Arek's TF534 build
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- arkadiusz.makarenko
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Arek's TF534 build
My first build. It took me 6h.
Tomorrow I am planning to program it, and hopefully start Diagrom.
Forgot to other 0.1 uF caps.
There is no way that someone could build it without microscope and half decent flux.
Tomorrow I am planning to program it, and hopefully start Diagrom.
Forgot to other 0.1 uF caps.
There is no way that someone could build it without microscope and half decent flux.
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Re: Arek's TF534 build
Hi,
CPU with that mask will probably not work @50Mhz, it will run stable @40Mhz though
CPU with that mask will probably not work @50Mhz, it will run stable @40Mhz though
Retro computer hardware & repair in Germany
- arkadiusz.makarenko
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Re: Arek's TF534 build
I have installed 40Mhz crystal here.
Thank you for PCB by the way.
Thank you for PCB by the way.
Do not trust people. They are capable of greatness.
~ Stanislaw Lem
~ Stanislaw Lem
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Re: Arek's TF534 build
You are welcome! glad it arrived safely, was worried it will be lost without tracking..
40Mhz should work nice. Please remember Systest will crap out once MMULib is installed, so scan ram with Systest started from ADF or on a system without MMULibs
40Mhz should work nice. Please remember Systest will crap out once MMULib is installed, so scan ram with Systest started from ADF or on a system without MMULibs
Retro computer hardware & repair in Germany
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Re: Arek's TF534 build
It may be proper failure
voltage regulator died (or I killed it) and I can't find cplds on jtag chain ... using raspberry pi
voltage regulator died (or I killed it) and I can't find cplds on jtag chain ... using raspberry pi
Do not trust people. They are capable of greatness.
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Re: Arek's TF534 build
I think I killed one of the chips during soldering. Question is which one.
Do not trust people. They are capable of greatness.
~ Stanislaw Lem
~ Stanislaw Lem
Re: Arek's TF534 build
First thing I would check is a short to ground on the 5V rail, check for continuity across the PWR pins.
Re: Arek's TF534 build
Naah, those cplds die hard:)arkadiusz.makarenko wrote: ↑Sat Sep 07, 2019 3:51 pm I think I killed one of the chips during soldering. Question is which one.
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Re: Arek's TF534 build
I get OL one way and something around 120ohm when measured other way round.
found first issue - I had crystal installed upside down. :/
Do not trust people. They are capable of greatness.
~ Stanislaw Lem
~ Stanislaw Lem