first submission
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qiyongshuang
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/********************************** (C) COPYRIGHT *******************************
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* File Name : main.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2022/05/31
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* Description : Main program body.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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/*
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*@Note
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UDP Server example, demonstrating that the UDP Server receives data and loops back.
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For details on the selection of engineering chips,
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please refer to the "CH32V20x Evaluation Board Manual" under the CH32V20xEVT\EVT\PUB folder.
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*/
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#include "string.h"
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#include "debug.h"
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#include "eth_driver.h"
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u8 MACAddr[6]; //MAC address
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u8 IPAddr[4] = { 192, 168, 1, 10 }; //IP address
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u8 GWIPAddr[4] = { 192, 168, 1, 1 }; //Gateway IP address
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u8 IPMask[4] = { 255, 255, 255, 0 }; //subnet mask
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u16 srcport = 1000; //source port
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u8 SocketId;
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u8 SocketRecvBuf[RECE_BUF_LEN]; //socket receive buffer
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/*********************************************************************
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* @fn mStopIfError
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*
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* @brief check if error.
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*
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* @param iError - error constants.
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*
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* @return none
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*/
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void mStopIfError(u8 iError)
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{
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if (iError == WCHNET_ERR_SUCCESS)
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return;
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printf("Error: %02X\r\n", (u16) iError);
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}
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/*********************************************************************
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* @fn TIM2_Init
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*
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* @brief Initializes TIM2.
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*
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* @return none
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*/
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void TIM2_Init(void)
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{
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure = { 0 };
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
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TIM_TimeBaseStructure.TIM_Period = SystemCoreClock / 1000000 - 1;
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TIM_TimeBaseStructure.TIM_Prescaler = WCHNETTIMERPERIOD * 1000 - 1;
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TIM_TimeBaseStructure.TIM_ClockDivision = 0;
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
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TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
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TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
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TIM_Cmd(TIM2, ENABLE);
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TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
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NVIC_EnableIRQ(TIM2_IRQn);
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}
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/*********************************************************************
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* @fn WCHNET_UdpServerRecv
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*
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* @brief UDP Receive data function
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*
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*@param socinf - socket information.
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* ipaddr - The IP address from which the data was sent
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* port - source port
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* buf - pointer to the data buffer
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* len - received data length
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* @return none
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*/
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void WCHNET_UdpServerRecv(struct _SCOK_INF *socinf, u32 ipaddr, u16 port, u8 *buf, u32 len)
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{
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u8 ip_addr[4], i;
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printf("Remote IP:");
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for (i = 0; i < 4; i++) {
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ip_addr[i] = ipaddr & 0xff;
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printf("%d ", ip_addr[i]);
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ipaddr = ipaddr >> 8;
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}
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printf("srcport = %d len = %d socketid = %d\r\n", port, len,
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socinf->SockIndex);
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WCHNET_SocketUdpSendTo(socinf->SockIndex, buf, &len, ip_addr, port);
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}
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/*********************************************************************
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* @fn WCHNET_CreateUdpSocket
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*
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* @brief Create UDP Socket
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*
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* @return none
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*/
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void WCHNET_CreateUdpSocket(void)
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{
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u8 i;
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SOCK_INF TmpSocketInf;
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memset((void *) &TmpSocketInf, 0, sizeof(SOCK_INF));
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TmpSocketInf.SourPort = srcport;
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TmpSocketInf.ProtoType = PROTO_TYPE_UDP;
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TmpSocketInf.RecvStartPoint = (u32) SocketRecvBuf;
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TmpSocketInf.RecvBufLen = RECE_BUF_LEN;
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TmpSocketInf.AppCallBack = WCHNET_UdpServerRecv;
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i = WCHNET_SocketCreat(&SocketId, &TmpSocketInf);
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printf("WCHNET_SocketCreat %d\r\n", SocketId);
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mStopIfError(i);
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}
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/*********************************************************************
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* @fn WCHNET_HandleSockInt
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*
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* @brief Socket Interrupt Handle
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*
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* @param socketid - socket id.
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* intstat - interrupt status
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*
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* @return none
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*/
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void WCHNET_HandleSockInt(u8 socketid, u8 intstat)
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{
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if (intstat & SINT_STAT_RECV) //receive data
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{
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}
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if (intstat & SINT_STAT_CONNECT) //connect successfully
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{
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printf("TCP Connect Success\r\n");
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}
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if (intstat & SINT_STAT_DISCONNECT) //disconnect
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{
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printf("TCP Disconnect\r\n");
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}
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if (intstat & SINT_STAT_TIM_OUT) //timeout disconnect
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{
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printf("TCP Timeout\r\n");
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}
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}
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/*********************************************************************
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* @fn WCHNET_HandleGlobalInt
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*
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* @brief Global Interrupt Handle
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*
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* @return none
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*/
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void WCHNET_HandleGlobalInt(void)
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{
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u8 intstat;
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u16 i;
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u8 socketint;
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intstat = WCHNET_GetGlobalInt(); //get global interrupt flag
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if (intstat & GINT_STAT_UNREACH) //Unreachable interrupt
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{
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printf("GINT_STAT_UNREACH\r\n");
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}
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if (intstat & GINT_STAT_IP_CONFLI) //IP conflict
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{
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printf("GINT_STAT_IP_CONFLI\r\n");
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}
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if (intstat & GINT_STAT_PHY_CHANGE) //PHY status change
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{
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i = WCHNET_GetPHYStatus();
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if (i & PHY_Linked_Status)
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printf("PHY Link Success\r\n");
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}
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if (intstat & GINT_STAT_SOCKET) { //socket related interrupt
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for (i = 0; i < WCHNET_MAX_SOCKET_NUM; i++) {
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socketint = WCHNET_GetSocketInt(i);
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if (socketint)
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WCHNET_HandleSockInt(i, socketint);
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}
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}
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}
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/*********************************************************************
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* @fn main
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*
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* @brief Main program
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*
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* @return none
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*/
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int main(void)
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{
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u8 i;
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Delay_Init();
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USART_Printf_Init(115200); //USART initialize
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printf("UdpServer Test\r\n");
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printf("SystemClk:%d\r\n", SystemCoreClock);
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printf("net version:%x\n", WCHNET_GetVer());
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if ( WCHNET_LIB_VER != WCHNET_GetVer()) {
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printf("version error.\n");
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}
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WCHNET_GetMacAddr(MACAddr); //get the chip MAC address
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printf("mac addr:");
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for ( i = 0; i < 6; i++)
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printf("%x ", MACAddr[i]);
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printf("\n");
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TIM2_Init();
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i = ETH_LibInit(IPAddr, GWIPAddr, IPMask, MACAddr); //Ethernet library initialize
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mStopIfError(i);
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if (i == WCHNET_ERR_SUCCESS)
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printf("WCHNET_LibInit Success\r\n");
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WCHNET_CreateUdpSocket(); //Create UDP Socket
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while(1)
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{
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/*Ethernet library main task function,
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* which needs to be called cyclically*/
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WCHNET_MainTask();
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/*Query the Ethernet global interrupt,
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* if there is an interrupt, call the global interrupt handler*/
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if(WCHNET_QueryGlobalInt())
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{
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WCHNET_HandleGlobalInt();
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}
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}
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}
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