w5500 dhcp优化版+udp nrf52832程序源码 M4内核芯片

ID:326061 · 发表于 2019-1-8 11:09

用官网W5500库版本的DHCP例子申请10次会有5次获取不到IP 卡在了discover步骤，
经过优化，现在自测了50多遍，100%可以申请到IP。

主控用的nrf52832 cortex m4内核硬件spi
SDK为nRF_SDK_15.2.0
把解压后的目录放nRF_SDK_15.2.0\examples\ble_central下编译就可以成功。

代码预览

#include "ethernet.h"
#include "dhcp.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define SOCK_TCPS 0
/* Private macro -------------------------------------------------------------*/
uint8_t gSEND_BUFF[SEND_BUFF_SIZE];
// Default Network Configuration
wiz_NetInfo gWIZNETINFO = { .mac = {0x00, 0x02, 0x04,0x06, 0x08, 0x10},
.ip = {192,168,1,2 },
.sn = {255,255,2555,0},
.gw = {0, 0, 0, 0},
.dns = {1,2,4,8},
.dhcp = NETINFO_DHCP };
void network_init(void);
void set_macaddr(void)
{
gWIZNETINFO.mac[0] = (uint8_t )(NRF_FICR->DEVICEADDR[0]);
gWIZNETINFO.mac[1] = (uint8_t )(NRF_FICR->DEVICEADDR[0]>>8);
gWIZNETINFO.mac[2] = (uint8_t )(NRF_FICR->DEVICEADDR[0]>>16);
gWIZNETINFO.mac[3] = (uint8_t )(NRF_FICR->DEVICEADDR[0]>>24);
gWIZNETINFO.mac[4] = (uint8_t )(NRF_FICR->DEVICEADDR[1]);
gWIZNETINFO.mac[5] = (uint8_t )(NRF_FICR->DEVICEADDR[1]>>8);
}
uint8_t DHCP_message[128];
void ethernet_init(void)
{
uint8_t tmp;
uint8_t memsize[2][8] = {{2,2,2,2,2,2,2,2},{2,2,2,2,2,2,2,2}};
SPI_Configuration();
memset((char *)gSEND_BUFF,0,SEND_BUFF_SIZE);
reg_wizchip_cris_cbfunc(SPI_CrisEnter, SPI_CrisExit); //注册临界区函数
/* Chip selection call back */
#if _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_VDM_
reg_wizchip_cs_cbfunc(SPI_CS_Select, SPI_CS_Deselect);//注册SPI片选信号函数
#elif _WIZCHIP_IO_MODE_ == _WIZCHIP_IO_MODE_SPI_FDM_
reg_wizchip_cs_cbfunc(SPI_CS_Select, SPI_CS_Deselect); // CS must be tried with LOW.
#else
#if (_WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_SIP_) != _WIZCHIP_IO_MODE_SIP_
#error "Unknown _WIZCHIP_IO_MODE_"
#else
reg_wizchip_cs_cbfunc(wizchip_select, wizchip_deselect);
#endif
#endif
/* SPI Read & Write callback function */
reg_wizchip_spi_cbfunc(SPI_ReadByte, SPI_WriteByte); //注册读写函数
/* WIZCHIP SOCKET Buffer initialize */
if(ctlwizchip(CW_INIT_WIZCHIP,(void*)memsize) == -1){
while(1)
{
NRF_LOG_DEBUG("WIZCHIP Initialized fail.\r\n");
nrf_delay_ms(500);
}
}
NRF_LOG_DEBUG("WIZCHIP Initialized Successful.\r\n");
/* PHY link status check */
do{
if(ctlwizchip(CW_GET_PHYLINK, (void*)&tmp) == -1)
{
NRF_LOG_DEBUG("Unknown PHY Link stauts.\r\n");
}
}while(tmp == PHY_LINK_OFF);
NRF_LOG_DEBUG("phy running.\n");
set_macaddr();
memset(DHCP_message,0,128);
DHCP_init(0,DHCP_message);
/* Network initialization */
network_init();
}
void show_netinfo(void);
void ethernet_handle(void)
{
uint8_t dhcp_res;
dhcp_res = DHCP_run();
if(dhcp_res != DHCP_IP_LEASED)
{
NRF_LOG_INFO("DHCP_run... 返回值:%d\n",dhcp_res);
nrf_delay_ms(1000);
return;
}
static uint8_t temp = 0;
if(temp == 0)
{
NRF_LOG_INFO("DHCP成功申请到IP地址\n");
show_netinfo();
temp = 1;
}
switch(getSn_SR(0))
{
case SOCK_UDP:
if(getSn_IR(0) & Sn_IR_RECV)
{
setSn_IR(0, Sn_IR_RECV);
}
#if 0
if((ret=getSn_RX_RSR(0))>0)
{
memset(gDATABUF,0,ret+1);
recvfrom(0,gDATABUF, ret, DstIP,&DstPort);
NRF_LOG_DEBUG("%s\r\n",gDATABUF);
sendto(0,gDATABUF,ret, DstIP, DstPort);
}
#endif
break;
case SOCK_CLOSED: // Socket处于关闭状态
socket(0,Sn_MR_UDP,UDP_LOCAL_PORT,0x00); // 打开Socket0，并配置为UDP模式，打开一个本地端口
break;
}
}
void show_netinfo(void)
{
uint8_t tmpstr[6];
ctlnetwork(CN_GET_NETINFO, (void*)&gWIZNETINFO);
// Display Network Information
ctlwizchip(CW_GET_ID,(void*)tmpstr);
NRF_LOG_INFO("=== %s NET CONF ===\r\n",(char*)tmpstr);
NRF_LOG_INFO("MAC: %02X:%02X:%02X:%02X:%02X:%02X\r\n",gWIZNETINFO.mac[0],gWIZNETINFO.mac[1],gWIZNETINFO.mac[2],
gWIZNETINFO.mac[3],gWIZNETINFO.mac[4],gWIZNETINFO.mac[5]);
NRF_LOG_INFO("SIP: %d.%d.%d.%d\r\n", gWIZNETINFO.ip[0],gWIZNETINFO.ip[1],gWIZNETINFO.ip[2],gWIZNETINFO.ip[3]);
NRF_LOG_INFO("GAR: %d.%d.%d.%d\r\n", gWIZNETINFO.gw[0],gWIZNETINFO.gw[1],gWIZNETINFO.gw[2],gWIZNETINFO.gw[3]);
NRF_LOG_INFO("SUB: %d.%d.%d.%d\r\n", gWIZNETINFO.sn[0],gWIZNETINFO.sn[1],gWIZNETINFO.sn[2],gWIZNETINFO.sn[3]);
NRF_LOG_INFO("DNS: %d.%d.%d.%d\r\n", gWIZNETINFO.dns[0],gWIZNETINFO.dns[1],gWIZNETINFO.dns[2],gWIZNETINFO.dns[3]);
NRF_LOG_INFO("======================\r\n");
}
void network_init(void)
{
ctlnetwork(CN_SET_NETINFO, (void*)&gWIZNETINFO);
}