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 +1,195 @@
+/********************************** (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
+ Hardware NSS mode, master/slave mode, data transceiver:
+ Master:SPI1_NSS(PA4)\SPI1_SCK(PA5)\SPI1_MISO(PA6)\SPI1_MOSI(PA7).
+ Slave:SPI1_NSS(PA4)\SPI1_SCK(PA5)\SPI1_MISO(PA6)\SPI1_MOSI(PA7).
+
+ This example demonstrates that in hardware NSS mode, the Master and Slave can
+ transmit and receive in full duplex at the same time.
+ Note: The two boards download the Master and Slave programs respectively, and
+ power on at the same time.
+     Hardware connection:
+               PA5 -- PA5
+               PA6 -- PA6
+               PA7 -- PA7
+
+*/
+
+#include "debug.h"
+#include "string.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          18
+
+/* Global Variable */
+
+u16 TxData[Size] = {0x0101, 0x0202, 0x0303, 0x0404, 0x0505, 0x0606,
+                    0x1111, 0x1212, 0x1313, 0x1414, 0x1515, 0x1616,
+                    0x2121, 0x2222, 0x2323, 0x2424, 0x2525, 0x2626};
+u16 RxData[Size];
+
+/*********************************************************************
+ * @fn      SPI_FullDuplex_Init
+ *
+ * @brief   Configuring the SPI for full-duplex communication.
+ *
+ * @return  none
+ */
+void SPI_FullDuplex_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_4;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+    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_6;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+    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_4;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+    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_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_IN_FLOATING;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+#endif
+
+    SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
+
+#if(SPI_MODE == HOST_MODE)
+    SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
+
+#elif(SPI_MODE == SLAVE_MODE)
+    SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
+
+#endif
+
+    SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b;
+    SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
+    SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
+    SPI_InitStructure.SPI_NSS = SPI_NSS_Hard;
+    SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
+    SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_LSB;
+    SPI_InitStructure.SPI_CRCPolynomial = 7;
+    SPI_Init(SPI1, &SPI_InitStructure);
+
+    SPI_SSOutputCmd(SPI1, DISABLE);
+
+    SPI_Cmd(SPI1, ENABLE);
+}
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+    u8 i = 0;
+    u8 j = 0;
+    u8 value;
+
+    Delay_Init();
+    USART_Printf_Init(460800);
+    printf("SystemClk:%d\r\n", SystemCoreClock);
+
+#if(SPI_MODE == SLAVE_MODE)
+    printf("Slave Mode\r\n");
+    Delay_Ms(1000);
+
+#endif
+
+    SPI_FullDuplex_Init();
+
+#if(SPI_MODE == HOST_MODE)
+    printf("Host Mode\r\n");
+    Delay_Ms(2000);
+
+#endif
+
+    while(1)
+    {
+        while((i < 18) || (j < 18))
+        {
+            if(i < 18)
+            {
+                if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) != RESET)
+                {
+                    SPI_I2S_SendData(SPI1, TxData[i]);
+                    i++;
+                }
+            }
+
+            if(j < 18)
+            {
+                if(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) != RESET)
+                {
+                    RxData[j] = SPI_I2S_ReceiveData(SPI1);
+                    j++;
+                }
+            }
+        }
+
+        value = memcmp(TxData, RxData, Size);
+
+        if(value == 0)
+        {
+            printf("Same\r\n");
+        }
+        else
+        {
+            printf("Different\r\n");
+        }
+
+        while(1);
+    }
+}