|Re: Uploading ROMīs for HP41, EMU41, CLONIX, NoVRAM...|
Message #3 Posted by DavidY on 27 Sept 2004, 4:37 p.m.,
in response to message #1 by Christoph Klug
Very nice article Christoph!
I suspect that Diago's NoVRam module/Hepax emulation could also work for transfering rom images from a module to PC without the need for IL.
The big "ifs":
(1) whether the external programmer's software has the ability to upload data from the NoVRAM memory. Specificly the "ram" area as well as the "eprom" area.
and (2) whether the hex file can be translated back to binary.
If these conditions are met the using Hexpax commands pages of ram can be mapped out of the "hexpax" memory map and appear as writable module rom. A hexpax command to "copy" rom pages also exists. So:
Using the 41 with NoVRAM and the module to be copied one could copy 4k (or 8k pages) to the NoVRAM from the module rom then shut down and remove the NoVRAM.
Next couple the NoVRAM module to the programmer, connect the programmer to a PC, powerup and use the programmer software to upload the NoVRAM memory.
Finally, break out the hex files data for the copied module code and convert to binary.
So, Diago (or anyone with a NoVRAM) has this been tried??
PS. Damn, after considering this, I got to get a NoVRAM module. Diago, if you read this, what's the easiest way to get you the payment from the US? And what's the cost for NoVRAM in $US w/shipping?