TF536 Rev 2 Design Complete (all gone)

Post by **terriblefire** » 01 May 2020 17:48

alenppc wrote: 01 May 2020 17:41 My board hasn't arrived yet...

Yikes i hope its not gone missing.

Post by **alenppc** » 01 May 2020 18:19

terriblefire wrote: 01 May 2020 17:48
alenppc wrote: 01 May 2020 17:41 My board hasn't arrived yet...
Yikes i hope its not gone missing.

Nah, it's the COVID. The mail is reaaaally slow now, in fact I have now switched to shipping everything via UPS.

Post by **terriblefire** » 01 May 2020 18:23

alenppc wrote: 01 May 2020 18:19 Nah, it's the COVID. The mail is reaaaally slow now, in fact I have now switched to shipping everything via UPS.

Mail here is not affected. Getting stuff from Spain in two days.

Danoo · Post by **Danoo** » 01 May 2020 23:46

alenppc wrote: 01 May 2020 17:41 My board hasn't arrived yet...

Yea mate covid mail, it is on the slow boat, had to wait near on 6 weeks for some memory to reach OZ from the UK, hopefully your card is on a speed boat to Canada ;)

PaulJ_2.0 · Post by **PaulJ_2.0** » 02 May 2020 13:17

I can confirm buffered ide works fine with pin1 lifted and tied to pin2 on IC6.

Thanks Stephen :)

LADmachining · Post by **LADmachining** » 03 May 2020 10:16

I seem to have an open circuit in the board as I have no connection between the STERM CPU pin and any pin on the CPLD. Pins adjacent to STERM such as BERR and DSACK1 do find their way back to the CPLD.

On unpacking the board when received, it had a scuff in the solder mask in this area and between the 68K pads. Checking over with the microscope before assembly did not reveal any open circuits, but I guess there was something that was missed.

Could a schematic or boardview file be made available to assist with tracking down the fault? Thanks!

Post by **terriblefire** » 03 May 2020 15:53

LADmachining wrote: 03 May 2020 10:16 Could a schematic or boardview file be made available to assist with tracking down the fault? Thanks!

I'll do one for you now.. need a beer first.

LADmachining · Post by **LADmachining** » 03 May 2020 16:19

Don't blame you - deserved after completing the Harlequin build!

Post by **terriblefire** » 03 May 2020 16:33

OBV file

tf536.kicad_pcb.zip

LADmachining · Post by **LADmachining** » 04 May 2020 13:10

Thanks. Will dig into the board a bit later and hopefully get to the bottom of the issue.

Anthony

exxos's Atari, Amiga & retro forum

TF536 Rev 2 Design Complete (all gone)

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Re: TF536 Rev 2 Design Complete (all gone)

Re: TF536 Rev 2 Design Complete (all gone)

Re: TF536 Rev 2 Design Complete (all gone)

Re: TF536 Rev 2 Design Complete (all gone)

Re: TF536 Rev 2 Design Complete (all gone)

Re: TF536 Rev 2 Design Complete (all gone)

Re: TF536 Rev 2 Design Complete (all gone)

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