Vermes
Advanced Member level 4
It is a module which can be used for communication with different devices. Ethernet provides not only AVR with signal conversion form 3,3V to 5V, but also something like network adapter for processors.
The module is based on a popular chip – ENC28J60 from Microchip. All the necessary signals for communication with AVR processors are derived on the HEADER connector.
Module system was based on: LINK.
The following changes were made to the original project:
- signal conversion to 5V (because ENC is powered by 3,3V)
- resignation from the ENC clock by CLKOUT signal
Conversion, of course, was made according to the manufacturer's application note.
Prototype board was made by thermal transfer method.
Assembled system operates without any problems. Green diode light immediately, indicating that there is a LINK, and the yellow diode blinks from time to time.
Pictures:
Diode indicating 3,3V voltage behind the stabilizer:
Schematic:
Description for the PCB provides readable names of terminals on HEADERS:
Link to original thread (useful attachment) – ETHERNET - "karta sieciowa" SPI dla AVR enc28j60
