I've released a new firmware. This fixes a number of problems:-
Improved AltRAM controller now should be stable on more platforms
The 'slow release' of DTACK on pre-STE YM chips should now be handled
Blitter access to AltRAM now allowed again (testing feedback solicited)
TOS2.06 decoding now available on Test Point 1
LED now lights on AltRAM access
May be booted into 8MHz mode by connecting TP3 to GND via 220Ohm resistor at reset
The compromise to all the above is that write access is slightly slower in this version. I think that's a fair trade off for an early developmental board.
Also: there is no manual yet. Anyone fancy starting one?
BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2 FrontBench The Frontier: Elite 2 intro as a benchmark
Steve wrote: ↑Tue Jun 21, 2022 9:50 am
@exxos sorry to summon would you think this may be for the CE line? (BW hasn't been active for a few weeks)
Yeah TP1 is CE on the H5 or dualtos boards etc.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase. viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.