Search found 2 matches

by boondaburrah
Mon Jan 03, 2022 11:14 am
Forum: Hardware
Topic: Yet another 65C02 SBC
Replies: 14
Views: 3006

Re: Yet another 65C02 SBC

I had to read the FT245R datasheet multiple times regarding the strobe pins. Both are described as taking their action (either putting data from the FIFO onto the bus or taking the contents of the bus and putting them into the FIFO) when the RD# or WR pin transitions from high to low, even though ...
by boondaburrah
Fri Oct 08, 2021 3:17 am
Forum: Newbies
Topic: What UART should i use for my first computer?
Replies: 27
Views: 6478

Re: What UART should i use for my first computer?

I'm using a 74HC245 as a separate I/O device to put the status lines on the data bus whenever I select it and PHI2 goes high. Of course this will cause a collision if you ever try to write to the status lines, but the answer to that is: don't. Seems fine for a first build but I'll probably use a ...