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Chip board ENC28J60-I/SO.
the board 25MHZ crystal.
the network interface board HR911105A.
3.3 V power supply pin.
Size:5.9cm x 3.5cm - 2.32inch x 1.38inch.
Debug reminder:
- 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;
- 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);
- 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);
- And the MCU port IO to confirm that is right;
- The program recompile, download, confirm whether to download! STM32 and 51 IO
