20210412_190147.jpg (152.62 KiB) Viewed 6694 times
Re: TF CD32 Riser Revision 2 Specification, known issues and licence
Posted: 13 Apr 2021 20:07
by amimjf
8 Bit Dreams wrote: 13 Apr 2021 18:34
These are sold out already,
That was quick, hopefully they build again.
Re: TF CD32 Riser Revision 2 Specification, known issues and licence
Posted: 13 Apr 2021 20:52
by 8 Bit Dreams
There will be a batch of bare pcbs available soon,
JEDs for MACH Chips are also available, so highly likely You'll be able to build one before Prelude pops up.🤔
Re: TF CD32 Riser Revision 2 Specification, known issues and licence
Posted: 17 Apr 2021 21:53
by arkadiusz.makarenko
As far as I understand issue with jumping mouse affects certain CD32 boards only.
Only mouse is affected, RTC is handled correctly, and it looks like only counters are affected.
Same set of TF330 works fine on one machine, but fails few others.
As far as I understand stm32 is doing its job correctly, and any changes to extend timings on each stage of process doesn't fix issue.
Therefore I assume issue is with cpld logic.
@terriblefire
If you had some time and/or will, could you have a look at https://github.com/arkadiuszmakarenko/T ... main_top.v
and look for obvious mistakes there? Or hints what I could try? Effect is like override wasn't taking fully effect? Like PUNT was ignored every so often?
Re: TF CD32 Riser Revision 2 Specification, known issues and licence
Posted: 17 Apr 2021 22:43
by terriblefire
arkadiusz.makarenko wrote: 17 Apr 2021 21:53
As far as I understand issue with jumping mouse affects certain CD32 boards only.
Only mouse is affected, RTC is handled correctly, and it looks like only counters are affected.
Same set of TF330 works fine on one machine, but fails few others.
As far as I understand stm32 is doing its job correctly, and any changes to extend timings on each stage of process doesn't fix issue.
Therefore I assume issue is with cpld logic.
@terriblefire
If you had some time and/or will, could you have a look at https://github.com/arkadiuszmakarenko/T ... main_top.v
and look for obvious mistakes there? Or hints what I could try? Effect is like override wasn't taking fully effect? Like PUNT was ignored every so often?
only issue i see is that things are combinatorial logic when possibly clocked logic might be better
arkadiusz.makarenko wrote: 17 Apr 2021 21:53
As far as I understand issue with jumping mouse affects certain CD32 boards only.
Can you tell which CD32 boards could possibly be affected?
both are the same revision rev3
I thought it was akiko's fault because one is rev-0 and the other is rev-A and for me it works on rev-A
after talking to alenppc we found that this is not it
because alenppc has some cd32 and rev0 and rev-A and it doesn't work on any of them