TF1260 programming - questions & discussion

News & updates for the upcoming 68060 accelerator

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supaduper
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Re: TF1260 programming - questions & discussion

Post by supaduper » Mon Sep 13, 2021 2:11 pm

matt020 wrote:
Mon Sep 13, 2021 1:59 pm
Ok, and conversely, if the TF is in the Amiga, and the Amiga is powered on, the 3.3v line can be left out and not connected?
Yes bud

idc
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Re: TF1260 programming - questions & discussion

Post by idc » Tue Sep 14, 2021 9:23 pm

Confirming that I was unable to flash my TF1260 with the beta firmware using a first gen Raspberry Pi Model B (unable to detect the JTAG chain).

It worked flawlessly using a Raspberry Pi 3B+ which I ordered from Amazon.

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Re: TF1260 programming - questions & discussion

Post by terriblefire » Tue Sep 14, 2021 10:15 pm

Its highly likely that you had the B wired wrong. Almost every single revision of the Pi has different hat pinouts and this is why i dont show a guide on how to do this. Because it requires somone to take their time and match up their Pi with the correct pinout. It would be incredibly easy to blow up a Pi or a TF1260 by not paying attention.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."

idc
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Re: TF1260 programming - questions & discussion

Post by idc » Wed Sep 15, 2021 8:43 am

I verified 3v3, ground, GPIO4, GPIO17, GPIO27, GPIO22. All the same between the original Pi B and the Pi 3B+.

I’m not infallible, of course; but I moved my loom over, and the SD card (supaduper’s image) and the JTAG chain was detected easily on the Pi 3B+. As far as I’m aware, all 40-pin header Raspberry Pi devices should be consistent.

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