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TF536 Rev 2 Design Complete (all gone)

68030 + SDRAM + IDE

Moderators: terriblefire, Terriblefire Moderator

terriblefire
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Re: TF536 Rev 2 Design Complete (all gone)

Post by terriblefire »

alenppc wrote: Fri May 01, 2020 5:41 pm My board hasn't arrived yet...
Yikes i hope its not gone missing.
———
"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."
alenppc
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Re: TF536 Rev 2 Design Complete (all gone)

Post by alenppc »

terriblefire wrote: Fri May 01, 2020 5:48 pm
alenppc wrote: Fri May 01, 2020 5:41 pm 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.
terriblefire
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Re: TF536 Rev 2 Design Complete (all gone)

Post by terriblefire »

alenppc wrote: Fri May 01, 2020 6:19 pm 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.
———
"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."
Danoo
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Re: TF536 Rev 2 Design Complete (all gone)

Post by Danoo »

alenppc wrote: Fri May 01, 2020 5:41 pm 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 ;)
Life is really simple, but we insist on making it complicated - Confucius
PaulJ_2.0
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Re: TF536 Rev 2 Design Complete (all gone)

Post by PaulJ_2.0 »

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

Thanks Stephen :)
LADmachining
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Re: TF536 Rev 2 Design Complete (all gone)

Post by LADmachining »

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!
terriblefire
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Re: TF536 Rev 2 Design Complete (all gone)

Post by terriblefire »

LADmachining wrote: Sun May 03, 2020 10:16 am 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.
———
"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."
LADmachining
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Joined: Sun Mar 24, 2019 2:19 pm

Re: TF536 Rev 2 Design Complete (all gone)

Post by LADmachining »

Don't blame you - deserved after completing the Harlequin build!
terriblefire
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Re: TF536 Rev 2 Design Complete (all gone)

Post by terriblefire »

OBV file
tf536.kicad_pcb.zip
(6.88 KiB) Downloaded 205 times
———
"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."
LADmachining
Posts: 41
Joined: Sun Mar 24, 2019 2:19 pm

Re: TF536 Rev 2 Design Complete (all gone)

Post by LADmachining »

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

Anthony
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