439 lines
16 KiB
C
439 lines
16 KiB
C
/********************************** (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 : 2022/01/18
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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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ETH_CFG example, create a UDP Server to communicate with the host computer, configure WCHNET features,
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including parameters, and create a new communication.
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This example uses the software for the 1_Tool_Doc folder under "WCH NET Network Parameter Configuration Tool".
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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 "eth_driver.h"
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#include "ModuleConfig.h"
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__attribute__((aligned(4))) u8 Default_cfg[MODULE_CFG_LEN]= { //Module default configuration
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'W','C','H','N','E','T','M','O','D','U','L','E',0,0,0,0,0,0,0,0,0, //module name
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NET_MODULE_TYPE_NONE, //The module is in default mode (no mode is enabled by default)
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192,168,1,10, //The IP address of the module
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255,255,255,0, //The subnet mask of the module
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192,168,1,1, //The gateway address of the module
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1000%256,1000/256, //Module source port
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192,168,1,100, //destination IP address
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1000%256,1000/256 , //destination port
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checkcode1,checkcode2 //Verification code, used to verify configuration information
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};
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u8 sockFlag;
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u8 Configbuf[MODULE_CFG_LEN];
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pmodule_cfg CFG = (pmodule_cfg)Configbuf;
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u8 MACAddr[6]; //MAC address
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u8 IPAddr[4]; //IP address
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u8 GWIPAddr[4]; //Gateway IP address
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u8 IPMask[4]; //subnet mask
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u8 DESIP[4]; //destination IP address
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u8 SocketId; //socket id
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u8 SocketRecvBuf[WCHNET_MAX_SOCKET_NUM][RECE_BUF_LEN]; //socket data buff
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/*Host computer communication parameters*/
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u8 brocastIp[4] = {255,255,255,255}; //Broadcast IP address, cannot be changed
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u16 brocastPort = 60000; //Host computer communication port
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u16 localPort = 50000; //local communication port
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u8 MyBuf[RECE_BUF_LEN];
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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;
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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 - IP address
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* port - port
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* buf - data buff
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* len - data length
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*
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* @return none
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*/
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void WCHNET_UdpServerRecv(struct _SOCK_INF *socinf,u32 ipaddr,u16 port,u8 *buf,u32 len)
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{
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u8 i;
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i = ParseConfigbuf(buf) ; //Analytical data
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if(i){
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NVIC_SystemReset();
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}
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}
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/*********************************************************************
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* @fn WCHNET_UdpSRecv
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*
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* @brief UDP data callback.
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*
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* @param socinf - socket information.
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* ipaddr - IP address
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* port - port
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* buf - data buff
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* len - data length
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*
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* @return none
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*/
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void WCHNET_UdpSRecv(struct _SOCK_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("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("%-4d",ip_addr[i]);
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ipaddr = ipaddr>>8;
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}
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printf("port=%-8d len=%-8d sockeid=%-4d\n",port,len,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_Create_Communication_Socket
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*
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* @brief create socket.
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*
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* @return none
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*/
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void WCHNET_Create_Communication_Socket(void)
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{
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u8 i;
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u8 *desip = CFG->dest_ip;
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SOCK_INF TmpSocketInf;
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memset((void *)&TmpSocketInf,0,sizeof(SOCK_INF));
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memcpy((void *)TmpSocketInf.IPAddr,desip,4);
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TmpSocketInf.DesPort = ((u16)CFG->dest_port[0]+(u16)CFG->dest_port[1]*256);
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TmpSocketInf.SourPort = ((u16)CFG->src_port[0]+(u16)CFG->src_port[1]*256);
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switch(CFG->type){
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case NET_MODULE_TYPE_TCP_S:
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TmpSocketInf.ProtoType = PROTO_TYPE_TCP;
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sockFlag= NET_MODULE_TYPE_TCP_S;
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break;
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case NET_MODULE_TYPE_TCP_C:
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TmpSocketInf.ProtoType = PROTO_TYPE_TCP;
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sockFlag= NET_MODULE_TYPE_TCP_C;
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break;
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case NET_MODULE_TYPE_UDP_S:
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TmpSocketInf.ProtoType = PROTO_TYPE_UDP;
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TmpSocketInf.AppCallBack = WCHNET_UdpSRecv;
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sockFlag= NET_MODULE_TYPE_UDP_S;
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break;
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case NET_MODULE_TYPE_UDP_C:
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TmpSocketInf.ProtoType = PROTO_TYPE_UDP;
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sockFlag= NET_MODULE_TYPE_UDP_C;
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break;
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default:
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break;
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}
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TmpSocketInf.RecvStartPoint = (u32)SocketRecvBuf[1];
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TmpSocketInf.RecvBufLen = RECE_BUF_LEN ;
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i = WCHNET_SocketCreat(&SocketId,&TmpSocketInf);
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mStopIfError(i);
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switch(CFG->type){
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case NET_MODULE_TYPE_TCP_S:
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WCHNET_SocketListen(SocketId);
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printf("listening\n");
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break;
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case NET_MODULE_TYPE_TCP_C:
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WCHNET_SocketConnect(SocketId);
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printf("connecting\n");
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break;
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default:
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break;
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}
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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 = localPort;
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TmpSocketInf.ProtoType = PROTO_TYPE_UDP;
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TmpSocketInf.RecvStartPoint = (u32)SocketRecvBuf[0];
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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_DataLoopback
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*
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* @brief Data loopback function.
