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qiyongshuang
2023-02-01 14:19:13 +08:00
parent d534aad004
commit b79c6ac80d
3711 changed files with 745432 additions and 2 deletions
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EVT/EXAM/ETH/DHCP/User/main.c
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/********************************** (C) COPYRIGHT *******************************
* File Name : main.c
* Author : WCH
* Version : V1.0.0
* Date : 2022/05/20
* 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
DHCP example, demonstrating that DHCP automatically obtains an IP address.
For details on the selection of engineering chips,
please refer to the "CH32V20x Evaluation Board Manual" under the CH32V20xEVT\EVT\PUB folder.
*/
#include "string.h"
#include "debug.h"
#include "eth_driver.h"
u8 MACAddr[6]; //MAC address
u8 IPAddr[4] = {0, 0, 0, 0}; //IP address
u8 GWIPAddr[4] = {0, 0, 0, 0}; //Gateway IP address
u8 IPMask[4] = {0, 0, 0, 0}; //subnet mask
u8 DESIP[4] = {192, 168, 1, 100}; //destination IP address
u16 desport = 1000; //destination port
u16 srcport = 1000; //source port
u8 SocketId;
u8 SocketRecvBuf[WCHNET_MAX_SOCKET_NUM][RECE_BUF_LEN]; //socket receive buffer
u8 MyBuf[RECE_BUF_LEN];
/*********************************************************************
* @fn mStopIfError
*
* @brief check if error.
*
* @param iError - error constants.
*
* @return none
*/
void mStopIfError(u8 iError)
{
if (iError == WCHNET_ERR_SUCCESS)
return;
printf("Error: %02X\r\n", (u16) iError);
}
/*********************************************************************
* @fn TIM2_Init
*
* @brief Initializes TIM2.
*
* @return none
*/
void TIM2_Init(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure = {0};
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
TIM_TimeBaseStructure.TIM_Period = SystemCoreClock / 1000000 - 1;
TIM_TimeBaseStructure.TIM_Prescaler = WCHNETTIMERPERIOD * 1000 - 1;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
TIM_Cmd(TIM2, ENABLE);
TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
NVIC_SetPriority(TIM2_IRQn, 0x80);
NVIC_EnableIRQ(TIM2_IRQn);
}
/*********************************************************************
* @fn WCHNET_CreateTcpSocket
*
* @brief Create TCP Socket
*
* @return none
*/
void WCHNET_CreateTcpSocket(void)
{
u8 i;
SOCK_INF TmpSocketInf;
memset((void *) &TmpSocketInf, 0, sizeof(SOCK_INF));
memcpy((void *) TmpSocketInf.IPAddr, DESIP, 4);
TmpSocketInf.DesPort = desport;
TmpSocketInf.SourPort = srcport++;
TmpSocketInf.ProtoType = PROTO_TYPE_TCP;
TmpSocketInf.RecvBufLen = RECE_BUF_LEN;
i = WCHNET_SocketCreat(&SocketId, &TmpSocketInf);
printf("WCHNET_SocketCreat %d\r\n", SocketId);
mStopIfError(i);
i = WCHNET_SocketConnect(SocketId); //make a TCP connection
mStopIfError(i);
}
/*********************************************************************
* @fn WCHNET_DataLoopback
*
* @brief Data loopback function.
*
* @param id - socket id.
*
* @return none
*/
void WCHNET_DataLoopback(u8 id)
{
#if 1
u8 i;
u32 len;
u32 endAddr = SocketInf[id].RecvStartPoint + SocketInf[id].RecvBufLen; //Receive buffer end address
if ((SocketInf[id].RecvReadPoint + SocketInf[id].RecvRemLen) > endAddr) { //Calculate the length of the received data
len = endAddr - SocketInf[id].RecvReadPoint;
}
else {
len = SocketInf[id].RecvRemLen;
}
i = WCHNET_SocketSend(id, (u8 *) SocketInf[id].RecvReadPoint, &len); //send data
if (i == WCHNET_ERR_SUCCESS) {
WCHNET_SocketRecv(id, NULL, &len); //Clear sent data
}
#else
u32 len, totallen;
u8 *p = MyBuf;
len = WCHNET_SocketRecvLen(id, NULL); //query length
totallen = len;
WCHNET_SocketRecv(id, MyBuf, &len); //Read the data of the receive buffer into MyBuf
while(1){
len = totallen;
WCHNET_SocketSend(id, p, &len); //Send the data
totallen -= len; //Subtract the sent length from the total length
p += len; //offset buffer pointer
if(totallen)continue; //If the data is not sent, continue to send
break; //After sending, exit
}
#endif
}
/*********************************************************************
* @fn WCHNET_HandleSockInt
*
* @brief Socket Interrupt Handle
*
* @param socketid - socket id.
