dml attempts a Raven

[dml]

Thanks everyone esp. @agranlund for nudging me in the necessary directions. This is the part I was dreading, with all the single-points-of-failure from PCs/Windows/drivers, old software and dead-linked support files through suspect wheebay programming boards to made PCBs...

Looking forward to the next part where I hopefully don't cook a 68060!

[PhilC]

That's great to hear it worked @dml. Good luck with the 68060.

[dml]

Thanks PhilC.


In case anyone cares, I'm using this kind of programmer:

https://www.ebay.co.uk/itm/205129284503


The 'good' ATF came from Digikey ...eh I meant Mouser. Digikey were out of stock and won't likely be getting any new ones.

The 'bad' ATF came from the IC graveyard that is ebay...

[agranlund]

"ATF1508AS devices can also be programmed using standard third-party programmers

Where did you find that info? Has the algorithm been cracked? At least when I started using the ATF series you had to have the proper Atmel programmer as nothing else would program them.

In the datasheet on page8.
But it makes no mention of which third party programmers has licensed the algorithm so it's quite possible there are none
https://ww1.microchip.com/downloads/en/ ... oc0784.pdf

[agranlund]

Nice to hear it worked!

Hope it doesn't explode the 68060


Great tip about the programmer, that's a lot cheaper than getting hold of an ATDH1150USB from the usual sources!

[agranlund]

The 'good' ATF came from Digikey ...eh I meant Mouser. Digikey were out of stock and won't likely be getting any new ones.

Yeah these PLCC variants are going to get scarce now that they are end of life :/
Last time I checked, Microchip themselves had tons in stock and were selling them in any quantity so that's an option if Mouser decides to stop re-stocking them.

[dml]

In case anyone is struggling to get the BSDL files for ATF1508 from the MicroChip site, the correct link is:

https://www.microchip.com/mymicrochip/f ... e=en593086

The 1508 link they actually provide points at the 1504 archive

[dml]

Have inserted a LC060 for now with some shims added below in the hope of being able to remove it again after some tests.

I'm looking at the serial ports now, trying to understand from the manual which one is used to debug serial output and use the monitor.

There's a high speed UART on COM1, which I think is the one on the lower left of the 25/9/9 connector? And an atari serial on COM2, lower right?

Which one should I use for watching activity while bringing up the board?


Oh and @agranlund I'm quite happy with progress already this morning - don't feel compelled to hang around answering my n00by questions like an online support bot it is the weekend after all!

[agranlund]

Have inserted a LC060 for now with some shims added below in the hope of being able to remove it again after some tests.

I'm looking at the serial ports now, trying to understand from the manual which one is used to debug serial output and use the monitor.

There's a high speed UART on COM1, which I think is the one on the lower left of the 25/9/9 connector? And an atari serial on COM2, lower right?

Which one should I use for watching activity while bringing up the board?

Correct, use the lower-left high speed one.
115200 baud, 8 data bits, no parity, 1 stop bit.

It will try to print something almost immediately on boot.

[agranlund]

Oh and @agranlund I'm quite happy with progress already this morning - don't feel compelled to hang around answering my n00by questions like an online support bot it is the weekend after all!

Yeah I'm off now for dog training the rest of the day