[vcf-midatlantic] Robots and Relays and Commodore
mcguire at neurotica.com
Wed May 25 14:54:44 EDT 2016
On 05/25/2016 01:47 PM, Chris Fala via vcf-midatlantic wrote:
>>> Would this help?
>> that one has 6 outputs
>> you need one with 10 outputs
> Thought the C64 user port only had an 8-bit port. Where are the other two
> connected? The VIC has a few of the joystick port connected to the user
> port, but not sure what other outputs you can get out of the C64.
There's a zillion different ways to demultiplex parallel I/O lines. A
degenerate case (but a valid one) is an I2C I/O expander, some of which
can give you 32 I/O lines from just two.
Dave McGuire, AK4HZ
New Kensington, PA
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