Search found 311 matches

by rpineau
Tue Nov 13, 2018 11:42 pm
Forum: ST 16MHz V2.X SERIES BOOSTERS
Topic: V2.5 BOOSTER CURRENT PROTOTYPE STATUS (SEC BOOSTER)
Replies: 185
Views: 16358

Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS (SEC BOOSTER)

I don't see the SRAM[1..4] signals on the CPLD
by rpineau
Mon Nov 12, 2018 11:06 pm
Forum: Terriblefire's channel
Topic: Terriblefire Accelerators
Replies: 88
Views: 1960

Re: Terriblefire Accelerators

This is all very interesting. On our 68020board I did put 100nF on all power pins as close as possible to them (1206 packages). This does make things harder to route (both for me and the auto router). I might have to reconsider the number of caps and their placement to lower the count and do a you d...
by rpineau
Sun Nov 11, 2018 7:16 pm
Forum: ELECTRONICS
Topic: Logic Analyser on the Cheap
Replies: 11
Views: 173

Re: Logic Analyser on the Cheap

I used both a Logic 8 and a Logic Pro 16 from Saleae. I did test a bunch of cheap ones (up to 32 channel like exxos, we had the same one) just to see them fail miserably and not work as expected. I think buying the Saleae Logic Pro 16 was the best thing I did to help me debug the 68020 board. If you...
by rpineau
Thu Nov 08, 2018 9:15 pm
Forum: Terriblefire's channel
Topic: Terriblefire Accelerators
Replies: 88
Views: 1960

Re: Terriblefire Accelerators

Yep, with CDIS jumpered if it still fails it obviously not a cache issue. The floppy uses the DMA so may be a BR/BG/BGACK issue with retaking the bus to quickly with DMA data lingering on the bus. On our 68020 board we resync these (I assume you do the same) to the 8MHz clock. If I think of somethin...
by rpineau
Thu Nov 08, 2018 7:06 pm
Forum: Terriblefire's channel
Topic: Terriblefire Accelerators
Replies: 88
Views: 1960

Re: Terriblefire Accelerators

IT's probably a cache issue. You should only allow caching for the RAM, TOS and eventually fastRam (AltRam). This is the VHDL from the test we did on the 68020 board when we put a 68030 on it (via a small adapter) : -- 68030 experimentation CIIN <= '1' when (Address_bus >= x"00E00000" and Address_bu...
by rpineau
Thu Nov 08, 2018 5:18 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: Terriblefire's new forum channel
Replies: 9
Views: 235

Re: Terriblefire's new forum channel

This is great news.
:welcomewave: :cheers: :bravo:

Rodolphe
by rpineau
Sun Nov 04, 2018 7:51 pm
Forum: TT
Topic: Atari TT030 Revision Guide
Replies: 10
Views: 465

Re: Atari TT030 Revision Guide

:thanksyellow: :bravo: :cheers:
by rpineau
Wed Oct 31, 2018 6:18 pm
Forum: STF REMAKE PROJECT
Topic: Bigger isn't always better
Replies: 16
Views: 236

Re: Bigger isn't always better

Once we have a stable version of the board and everything is open sourced we can almost drop it in on the schematics as it interfaces directly in place of the 68000. We also have an expansion port on the board too .. to be discussed when the time comes.
by rpineau
Wed Oct 31, 2018 5:47 pm
Forum: STF REMAKE PROJECT
Topic: Bigger isn't always better
Replies: 16
Views: 236

Re: Bigger isn't always better

STF-Remake + 68030@50MHz + 32 bit TOS + sh*tload of AtlRam :D