[FRAM71] Pre-Production Batch
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02-22-2015, 06:30 PM
(This post was last modified: 02-22-2015 06:31 PM by Hans Brueggemann.)
Post: #42
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RE: [FRAM71] Pre-Production Batch
dave, thanks for the feedback, that's great news!
1) found a minor bug just an hour ago during my final testing and seem to have fixed it now. doesn't affect bankswitching or memory management, hence no update at this point (will post update here after a final test round, probably end of this week). 2) as for the bankswitching description in the manual, yes, it lacks "focus" and will probably get more detail, but may take another two weeks or so. 3) i still have to look at using chips with different sizes in one module. 4) as for the 16k vs. 32k memory requirements of the IL-ROM, i had totally forgotten about the note in the educalc article, so, yes, seems that the HPIL-ROM is sometimes configured into a 32 kByte address space, although the DIAG-ROM still reports only 32 kNibble. is there any further read on that anomaly? 5) afaik, bob had the idea to run an image of the HPILROM in FRAM71 to overcome the bugs found in HPILROM 1A. although the image runs fine, it can't "talk" to the IL-processor of the HPIL-module, probably because the module is locking the mailbox area to the processor. i tried to disable the ROM of the module by disconnecting it from DIN, but that disabled the IL-processor as well. question to the hardware guys 'n gals here: is there a way to only disconnect the ROM inside the HPIL-module from DIN and keep the processor connected? hans |
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