Debug reminder:

1, the IP address of the computer to a network segment and module such as IP module 192.168.1.2, IP computer set: 192.168.1.3; 192.168.1 is the 3 section;

2, cross the network cable connected to the mouth of the computer network module and mouth; (that is, the cable network 1 3,2 cross, and then do not understand that there are pictures Baidu);

3, the module and the MCU connection should pay attention to the connection of each line is reliable (the surface is not even connected to the good);

4, and the MCU port IO to confirm that is right;

5, the program recompile, download, confirm whether to download! STM32 and 51 IO

Wiring instructions:

############STM32 connection ##########

STM32f103VBT6 ENC28J60 module or other stm32

PC10----------- RESET

PC12--------- CS //PC12 pull-up output mode

//SPI1-

PA5----------- SCK / / output mode

PA6----------- SO / / input mode

PA7----------- SI / / output mode

######51 microcontroller ########### //---------------------------------

Change IP address and MAC address in uipopt.h

192.168.1.100

//--------------------------------- port configuration in spi.h.

STC12C5A60S2 DIP OSC:18.432Msbit CSN = P1^0; / / 28J60-- CS (SS)

Sbit SIN = P1^1; / / MOSI

Sbit SON = P1^2; / / MISO

Sbit SCKN = P1^3; / / SCK

Sbit RSTN = P1^4; / / RST

Sbit INTN = P3^3; / / INT