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Table of Contents

Commodore plus/4

plus4.jpg

The Commodore is a home computer from the 1980s.

The +4 has a number of interfaces which can be used to connect to the outside world. These include a serial UART, 8-bit parallel port, cassette port and a CBM IEC serial bus.

Video output includes composite video which can feed, for example, a Hauppauge HVR900H capture board in Linux (as shown in the photo). In Linux this setup has low latency and is very usable, this may not be the case elsewhere.

Pinout

User port
 1   2   3   4   5   6   7   8   9   10  11  12
GND 5V  RES P2  P3  P4  P5  RxC ATN  9V  9V GND

GND P0  RxD RTS DTR P7  DCD P6  P1  DSR TxD GND
 A   B   C   D   E   F   H   J   K   L   M   N
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