w5100+mega64 extended network and serial port transparent transmission
S2E
7
Components
Hardware components
WIZnet - W5100
x 1
Project description
The mcu adopts the avr series mega64 of at company, and the network chip adopts the w5100 of South Korea's wiznet which contains the network protocol. The mega64 uses a 7.3728mhz crystal as an external clock. Its usart0 is extended to rs485 usart1 extended to rs232 Use spi interface to connect between w5100 and mega64. configured as100m bandwidth. The power supply part uses mc34063 to provide system 3.3v power supply. The hardware scheme block diagram is as follows: Both drawings can be used normally The picture below shows the test completed circuit board Attachments include: The schematic…
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