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*
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* @param id - socket id.
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*
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* @return none
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*/
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void WCHNET_DataLoopback(u8 id)
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{
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#if 1
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u8 i;
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u32 len;
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u32 endAddr = SocketInf[id].RecvStartPoint + SocketInf[id].RecvBufLen; //Receive buffer end address
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if ((SocketInf[id].RecvReadPoint + SocketInf[id].RecvRemLen) > endAddr) { //Calculate the length of the received data
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len = endAddr - SocketInf[id].RecvReadPoint;
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}
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else {
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len = SocketInf[id].RecvRemLen;
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}
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i = WCHNET_SocketSend(id, (u8 *) SocketInf[id].RecvReadPoint, &len); //send data
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if (i == WCHNET_ERR_SUCCESS) {
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WCHNET_SocketRecv(id, NULL, &len); //Clear sent data
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}
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#else
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u32 len, totallen;
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u8 *p = MyBuf, TransCnt = 255;
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len = WCHNET_SocketRecvLen(id, NULL); //query length
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printf("Receive Len = %d\r\n", len);
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totallen = len;
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WCHNET_SocketRecv(id, MyBuf, &len); //Read the data of the receive buffer into MyBuf
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while(1){
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len = totallen;
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WCHNET_SocketSend(id, p, &len); //Send the data
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totallen -= len; //Subtract the sent length from the total length
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p += len; //offset buffer pointer
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if( !--TransCnt ) break; //Timeout exit
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if(totallen) continue; //If the data is not sent, continue to send
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break; //After sending, exit
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}
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#endif
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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 initstat)
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{
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if(initstat & SINT_STAT_RECV) //receive data
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{
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WCHNET_DataLoopback(socketid); //Data loopback
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}
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if(initstat & SINT_STAT_CONNECT) //connect successfully
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{
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if(sockFlag == NET_MODULE_TYPE_TCP_S){
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WCHNET_ModifyRecvBuf(socketid,(u32)SocketRecvBuf[socketid],RECE_BUF_LEN);
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}
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printf("TCP Connect Success\r\n");
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}
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if(initstat & SINT_STAT_DISCONNECT) //disconnect
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{
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printf("TCP Disconnect\r\n");
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WCHNET_Create_Communication_Socket();
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}
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if(initstat & SINT_STAT_TIM_OUT) //timeout disconnect
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{
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printf("TCP Timeout\r\n");
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WCHNET_Create_Communication_Socket();
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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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u8 socketint;
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u16 i;
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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(); //socket related interrupt
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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)
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{
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for(i = 0; i < WCHNET_MAX_SOCKET_NUM; i ++)
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{
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socketint = WCHNET_GetSocketInt(i);
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if(socketint)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 GPIOInit
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*
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* @brief GPIO initialize
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*
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* @return none
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*/
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void GPIOInit(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure = {0};
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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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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GPIOInit();
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printf("ETH CFG Test\r\n");
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if((SystemCoreClock == 60000000) || (SystemCoreClock == 120000000))
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printf("SystemClk:%d\r\n", SystemCoreClock);
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else
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printf("Error: Please choose 60MHz and 120MHz clock when using Ethernet!\r\n");
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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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/*After the button(PB6) is pressed, initialize WCHNET
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* and execute the default configuration*/
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if(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_6) == 0) {
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Delay_Ms(100);
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if(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_6) == 0){
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while(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_6) == 0);
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CFG_ERASE(PAGE_WRITE_START_ADDR,FLASH_PAGE_SIZE);
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CFG_WRITE( PAGE_WRITE_START_ADDR,Default_cfg,MODULE_CFG_LEN );
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NVIC_SystemReset();
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}
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}
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CFG_READ( PAGE_WRITE_START_ADDR,Configbuf,MODULE_CFG_LEN ); //Read the configuration information saved in the EEPROM
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/*If the information stored in the EEPROM is invalid,
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* or the WCHNET has not been configured by the host
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* computer, then initialize the WCHNET according to
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* the default configuration*/
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if((CFG->cfg_flag[0]!=checkcode1)||(CFG->cfg_flag[1]!=checkcode2)){ //Check whether the information in the EEPROM is valid
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CFG_ERASE(PAGE_WRITE_START_ADDR,FLASH_PAGE_SIZE);
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CFG_WRITE(PAGE_WRITE_START_ADDR,Default_cfg,MODULE_CFG_LEN );
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NVIC_SystemReset();
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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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memcpy(IPAddr,CFG->src_ip,sizeof(CFG->src_ip));
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memcpy(GWIPAddr,CFG->getway,sizeof(CFG->getway));
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memcpy(IPMask,CFG->mask,sizeof(CFG->mask));
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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) printf("WCHNET_LibInit Success\r\n");
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WCHNET_CreateUdpSocket(); //Create UDP Socket
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if(CFG->type != NET_MODULE_TYPE_NONE){ //No mode is enabled by default
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WCHNET_Create_Communication_Socket(); //Create a socket configured by the host computer
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}
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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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