|Re: HEPAX chain broken: did not succeed!|
Message #7 Posted by Vieira, Luiz C. (Brazil) on 16 Nov 2009, 8:38 p.m.,
in response to message #6 by Diego Diaz
thanks for your answer. And yep, Iīm trying to keep the status quo as a regular contributor again... Thanks! 8^)
I actually loaded the module with novclr32.hex and tried to check RAM contents after that, but HEPAX was setting itself again at page #8, so when I tried to use CLRAM (with the 'OK' in the ALPHA register) for page #8 I got [HEPAX ROM] instead of having it cleared.
I have already done some extra 'housekeeping', and my NoV32 unit seems to feel better now after being configured with the Novram-H.exe instead of being configured with the (expected) nov-32-h.exe In fact, I actually opened the module and made a soldering cleanup, because a couple of years ago I found a broken tag after trying to use it with no success (weird behavior at that time). Anyway, it is not totally stable. I programmed it with David Assembler and related labels in pages E and F, but everytime I turn the calculator ON it sees only David Assembler (CAT 2), and I have to turn it off, remove and reinsert the module, turn it on, try CAT 2 again, up until it sees HEPAX. I tried it in all four ports and different calculators (halfnut and coconut), but it happens the same. This NoV32 is the same one that had never accepted the second RAM bank, remember? Is there any chance that a faulty RAM IC does that? I thought about removing it and have the NoV32 reduced to a NoVRAM, but I am not sure about which RAM holds the second bank. To be honest, I opened the NoV32 case so many times that I think it will not survive another 'surgery', but I am worried about the need to remove and reinsert it so HEPAX comes to life.
I will load it with the new SW available (dated 2007) at your site and let you know, OK?
Best regards and thanks again.