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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

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

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 Smile

teenix · (This post was last modified: 11-09-2019 01:08 PM by teenix.)

(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

teenix · (This post was last modified: 11-14-2019 11:04 AM by teenix.)

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

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

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?

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

teenix · (This post was last modified: 11-18-2019 04:18 AM by teenix.)

Hi all,

Quite a bit to go with CPU board but looking good so far:-)

cheers

Tony

albertofenini · 11-18-2019, 07:12 AM

WOW, Just wow !!!
Congratulations !!!

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

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 Smile

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

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

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

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

albertofenini · 11-20-2019, 09:27 PM

Very good !!!
Congratulations for the excellent result !!!

Massimo Gnerucci · 11-20-2019, 09:30 PM

Very well done!
Thank you Tony,

Paul Dale · 11-20-2019, 11:02 PM

That's an amazingly good result after the pain the 67 caused...

Pauli

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