Terrible Fire Accelerators

[8 Bit Dreams]

Are You also assembled TF520? Cool!
Both clocks doesn't work for me, unfortunately
I saw the right pin goes to oscillator, just wanted to be sure..

[plasmab]

DiagROM please! There are too many possibilities until DiagROM has been tried. Like thousands

[super_adam]

Originally Posted by 8 Bit Dreams

Are You also assembled TF520? Cool!
Both clocks doesn't work for me, unfortunately
I saw the right pin goes to oscillator, just wanted to be sure..

Are both clocks giving you same results/blinks? My TF520 blinks and reboots only when Amiga clock is selected. With 20Mhz oscillator power led stays dim. I was wondering why and recently I found an answer, my oscillators are giving 3.3V amplitude output and this seems to be too little for 68020. So my next steps are:
use DiagROM to eventually resolve issue with Amiga clock and then replace osc with a proper 5V one. I'm testing it with both plastic and ceramic CPUs on A500 rev 6a mobo.
I wonder if simple usb to serial converter with only rxd, txd and gnd is enough to connect amiga and pc. Does anybody know the answer?

[super_adam]

Originally Posted by plasmab

DiagROM please! There are too many possibilities until DiagROM has been tried. Like thousands

Yep, waiting on Chiniese guys to deliver some eproms. After that probably i'll have some questions for you. It looks like you are still supporting TF520, which is cool!

[plasmab]

Originally Posted by super_adam

Yep, waiting on Chiniese guys to deliver some eproms. After that probably i'll have some questions for you. It looks like you are still supporting TF520, which is cool!

Very roughly.

[super_adam]

Originally Posted by plasmab

Very roughly.

No problem with that.

[8 Bit Dreams]

Oh deamn...i am so inattentive... have soldered 7ns xilinx on my TF520...
Have them here for the C64 PLA replacements..
Will be back soon

[PR77]

Originally Posted by 8 Bit Dreams

Oh deamn...i am so inattentive... have soldered 7ns xilinx on my TF520...
Have them here for the C64 PLA replacements..
Will be back soon

@8 Bit Dreams, purely out of interest, why are you building a TF520?

[8 Bit Dreams]

Originally Posted by PR77

@8 Bit Dreams, purely out of interest, why are you building a TF520?

Hope it will work in pair with Kipper2k/MKL's 8MB expansion, next is to test it in CDTV. It was also a request from one user.. i'm just having fun soldering different things, it makes me happy if it works

[PR77]

Originally Posted by 8 Bit Dreams

Hope it will work in pair with Kipper2k/MKL's 8MB expansion, next is to test it in CDTV. It was also a request from one user.. i'm just having fun soldering different things, it makes me happy if it works

Well best of luck! Look forward to knowing how you get along- I'd be especially curious about the speed sysinfo reports.

[8 Bit Dreams]

Originally Posted by PR77

Well best of luck! Look forward to knowing how you get along- I'd be especially curious about the speed sysinfo reports.

i know, it won't be the fastest, but it will give a proper "Quit" funktion for WHDLoad at least..

[PR77]

Originally Posted by 8 Bit Dreams

i know, it won't be the fastest, but it will give a proper "Quit" funktion for WHDLoad at least..

The 020 is still an impressive beast, I have bought a couple of the RP16 with 1E mask so they should be good for 32MHz (ebay kleinanzeigen 15€ für both). I'm more interested in the fact that /DTACK (/DSACK in 020 domain) will not be asserted faster. I am curious to know the speed with the "standard" GARY DTACK timing. On my 68SEC000 at 14MHz > 40MHz I get nothing more that about 1.4MIPs unless I use a fast /DTACK (INT_CYCLE).

[8 Bit Dreams]

Hmm..
Seems i will need a little help..
swapped out cpld to 10ns one, but card don't want to boot... I'm getting yellow screen.. what is J7 for? I don't need to set any other jumpers except CLK, right?


- - - - Edit - - - -
DiagROM start to boot, but hangs ob blue screen

[TimT]

Trying to get the TF530 to work on the Amiga 1000, has rom mod. it will not load workbench 2/3 always guru meditation error 8000 0005 task 00011628.

workbench 1.3 works fine. loaded up maniac mansion and that worked. everything is set at 25mhz right now. 1k on R1-R3. any idea's? soldering should be fine. Ram chip is blank. Only firmware that works is the DEV version
the other versions give a grey screen at boot

[TimT]

just found out workbench 2.0 will work, 2.1 and up is a no go, I am using a 2.4 rom. Do I need the ram chips soldered for IDE support? Thanks

[graffias79]

I think IDE requires 2.05 ROMs

[TimT]

Originally Posted by graffias79

I think IDE requires 2.05 ROMs

Thank you for the info...

[8 Bit Dreams]

Originally Posted by TimT

Thank you for the info...

need KS 37.300>>>>>
run early boot menu (press both mouse buttons on start) to see if DH0 is present

[TimT]

got the 3.1 rom installed, still no workbench above 2.0. will I need to install the ram and program the cpld to get the IDE working? did not want to install the ram just yet.

[plasmab]

Originally Posted by TimT

got the 3.1 rom installed, still no workbench above 2.0. will I need to install the ram and program the cpld to get the IDE working? did not want to install the ram just yet.

Yes. Gayle emulation is in the RAM CPLD.