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 +1,139 @@
+/********************************** (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 flow control mode, master/slave mode, transceiver routine:
+ USART1_Tx(PA9)\USART1_Rx(PA10)\USART1_CTS(PA11)\USART1_RTS(PA12)
+ This example demonstrates UART1 hardware flow control data sending and receiving,
+ connect the UART1 Tx and Rx pins to the serial port tool respectively,
+ View through the host computer tool, CTS is connected to VCC, and data cannot be sent,
+ but connected to GND, data can be sent normally.
+
+*/
+
+#include "debug.h"
+
+/* Global typedef */
+typedef enum
+{
+    FAILED = 0,
+    PASSED = !FAILED
+} TestStatus;
+
+/* Global define */
+#define TxSize     (size(TxBuffer))
+#define size(a)    (sizeof(a) / sizeof(*(a)))
+
+/* Global Variable */
+u8 TxBuffer[] = "USART1 Hardware Flow Control Example: USART1-\
+Hyperterminal communication using hardware flow control\n\r";
+u8 RxBuffer[TxSize] = {0};
+u8 TxCnt = 0, RxCnt = 0;
+
+/*********************************************************************
+ * @fn      Buffercmp
+ *
+ * @brief   Compares two buffers
+ *
+ * @param   Buf1,Buf2 - buffers to be compared
+ *          BufferLength - buffer's length
+ *
+ * @return  PASSED - Buf1 identical to Buf
+ *          FAILED - Buf1 differs from Buf2
+ */
+TestStatus Buffercmp(uint8_t *Buf1, uint8_t *Buf2, uint16_t BufLength)
+{
+    while(BufLength--)
+    {
+        if(*Buf1 != *Buf2)
+        {
+            return FAILED;
+        }
+        Buf1++;
+        Buf2++;
+    }
+    return PASSED;
+}
+
+/*********************************************************************
+ * @fn      USART1_ReCFG
+ *
+ * @brief   Reinitialize the USART1.
+ *
+ * @return  none
+ */
+void USART1_ReCFG(void)
+{
+    GPIO_InitTypeDef  GPIO_InitStructure = {0};
+    USART_InitTypeDef USART_InitStructure = {0};
+
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);
+
+    /* USART1 TX-->A.9   RX-->A.10 */
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; /* RTS-->A.12 */
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; /* CTS-->A.11 */
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+    USART_InitStructure.USART_BaudRate = 115200;
+    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
+    USART_InitStructure.USART_StopBits = USART_StopBits_1;
+    USART_InitStructure.USART_Parity = USART_Parity_No;
+    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_RTS_CTS;
+    USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
+
+    USART_Init(USART1, &USART_InitStructure);
+    USART_Cmd(USART1, ENABLE);
+}
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
+    Delay_Init();
+    USART1_ReCFG();
+
+    printf("USART1 Hardware Flow Control TEST\r\n");
+
+    while(TxCnt < TxSize)
+    {
+        USART_SendData(USART1, TxBuffer[TxCnt++]);
+        while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
+    }
+    do
+    {
+        if((USART_GetFlagStatus(USART1, USART_FLAG_RXNE) != RESET) && (RxCnt < TxSize))
+        {
+            RxBuffer[RxCnt] = USART_ReceiveData(USART1);
+            USART_SendData(USART1, RxBuffer[RxCnt++]); /* send it when receive a byte */
+        }
+    } while((RxBuffer[RxCnt - 1] != '\r') && (RxCnt != TxSize));
+
+    while(1)
+    {
+    }
+}