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[FRAM71] Pre-Production Batch
03-15-2015, 02:55 PM
Post: #59
RE: [FRAM71] Pre-Production Batch
(03-15-2015 09:01 AM)Hans Brueggemann Wrote:  
(03-14-2015 09:18 PM)Dave Frederickson Wrote:  Works so far. Smile

Whoa, awesome job, dave!
btw..., currently working on V500, which will allow for immediate F-BLOCK address-switching under program control without the need for power-cycling.

Example:
Code:
1) HP-71B is configured "939" & A$  (A$ may be  "4"..."F")
2)  10 A = HTD(A$) 
    20 FOR ROM = 0 to number of ROM images
    30 B = A + ROM @ B$ = DTH$(B)
    40 POKE "2C000", "939" & B$ 
    50 copy image from external device to H_adr$ = "40000"
    60 NEXT ROM
    70 END
3) adjust configuration as required
4) power-cycle

makes sense?


hans

(edited: line 50 of code)

Thanks, Hans.

I have to say that having 1MByte of memory is a very cool feature. Move one jumper and the 71B has a completely different ROM/RAM configuration. What I'd like to know is, with 10 pre-production FRAM71's out there, am I the only one who's even updated the firmware? Perhaps we just need more units out there, which brings up the next topic: Batch Two Status
  1. How is batch two coming?
  2. How many units do you plan to produce for batch two?
  3. Are you still accepting orders? How many are spoken for?
  4. Have you considered offering the 1MByte upgrade as an option?
  5. I suggest the programming header added to the standard configuration. I think that's why some folks haven't updated their firmware.

V500
I have no issues cycling power, so to me this sounds like a power-user feature.
  1. How is a configuration cycle triggered? I know that FREEPORT and CLAIMPORT are one method, but they're not programmable.
  2. If the goal is to not have to cycle power to change configurations, then what's with step 4)?

Dave
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Messages In This Thread
ROM Images - Dave Frederickson - 12-10-2014, 03:51 AM
IRAM vs ROM - Dave Frederickson - 12-13-2014, 06:36 PM
ROMCOPY - Dave Frederickson - 12-20-2014, 08:59 PM
[FRAM71] Bankswitching? - Hans Brueggemann - 02-07-2015, 06:55 PM
v430 beta - Dave Frederickson - 02-16-2015, 06:09 AM
RE: [FRAM71] Pre-Production Batch - cruff - 02-11-2015, 11:45 PM
v430 beta - Dave Frederickson - 02-17-2015, 05:14 AM
v430 beta - Dave Frederickson - 02-27-2015, 05:20 AM
1MByte FRAM71 - Dave Frederickson - 03-14-2015, 09:18 PM
RE: [FRAM71] Pre-Production Batch - Dave Frederickson - 03-15-2015 02:55 PM
RE: [FRAM71] Pre-Production Batch - Gene - 03-15-2015, 02:04 AM
V501 Firmware woes - Hans Brueggemann - 04-23-2015, 07:12 PM
Eagerly awaiting mine - cruff - 04-24-2015, 12:40 AM
RE: [FRAM71] Pre-Production Batch - cruff - 04-24-2015, 12:53 PM
Received my FRAM71 today! - cruff - 04-25-2015, 07:03 PM
RE: [FRAM71] Pre-Production Batch - cruff - 04-26-2015, 12:27 PM
RE: [FRAM71] Pre-Production Batch - Erwin - 10-04-2016, 08:28 PM
MEMBUF - Dave Frederickson - 05-13-2015, 02:50 AM
FRAM71 V502 - Hans Brueggemann - 05-16-2015, 04:02 PM
RE: [FRAM71] Pre-Production Batch - Erwin - 01-02-2016, 08:13 AM
RE: [FRAM71] Pre-Production Batch - Oulan - 06-03-2015, 02:10 PM
RE: [FRAM71] Pre-Production Batch - Oulan - 06-03-2015, 03:47 PM
RE: [FRAM71] Pre-Production Batch - Oulan - 06-05-2015, 09:44 AM
RE: [FRAM71] Pre-Production Batch - Oulan - 06-08-2015, 07:13 AM
FlashPRO - Dave Frederickson - 06-11-2015, 03:42 PM
RE: [FRAM71] Pre-Production Batch - cruff - 06-13-2015, 12:04 PM
RE: [FRAM71] Pre-Production Batch - cruff - 06-15-2015, 11:22 PM
Blinkin' Lights - Dave Frederickson - 07-15-2015, 03:07 AM
FRAM71 LED - Hans Brueggemann - 07-16-2015, 11:47 AM
RE: [FRAM71] Pre-Production Batch - Andres - 01-25-2016, 10:40 PM
RE: [FRAM71] Pre-Production Batch - Erwin - 10-04-2016, 08:46 PM
RE: [FRAM71] Pre-Production Batch - Erwin - 10-04-2016, 09:04 PM



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