Terrible Fire Accelerators

[solidcore]

Will start building the tf530 this weekend as I now have in my possession some 030's to play with.

@Plasmab regarding tf530/spi_alpha branch, if any changes have been made locally please push & commit as I'll be going down that path once the tf530 is up and running. I've been following your videos regarding the fs-uae and wondering a fair bit if you've done any testing on the tf530 hardware itself yet or primarily just in fs-uae right now?

[plasmab]

Originally Posted by solidcore

Will start building the tf530 this weekend as I now have in my possession some 030's to play with.

@Plasmab regarding tf530/spi_alpha branch, if any changes have been made locally please push & commit as I'll be going down that path once the tf530 is up and running. I've been following your videos regarding the fs-uae and wondering a fair bit if you've done any testing on the tf530 hardware itself yet or primarily just in fs-uae right now?

Its been FS-UAE for now. I proved the SPI transaction was working on the scope and i could reset the card and put it in SPI mode.. after that I moved to getting the driver working in an emulated setup.

I may cherry pick commits but please stick to my coding standards verilog wise and i'll accept changes no bother. You will struggle to change the verilog and build it in ISE because the CPLD is full. So use the makefiles.

[kgc210]

I am trying to diagnose the RAM a bit more on the other REV 3 board.
Can you bring the RAM up bit by bit or do you have to have all 4 on the board?

I had a look at the schematic and noticed Chip Select 0 was IC9 and 1 was IC8 etc
So I populated IC9 and got a white screen so did IC8 as well and still got a white screen. Removed 9 and got a white screen.

If you can just have two RAM Chips would they be like that or would say IC9 and IC7 be paired up?

[plasmab]

Originally Posted by kgc210

I am trying to diagnose the RAM a bit more on the other REV 3 board.
Can you bring the RAM up bit by bit or do you have to have all 4 on the board?

I had a look at the schematic and noticed Chip Select 0 was IC9 and 1 was IC8 etc
So I populated IC9 and got a white screen so did IC8 as well and still got a white screen. Removed 9 and got a white screen.

If you can just have two RAM Chips would they be like that or would say IC9 and IC7 be paired up?

DiagROM!!! Autoconfig the ram then test 0x200000 to 0x400000... then you can tell which ram is dead by which 8 bit block is red. I’ve done this on stream

[kgc210]

Well I have done both a Fast and Slow scan on the memory.
Get same results on both REV 3 board.

When DiagROM loads it states 36MB of Fast RAM

When you test 200000 to 400000 it shows no working blocks.
Also if you test Chip RAM it fails on that as well.

[8 Bit Dreams]

Originally Posted by kgc210

..DiagROM loads it states 36MB of Fast RAM

When you test 200000 to 400000 it shows no working blocks.
Also if you test Chip RAM it fails on that as well.

these ram chips can be anything in the world, only not that what You need.. I was thinkering to get ISSI, however, alen has removed his approvement that these are working now, so will continue to use Alliance..Built next card with 32Mhz oszillator today, works like a charm on A500, also boots on A2000 without graphic issue, however, my Zorro II card is not recognized need to check more, before i do any suggestions

[alenppc]

No, no, it wasn't me - ISSI works fine now on rev 2, with the RC firmware. You can use it freely. Haven't tested it on rev3 yet.
The only Issue the RC firmware has right now is the 1.5 MB slow-fast ram one. Otherwise almost perfect.

[kgc210]

Well new RAM and a few more CPLD's has been ordered from Digi-Key

[redhawk668]

Ok, I’ve built myself a TF530 and have some problems with it. I have a revision 3 board. I ordered the boards from DirtyPCB’s with the logo on it. I soldered it all up and both CPLD came nicely up and I could program them. Soldered on a 25 mhz oscillator and it boots, so far so good. My Amiga 500 is a Rev. 6A, which has been modified for 1 mb of chipram. I have 1 mb on the board and no trapdoor expansion. JP2 and JP7A are modified.

The problem:

My processor runs at 10.60 mhz and no memory is found. I can’t seem to find what the problem is.

