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FRAM71B
01-24-2017, 06:15 PM
Post: #69
RE: FRAM71B
(01-23-2017 08:29 PM)Hans Brueggemann Wrote:  
(01-22-2017 05:30 PM)Dave Frederickson Wrote:  This is interesting. The problem appears to be with F-Block 0 as it can't be FREEPORT'ed either and I suspect this affects all subsequent Chips.

I think you found a bug, or at least a caveat. This could be why it is advised to use F-Blocks 0 and 1 last.

remember that F_Blocks 0 and 1 (aka SYSRAM area) are hardware write-protected. CLAIMPORT and FREEPORT (!) require write access to function properly, so you need to set jumper CN2-4 before writing to that memory area.

Hi Hans,

thank you for the explanation - I see and its in the handbook of yours too, page 10. I did it in this way and its running. The DATA-ACQ ROM is in this area while setting the J2-4. Then I reinstalled it (OFF position) and made some bank switching I got a memory lost. Is it necessary to keep the J2-4 in the ON position cause the LED is shining also in the POWER OFF state of the calculator.

I'll try a fresh installation in the next days, cause i did too much experiments and so I'm not sure if it is about some of them. It give me the possibility to check my 'configuration book'.

In the meantime I made a rough update of my document (not final!) but better than nothing :-) Configuration examples FRMA71B

regards
Erwin
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Messages In This Thread
FRAM71B - Hans Brueggemann - 05-22-2016, 08:26 AM
RE: FRAM71B - Sylvain Cote - 05-22-2016, 02:46 PM
RE: FRAM71B - Dave Frederickson - 05-25-2016, 07:16 PM
RE: FRAM71B - Dave Frederickson - 05-22-2016, 04:13 PM
RE: FRAM71B - Hans Brueggemann - 05-22-2016, 04:54 PM
RE: FRAM71B - Dave Frederickson - 05-22-2016, 05:14 PM
RE: FRAM71B - Hans Brueggemann - 05-22-2016, 07:09 PM
RE: FRAM71B - Dave Frederickson - 05-27-2016, 04:59 PM
FRAM71B HC ROM Feature - Dave Frederickson - 10-02-2016, 03:09 PM
RE: FRAM71B - Erwin - 10-05-2016, 10:45 AM
RE: FRAM71B - Dave Frederickson - 10-05-2016, 03:42 PM
RE: FRAM71B - Erwin - 10-05-2016, 07:36 PM
RE: FRAM71B - Dave Frederickson - 10-05-2016, 08:10 PM
RE: FRAM71B - Erwin - 10-05-2016, 08:25 PM
RE: FRAM71B - Sylvain Cote - 10-06-2016, 04:53 AM
RE: FRAM71B - Erwin - 10-06-2016, 06:24 AM
RE: FRAM71B - Dave Frederickson - 10-06-2016, 03:55 PM
RE: FRAM71B - Erwin - 10-06-2016, 05:41 PM
RE: FRAM71B - Dave Frederickson - 10-06-2016, 06:19 PM
RE: FRAM71B - Erwin - 10-06-2016, 07:43 PM
RE: FRAM71B - Dave Frederickson - 10-06-2016, 08:14 PM
RE: FRAM71B - Sylvain Cote - 10-06-2016, 07:03 PM
RE: FRAM71B - Erwin - 10-06-2016, 07:50 PM
RE: FRAM71B - Dave Frederickson - 10-07-2016, 11:21 PM
RE: FRAM71B - Sylvain Cote - 10-08-2016, 01:20 AM
RE: FRAM71B - Erwin - 10-08-2016, 06:59 AM
RE: FRAM71B - Sylvain Cote - 10-07-2016, 04:45 AM
RE: FRAM71B - Erwin - 10-07-2016, 07:10 AM
RE: FRAM71B - Sylvain Cote - 10-07-2016, 03:10 PM
RE: FRAM71B - rprosperi - 10-07-2016, 01:22 PM
RE: FRAM71B - Erwin - 10-07-2016, 03:04 PM
RE: FRAM71B - Dave Frederickson - 10-07-2016, 05:54 PM
RE: FRAM71B - Dave Frederickson - 10-08-2016, 03:35 PM
RE: FRAM71B - Sylvain Cote - 10-08-2016, 06:21 PM
RE: FRAM71B - Erwin - 10-08-2016, 08:21 PM
RE: FRAM71B - Erwin - 10-23-2016, 09:07 AM
RE: FRAM71B - rprosperi - 10-23-2016, 01:25 PM
RE: FRAM71B - Erwin - 11-01-2016, 09:26 AM
RE: FRAM71B - J-F Garnier - 11-01-2016, 10:13 AM
RE: FRAM71B - Erwin - 11-01-2016, 10:48 AM
RE: FRAM71B - rprosperi - 11-01-2016, 01:42 PM
RE: FRAM71B - Erwin - 11-01-2016, 02:14 PM
RE: FRAM71B - Dave Frederickson - 11-01-2016, 03:39 PM
RE: FRAM71B - Erwin - 01-22-2017, 10:18 AM
RE: FRAM71B - Erwin - 12-30-2016, 12:26 PM
RE: FRAM71B - rprosperi - 12-30-2016, 02:49 PM
RE: FRAM71B - Dave Frederickson - 12-30-2016, 06:57 PM
RE: FRAM71B - Erwin - 01-05-2017, 07:57 PM
RE: FRAM71B - Erwin - 01-22-2017, 02:02 PM
RE: FRAM71B - Dave Frederickson - 01-22-2017, 05:30 PM
RE: FRAM71B - Erwin - 01-22-2017, 06:55 PM
RE: FRAM71B - Hans Brueggemann - 01-23-2017, 08:29 PM
RE: FRAM71B - Dave Frederickson - 01-23-2017, 09:11 PM
RE: FRAM71B - Erwin - 01-24-2017 06:15 PM
RE: FRAM71B - Hans Brueggemann - 01-24-2017, 07:51 PM
RE: FRAM71B - physill - 11-22-2016, 10:53 PM
RE: FRAM71B - Dave Frederickson - 11-23-2016, 12:34 AM
RE: FRAM71B - physill - 11-24-2016, 05:55 PM
RE: FRAM71B - Dave Frederickson - 11-24-2016, 06:17 PM
RE: FRAM71B - Sylvain Cote - 12-30-2016, 07:55 PM
RE: FRAM71B - dayd - 01-17-2017, 09:07 AM
RE: FRAM71B - rprosperi - 01-17-2017, 03:01 PM
RE: FRAM71B - Hans Brueggemann - 01-17-2017, 09:11 PM
RE: FRAM71B - dayd - 01-22-2017, 04:22 AM
RE: FRAM71B - J-F Garnier - 01-17-2017, 05:07 PM
RE: FRAM71B - Erwin - 01-22-2017, 09:34 AM
RE: FRAM71B - Dave Frederickson - 01-22-2017, 07:06 PM
RE: FRAM71B - Erwin - 01-22-2017, 07:21 PM
RE: FRAM71B - Hans Brueggemann - 01-24-2017, 09:03 AM
RE: FRAM71B - Dave Frederickson - 01-24-2017, 04:34 PM
RE: FRAM71B - Hans Brueggemann - 01-24-2017, 07:33 PM
RE: FRAM71B - Dave Frederickson - 01-24-2017, 08:18 PM
RE: FRAM71B - Erwin - 01-25-2017, 06:54 PM
RE: FRAM71B - Hans Brueggemann - 01-25-2017, 07:47 PM
RE: FRAM71B - dayd - 02-01-2017, 10:20 PM



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