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Re: TF534 Not run
Posted: 12 Aug 2020 07:28
by dragmar
The card works fine. It operates at a frequency of 33-50 MHz without FPU.
Failed to boot from FPU: x yellow screen
Now for permanent mounting on the ATARI 520ST.
What (* .jed) CPLD batch for ATARI?
Re: TF534 Not run
Posted: 13 Aug 2020 17:59
by 8 Bit Dreams
grab @agranlund's FW, it works for sure
Re: TF534 Not run
Posted: 13 Aug 2020 18:14
by terriblefire
dragmar wrote: 12 Aug 2020 07:28
The card works fine. It operates at a frequency of 33-50 MHz without FPU.
Failed to boot from FPU: x yellow screen
Bad FPU then.. or one that cant go fast enough.
Re: TF534 Not run
Posted: 14 Aug 2020 13:10
by alenppc
Don't run it at 50. The alliance 55ns ram can't cope with it. You should not go above 40.
Re: TF534 Not run
Posted: 14 Aug 2020 17:51
by PaulJ_2.0
If you want ram to run reliably at 50MHz, use: CY62158ELL-45ZSX
https://www.reichelt.de/sram-8-mb-1-m-x ... 46557.html
Re: TF534 Not run
Posted: 14 Aug 2020 19:43
by dragmar
@terriblefire @alenppc
i changed the oscillator to 33mhz. FPU has started and runs stably. Tests done with Amiga 500. THX
@8 Bit Dreams
I have uploaded the files from @agranlund
Atari starts up. But Ultrasatan doesn't work with TOS 2.06. Atari hangs when starting reading the SD card.
Card without FPU
Try EMUTOS by @ agranlund today