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+--- Thread: HP97 The journey begins (/thread-12156.html)
RE: HP97 The journey begins - PANAMATIK - 11-08-2019 09:01 AM
(10-19-2019 08:31 PM)Harald Wrote: Wow! Can't wait to get one
Same to me. Tony, you are a genius!
Bernhard
RE: HP97 The journey begins - teenix - 11-08-2019 10:15 AM
(11-08-2019 09:01 AM)PANAMATIK Wrote: Same to me. Tony, you are a genius!
Bernhard
I wish that were the case ;-)
cheers
Tony
RE: HP97 The journey begins - Paul Dale - 11-09-2019 11:02 AM
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
RE: HP97 The journey begins - teenix - 11-09-2019 12:40 PM
(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
RE: HP97 The journey begins - teenix - 11-14-2019 11:03 AM
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
RE: HP97 The journey begins - teenix - 11-17-2019 05:13 AM
Hi all,
Happy today :-)
The classic display drivers have responded nicely to my new single processor interface.
cheers
Tony
RE: HP97 The journey begins - Harald - 11-17-2019 10:43 PM
(11-17-2019 05:13 AM)teenix Wrote: Hi all,
Happy today :-)
The classic display drivers have responded nicely to my new single processor interface.
cheers
Tony
Great, looks like your plan has worked! Did you try the decimal points?
RE: HP97 The journey begins - teenix - 11-17-2019 10:53 PM
(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
RE: HP97 The journey begins - teenix - 11-18-2019 04:18 AM
Hi all,
Quite a bit to go with CPU board but looking good so far:-)
cheers
Tony
RE: HP97 The journey begins - albertofenini - 11-18-2019 07:12 AM
WOW, Just wow !!!
Congratulations !!!
RE: HP97 The journey begins - teenix - 11-19-2019 04:28 AM
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
RE: HP97 The journey begins - Harald - 11-19-2019 01:09 PM
(11-19-2019 04:28 AM)teenix Wrote: 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
Great! You are making good progress! I'll dig out a 65 and prepare for a board
RE: HP97 The journey begins - albertofenini - 11-19-2019 01:56 PM
Hi Tony,
both the HP-65 and HP-67 replacement boards are spectacular,
are these available for sale ?
take care Alberto
RE: HP97 The journey begins - teenix - 11-19-2019 02:12 PM
(11-19-2019 01:09 PM)Harald Wrote: Great! You are making good progress! I'll dig out a 65 and prepare for a board
Hopefully not too long :-)
cheers
Tony
RE: HP97 The journey begins - teenix - 11-19-2019 02:24 PM
(11-19-2019 01:56 PM)albertofenini Wrote: Hi Tony,
both the HP-65 and HP-67 replacement boards are spectacular,
are these available for sale ?
take care Alberto
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
RE: HP97 The journey begins - teenix - 11-20-2019 08:22 PM
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
RE: HP97 The journey begins - albertofenini - 11-20-2019 09:27 PM
Very good !!!
Congratulations for the excellent result !!!
RE: HP97 The journey begins - Massimo Gnerucci - 11-20-2019 09:30 PM
Very well done!
Thank you Tony,
RE: HP97 The journey begins - Paul Dale - 11-20-2019 11:02 PM
That's an amazingly good result after the pain the 67 caused...
Pauli
RE: HP97 The journey begins - teenix - 11-20-2019 11:06 PM
(11-20-2019 11:02 PM)Paul Dale Wrote: That's an amazingly good result after the pain the 67 caused...
Pauli
Yes, I thought the 67 would be easier, but not the case. Now that the 65 is ticking over, I'll get back to find that (hopefully last) elusive bug.
cheers
Tony