Re: kludge’s TF534 build
Posted: 26 Mar 2019 15:59
Hi!
50 MHz (mega-hurts) here. Is that pushing it?
50 MHz (mega-hurts) here. Is that pushing it?
We welcome retro users & hardware gurus alike! Come and join the party :)
https://www.exxosforum.co.uk/forum/
Hi!
The TF534 does not work under 25Mhz at all.Justme14 wrote: 26 Mar 2019 15:42 Hi Kludge ,
What frequency is your cpu running ?
I had similar issues as while building the tf534, I used a 20Mhz crystal ,where Diagrom passed with all test ...
But KS 3.1 I had failed to start. I had this solved when I put a higher frequency as a 48Mhz crystal in ,and all was fine.
And yes the silk screen is wrong for the IDE for pin 1,this took me some time to figure this out as well :oops: ...
Kick 1.3 wont touch the IDE interface. So it will be something to do with that.Justme14 wrote: 26 Mar 2019 21:42 Hi Kludge
Just some thinks I Noticed as today I finished my second TF534 board,this time I soldered a 50Mhz crystal to the board.
Diagrom starts with no issues, but KS Version 3.1 fails to boot. :(
As you said KS 1.3 booted ,I thought wel Lets try this and guess what ?
My 500 plus showed the KS1.3 bootscreen, which then played the megademo with out any issue. :?
I investigated a bit more and will exchange the 50Mhz crystal to a 48Mhz crystal on my second TF534 build and try if this boots KS3.1 ,Which is then actually the same as my first TF534 build..
I don’t think that was his problem, but that DiagROM and KS 1.3 works, but not KS 3.1/3.1.4. The same as for me. KS 3.1 and KS 3.1.4 fails to show the “boot screen”, but KS 1.3 loads Workbench/games from floppy with no issues.terriblefire wrote: 26 Mar 2019 21:44 Kick 1.3 wont touch the IDE interface. So it will be something to do with that.
Yup. That will be IDE. IDE is detected before the boot screen.kludge wrote: 26 Mar 2019 22:06I don’t think that was his problem, but that DiagROM and KS 1.3 works, but not KS 3.1/3.1.4. The same as for me. KS 3.1 and KS 3.1.4 fails to show the “boot screen”, but KS 1.3 loads Workbench/games from floppy with no issues.terriblefire wrote: 26 Mar 2019 21:44 Kick 1.3 wont touch the IDE interface. So it will be something to do with that.
And DiagROM passes the memory, IRQ and CIA tests.
So I have a problem with the IDE? Bridges on the RAM CPLD? Or do you mean that it freezes because I have nothing attached to the IDE port? But that should time out, right?terriblefire wrote: 26 Mar 2019 22:11 Yup. That will be IDE. IDE is detected before the boot screen.
I would expect it to time out after 20 seconds or so. Yeah.kludge wrote: 26 Mar 2019 22:13So I have a problem with the IDE? Bridges on the RAM CPLD? Or do you mean that it freezes because I have nothing attached to the IDE port? But that should time out, right?terriblefire wrote: 26 Mar 2019 22:11 Yup. That will be IDE. IDE is detected before the boot screen.
I will when I get my IDE headers delivered tomorrow :)terriblefire wrote: 26 Mar 2019 22:16 I would expect it to time out after 20 seconds or so. Yeah.
Run the IDE tests in DiagROM 1.1?