Search found 2 matches
- Wed Aug 20, 2014 1:16 am
- Forum: Commodore 8 Bit Programming
- Topic: SCC2691 uart or acia
- Replies: 2
- Views: 21491
Re: SCC2691 uart or acia
Ok its a timing problem. The 2691 calls for RDN to go low with CEN low if I do both at the same time it doesn't work. I asked for a quote from some obsolete parts places for going back to R6551. The one quote back from 4STAR $20. With all this work for obsolete parts I think I will just go with some...
- Fri Aug 15, 2014 1:54 am
- Forum: Commodore 8 Bit Programming
- Topic: SCC2691 uart or acia
- Replies: 2
- Views: 21491
SCC2691 uart or acia
Has anyone got one of these wired up and programed on a C64 or C128?
I can enable chip and write(WRN), but the read enable(RDN) is not simple thing to get working.
I am trying to connect directly to buss. I don't want to go thru an interface chip to talk to this interface chip.
thank you
I can enable chip and write(WRN), but the read enable(RDN) is not simple thing to get working.
I am trying to connect directly to buss. I don't want to go thru an interface chip to talk to this interface chip.
thank you