246 lines
7.7 KiB
C
246 lines
7.7 KiB
C
/********************************** (C) COPYRIGHT *******************************
|
|
* File Name : main.c
|
|
* Author : WCH
|
|
* Version : V1.0.0
|
|
* Date : 2022/01/18
|
|
* 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
|
|
DNS example ,demonstrate that DHCP automatically obtains an IP address and then requests domain name resolution.
|
|
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] = {255, 255, 255, 255}; //destination IP address
|
|
u16 DnsPort = 53;
|
|
__attribute__((__aligned__(4))) u8 RemoteIp[4];
|
|
|
|
/*********************************************************************
|
|
* @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_EnableIRQ(TIM2_IRQn);
|
|
}
|
|
|
|
/*********************************************************************
|
|
* @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
|
|
{
|
|
}
|
|
if (intstat & SINT_STAT_CONNECT) //connect successfully
|
|
{
|
|
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");
|
|
}
|
|
}
|
|
|
|
/*********************************************************************
|
|
* @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_DNSCallBack
|
|
*
|
|
* @brief DNSCallBack
|
|
*
|
|
* @return none
|
|
*/
|
|
void WCHNET_DNSCallBack(const char *name, u8 *ipaddr, void *callback_arg)
|
|
{
|
|
if(ipaddr == NULL)
|
|
{
|
|
printf("DNS Fail\r\n");
|
|
return;
|
|
}
|
|
printf("Host Name = %s\r\n", name);
|
|
printf("IP= %d.%d.%d.%d\r\n", ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3]);
|
|
if(callback_arg != NULL)
|
|
{
|
|
printf("callback_arg = %02x\r\n", (*(u8 *)callback_arg));
|
|
}
|
|
WCHNET_DNSStop(); //stop DNS,and release socket
|
|
}
|
|
|
|
/*********************************************************************
|
|
* @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;
|
|
|
|
if(!status)
|
|
{
|
|
p = arg;
|
|
printf("DHCP Success\r\n");
|
|
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]); //DNS server address provided by the router
|
|
printf("DNS2: %d.%d.%d.%d \r\n", p[16], p[17], p[18], p[19]);
|
|
|
|
WCHNET_InitDNS(&p[12], DnsPort); //Set DNS server IP address, and DNS server port is 53
|
|
WCHNET_HostNameGetIp("www.wch.cn", RemoteIp, WCHNET_DNSCallBack, NULL); //Start DNS
|
|
return READY;
|
|
}
|
|
else
|
|
{
|
|
printf("DHCP Fail %02x \r\n", status);
|
|
return NoREADY;
|
|
}
|
|
}
|
|
|
|
/*********************************************************************
|
|
* @fn main
|
|
*
|
|
* @brief Main program
|
|
*
|
|
* @return none
|
|
*/
|
|
int main(void)
|
|
{
|
|
u8 i;
|
|
|
|
Delay_Init();
|
|
USART_Printf_Init(115200); //USART initialize
|
|
printf("DNS 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();
|
|
}
|
|
}
|
|
}
|