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Old 07 November 2018, 23:35   #4056
plasmab
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Join Date: Sep 2016
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Quote:
Originally Posted by CRP View Post
Hmm so the situation is as follows: my TF530 does not like the new beta bus JEDs at all. I have tried with every possible hardware combination (with/without trapdoor expansion, with/without gary adapter, with/without chipmem mod etc., all permutations). But there is no setup where it works.

So I went back to the RC2 bus JED. At that point I programmed only the ram cpld with 11-4 beta JED and, lo and behold, the TF530 works perfectly and it recognizes all memory without issues. I ran systest on the 1MB chip mem, on the 2MB fast mem, and on the 1.5MB slow mem, and they all apparently work fine.
The other odd thing I noticed is that IDE has become slower. According sysinfo, now I have speed around 800-900kB/s. Previously I had around 1.6 MB/s.

Does this make sense to you?

Maybe. Can you confirm the resistor value you have on the IDEWAIT line?

I would try the 11-4 beta bus code with the RC2 ram. If that doesnt work there is a hardware fault of some kind.
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