HP97 The journey begins
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11-08-2019, 09:01 AM
Post: #141
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RE: HP97 The journey begins
(10-19-2019 08:31 PM)Harald Wrote: Wow! Can't wait to get one Same to me. Tony, you are a genius! Bernhard That's one small step for a man - one giant leap for mankind. |
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11-08-2019, 10:15 AM
Post: #142
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RE: HP97 The journey begins | |||
11-09-2019, 11:02 AM
Post: #143
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RE: HP97 The journey begins
Nope, definitely not a genius. The difference between a fool and a genius is that that the latter has limits and Tony's doesn't appear to have any
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11-09-2019, 12:40 PM
(This post was last modified: 11-09-2019 01:08 PM by teenix.)
Post: #144
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RE: HP97 The journey begins
(11-09-2019 11:02 AM)Paul Dale Wrote: Nope, definitely not a genius. The difference between a fool and a genius is that that the latter has limits and Tony's doesn't appear to have any As Clint Eastwood said .... :-) I'd actually put myself on a lesser par with Bernhard and some earlier achievers. cheers Tony |
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11-14-2019, 11:03 AM
(This post was last modified: 11-14-2019 11:04 AM by teenix.)
Post: #145
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RE: HP97 The journey begins
Hi all,
Some more progress. Here is the HP-65 CPU board almost populated with a little test wire hanging in the breeze. All power supplies work ok, Battery 3.7-4.5V. Volts out are 8V, 6V, 5V and 3.3V. Most software has been written, bugs are next. cheers Tony |
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11-17-2019, 05:13 AM
Post: #146
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RE: HP97 The journey begins
Hi all,
Happy today :-) The classic display drivers have responded nicely to my new single processor interface. cheers Tony |
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11-17-2019, 10:43 PM
Post: #147
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RE: HP97 The journey begins | |||
11-17-2019, 10:53 PM
Post: #148
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RE: HP97 The journey begins
(11-17-2019 10:43 PM)Harald Wrote: Great, looks like your plan has worked! Did you try the decimal points? Yes, all good. I had the test LED across a cathode driver output and it flashed quite bright at first switch on. After a few hours of playing around I figured out the problem and it doesn't light at all now except for a faint glow which looks like normal operation. cheers Tony |
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11-18-2019, 04:18 AM
(This post was last modified: 11-18-2019 04:18 AM by teenix.)
Post: #149
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RE: HP97 The journey begins
Hi all,
Quite a bit to go with CPU board but looking good so far:-) cheers Tony |
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11-18-2019, 07:12 AM
Post: #150
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RE: HP97 The journey begins
WOW, Just wow !!!
Congratulations !!! Edoardo & Alberto |
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11-19-2019, 04:28 AM
Post: #151
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RE: HP97 The journey begins
Hi all,
The HP65 CPU board seems to be running ok. The display, keyboard and PRGM/RUN switch are working and it will accept and run programs. The PC program connects to it and transfers information back and forth. The calculator menu is working and I can use it to load and save program cards plus set operating options from the keyboard. Next is the CRC stuff for the card reader. cheers Tony |
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11-19-2019, 01:09 PM
Post: #152
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RE: HP97 The journey begins
(11-19-2019 04:28 AM)teenix Wrote: Hi all, Great! You are making good progress! I'll dig out a 65 and prepare for a board |
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11-19-2019, 01:56 PM
Post: #153
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RE: HP97 The journey begins
Hi Tony,
both the HP-65 and HP-67 replacement boards are spectacular, are these available for sale ? take care Alberto Edoardo & Alberto |
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11-19-2019, 02:12 PM
Post: #154
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RE: HP97 The journey begins | |||
11-19-2019, 02:24 PM
Post: #155
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RE: HP97 The journey begins
(11-19-2019 01:56 PM)albertofenini Wrote: Hi Tony, Hi Alberto, Will be, but a bit to go yet. The 67 appears to work ok but a bug exists in the card read that I haven't sorted yet. If you consider the complexity of PIC machine code emulating HP microcode and the CRC chip while trying to capture data as the card whizzes through the reader... :-) Anyway, maybe I'm looking at the problem but can't see it so I put it aside for a bit and I'll have a go at the 65 for awhile. cheers Tony |
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11-20-2019, 08:22 PM
Post: #156
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RE: HP97 The journey begins
Hi all,
Well it looks like the HP65 CPU board is behaving. All functions work and it now reads and writes cards :-) It also detects write protected cards which stops the write process and flags an error, but you can override this with a menu option and re-program those cards if required. Just to test the Bluetooth now and it should be good. cheers Tony |
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11-20-2019, 09:27 PM
Post: #157
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RE: HP97 The journey begins
Very good !!!
Congratulations for the excellent result !!! Edoardo & Alberto |
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11-20-2019, 09:30 PM
Post: #158
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RE: HP97 The journey begins
Very well done!
Thank you Tony, Greetings, Massimo -+×÷ ↔ left is right and right is wrong |
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11-20-2019, 11:02 PM
Post: #159
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RE: HP97 The journey begins
That's an amazingly good result after the pain the 67 caused...
Pauli |
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11-20-2019, 11:06 PM
Post: #160
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RE: HP97 The journey begins | |||
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