPI1);
+                    i++;
+                }
+            }
+        }
+
+        while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) != RESET)
+        {
+            if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == RESET)
+            {
+                SPI_Cmd(SPI1, DISABLE);
+                crcval = SPI_GetCRC(SPI1, SPI_CRC_Tx);
+                printf("CRC:%02x\r\n", crcval);
+                while(1)
+                    ;
+            }
+        }
+
+#elif(SPI_MODE == SLAVE_MODE)
+        while(i < 4)
+        {
+            if(i < 2)
+            {
+                if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) != RESET)
+                {
+                    RxData[i] = SPI_I2S_ReceiveData(SPI1);
+                    i++;
+                }
+            }
+            else if(i == 2)
+            {
+                SPI_TransmitCRC(SPI1);
+                if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) != RESET)
+                {
+                    RxData[i] = SPI_I2S_ReceiveData(SPI1);
+                    i++;
+                }
+            }
+            else
+            {
+                if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) != RESET)
+                {
+                    RxData[i] = SPI_I2S_ReceiveData(SPI1);
+                    i++;
+                }
+            }
+        }
+
+        crcval = SPI_GetCRC(SPI1, SPI_CRC_Rx);
+        printf("CRC:%02x\r\n", crcval);
+
+        for(i = 0; i < 4; i++)
+        {
+            printf("Rxdata:%02x\r\n", RxData[i]);
+        }
+
+        while(1);
+
+#endif
+    }
+}