All resistor and resistor packs are 1k ohm and I am using Alliance SRAM's. What I have done:

Checked for continuity on the address lines and data lines, all connections are connected. Checked for shorts or solder splashes, resoldered all of the RAM chips. Checked under the microscope, no shorts. I am running the RC2 firmware.

What is the problem with this board? It should get a 25 mhz clock and 2 mb of fastram.

[plasmab]

Did you autoconfig before running the test? (Ram menu and then the autoconfig option 9)

[plasmab]

Originally Posted by redhawk668

Ok, I’ve built myself a TF530 and have some problems with it. I have a revision 3 board. I ordered the boards from DirtyPCB’s with the logo on it. I soldered it all up and both CPLD came nicely up and I could program them. Soldered on a 25 mhz oscillator and it boots, so far so good. My Amiga 500 is a Rev. 6A, which has been modified for 1 mb of chipram. I have 1 mb on the board and no trapdoor expansion. JP2 and JP7A are modified.

The problem:

My processor runs at 10.60 mhz and no memory is found. I can’t seem to find what the problem is.

All resistor and resistor packs are 1k ohm and I am using Alliance SRAM's. What I have done:

Checked for continuity on the address lines and data lines, all connections are connected. Checked for shorts or solder splashes, resoldered all of the RAM chips. Checked under the microscope, no shorts. I am running the RC2 firmware.

What is the problem with this board? It should get a 25 mhz clock and 2 mb of fastram.

The cpu speed is fine. 10mhz is what you see when the fast ram isn’t working. Does anything appear in the expansion section of the early start menu?

[kgc210]

Originally Posted by plasmab

Did you autoconfig before running the test? (Ram menu and then the autoconfig option 9)

Was that for me or redhawk668?

[plasmab]

Originally Posted by kgc210

Was that for me or redhawk668?

You.. unless you autoconfig the ram won’t exist.

[kgc210]

Nothing shows up in there.

[plasmab]

Originally Posted by kgc210

Nothing shows up in there.

Reprogram the ram cpld without restarting the machine and try again.

[redhawk668]

Nothing shows up in early startup menu, in DiagROM nothing shows up in autoconfig. I am running Kickstart 3.1 on my Amiga 500 and resistor packs rp106 and rp107 are soldered on.

[plasmab]

Originally Posted by redhawk668

Nothing shows up in early startup menu, in DiagROM nothing shows up in autoconfig. I am running Kickstart 3.1 on my Amiga 500 and resistor packs rp106 and rp107 are soldered on.

The issue is the ram cpld somehow. Nothing to do with anything else. R1 being too high might be the issue otherwise it’s not even able to perform a bus cycle to the autoconfig.

[kgc210]

One of my REV 3 board shows nothing in the AutoConfig regardless if you program it or not while powered.

The other one seems to on occasion display RAM and an IO space.
Although if you test the RAM it fails, if you go back into the AutoConfig bit it displays nothing again.
If you power cycle you get the RAM and IO space again in AutoConfig.

Edit

Don't know if it helps if I press the left mouse button down on DiagRom forcing it the use Fast RAM I get the seccond pic. This is on the board that initially Shows ZII RAM and IO.
Both boards still show as 36MB earlier in the boot process though.

[redhawk668]

Victory at last! My TF530 is running! I did resolder the RAM yesterday, but then I thought why not do some resoldering on the RAM CPLD... Eureka! It solved the problem. RAM autoconfig is working and the RAM is being detected now.

Must have been a dud solder joint. It's sorted out now. My TF530 is alive. Now, get an IDE to CF adapter and test the IDE and put a 68000 relocator in it, so the case can be closed.

But right now I'm a happy geek .



Some bodge wires on the oscillator, when trying to find the problem I desoldered and soldered the oscillator too many times... Lifted a pad and a trace , so I had to solder wires to the oscillator and connect them up.. But hey, it works!

[plasmab]

@kgc210 if your not even seeing the autoconfig then stop arsing about with the ram chips. It’s the ram cpld.