* intstat - interrupt status
*
* @return none
*/
void WCHNET_HandleSockInt(u8 socketid, u8 intstat)
{
if (intstat & SINT_STAT_RECV) //receive data
{
WCHNET_DataLoopback(socketid); //Data loopback
}
if (intstat & SINT_STAT_CONNECT) //connect successfully
{
WCHNET_ModifyRecvBuf(socketid, (u32) SocketRecvBuf[socketid], RECE_BUF_LEN);
printf("TCP Connect Success\r\n");
}
if (intstat & SINT_STAT_DISCONNECT) //disconnect
{
printf("TCP Disconnect\r\n");
}
if (intstat & SINT_STAT_TIM_OUT) //timeout disconnect
{
printf("TCP Timeout\r\n");
WCHNET_CreateTcpSocket();
}
}
/*********************************************************************
* @fn WCHNET_HandleGlobalInt
*
* @brief Global Interrupt Handle
*
* @return none
*/
void WCHNET_HandleGlobalInt(void)
{
u8 intstat;
u16 i;
u8 socketint;
intstat = WCHNET_GetGlobalInt(); //get global interrupt flag
if (intstat & GINT_STAT_UNREACH) //Unreachable interrupt
{
printf("GINT_STAT_UNREACH\r\n");
}
if (intstat & GINT_STAT_IP_CONFLI) //IP conflict
{
printf("GINT_STAT_IP_CONFLI\r\n");
}
if (intstat & GINT_STAT_PHY_CHANGE) //PHY status change
{
i = WCHNET_GetPHYStatus();
if (i & PHY_Linked_Status)
printf("PHY Link Success\r\n");
}
if (intstat & GINT_STAT_SOCKET) { //socket related interrupt
for (i = 0; i < WCHNET_MAX_SOCKET_NUM; i++) {
socketint = WCHNET_GetSocketInt(i);
if (socketint)
WCHNET_HandleSockInt(i, socketint);
}
}
}
/*********************************************************************
* @fn WCHNET_DHCPCallBack
*
* @brief DHCPCallBack
*
* @param status - status returned by DHCP
* arg - Data returned by DHCP
*
* @return DHCP status
*/
u8 WCHNET_DHCPCallBack(u8 status, void *arg)
{
u8 *p;
u8 tmp[4] = {0, 0, 0, 0};
if(!status)
{
p = arg;
printf("DHCP Success\r\n");
/*If the obtained IP is the same as the last IP, exit this function.*/
if(!memcmp(IPAddr, p ,sizeof(IPAddr)))
return READY;
/*Determine whether it is the first successful IP acquisition*/
if(memcmp(IPAddr, tmp ,sizeof(IPAddr))){
/*The obtained IP is different from the last value,
* then disconnect the last connection.*/
WCHNET_SocketClose(SocketId, TCP_CLOSE_NORMAL);
}
memcpy(IPAddr, p, 4);
memcpy(GWIPAddr, &p[4], 4);
memcpy(IPMask, &p[8], 4);
printf("IPAddr = %d.%d.%d.%d \r\n", (u16)IPAddr[0], (u16)IPAddr[1],
(u16)IPAddr[2], (u16)IPAddr[3]);
printf("GWIPAddr = %d.%d.%d.%d \r\n", (u16)GWIPAddr[0], (u16)GWIPAddr[1],
(u16)GWIPAddr[2], (u16)GWIPAddr[3]);
printf("IPAddr = %d.%d.%d.%d \r\n", (u16)IPMask[0], (u16)IPMask[1],
(u16)IPMask[2], (u16)IPMask[3]);
printf("DNS1: %d.%d.%d.%d \r\n", p[12], p[13], p[14], p[15]);
printf("DNS2: %d.%d.%d.%d \r\n", p[16], p[17], p[18], p[19]);
WCHNET_CreateTcpSocket(); //Create a TCP connection
return READY;
}
else
{
printf("DHCP Fail %02x \r\n", status);
/*Determine whether it is the first successful IP acquisition*/
if(memcmp(IPAddr, tmp ,sizeof(IPAddr))){
/*The obtained IP is different from the last value*/
WCHNET_SocketClose(SocketId, TCP_CLOSE_NORMAL);
}
return NoREADY;
}
}
/*********************************************************************
* @fn main
*
* @brief Main program
*
* @return none
*/
int main(void)
{
u8 i;
Delay_Init();
USART_Printf_Init(115200); //USART initialize
printf("DHCP Test\r\n");
printf("SystemClk:%d\r\n",SystemCoreClock);
printf("net version:%x\n",WCHNET_GetVer());
if( WCHNET_LIB_VER != WCHNET_GetVer() ){
printf("version error.\n");
}
WCHNET_GetMacAddr(MACAddr); //get the chip MAC address
printf("mac addr:");
for(i = 0; i < 6; i++)
printf("%x ",MACAddr[i]);
printf("\n");
TIM2_Init();
WCHNET_DHCPSetHostname("WCHNET"); //Configure DHCP host name
i = ETH_LibInit(IPAddr,GWIPAddr,IPMask,MACAddr); //Ethernet library initialize
mStopIfError(i);
if(i == WCHNET_ERR_SUCCESS)
printf("WCHNET_LibInit Success\r\n");
WCHNET_DHCPStart(WCHNET_DHCPCallBack); //Start DHCP
while(1)
{
/*Ethernet library main task function,
* which needs to be called cyclically*/
WCHNET_MainTask();
/*Query the Ethernet global interrupt,
* if there is an interrupt, call the global interrupt handler*/
if(WCHNET_QueryGlobalInt())
{
WCHNET_HandleGlobalInt();
}
}
}