HP97 The journey begins
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02-02-2021, 06:30 AM
Post: #301
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RE: HP97 The journey begins
(02-02-2021 01:53 AM)BobVA Wrote: Hi Tony: Good idea for a different interface, maybe Bluetooth connection. I'll try to get original printer working first. cheers Tony |
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02-02-2021, 06:33 AM
(This post was last modified: 02-02-2021 08:51 AM by teenix.)
Post: #302
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RE: HP97 The journey begins
Hi all,
More progress. I decided to diverge a bit to play with something new. The display is showing the time from an onboard battery backed MEMs time/date chip. This supports a few modes of operation and an alarm which will sound a piezo buzzer when active. cheers Tony |
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02-02-2021, 07:55 AM
(This post was last modified: 02-02-2021 07:56 AM by Chr Yoko.)
Post: #303
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RE: HP97 The journey begins
(01-29-2021 07:52 PM)teenix Wrote: The 97 board should run from a USB port as it is powered by 5V. But the port would have to supply enough current to run the printer and card reader. Great ! As for USB power, i use an AUKEY USB "fast" charger with no problem (it can send 2A on its normal 5V ports and has an AI port in addition). As for the 810 cards memory, that sounds great and plenty ! Just a question, how will the 97 navigates those 810 cards ? |
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02-02-2021, 08:51 AM
(This post was last modified: 02-02-2021 08:54 AM by teenix.)
Post: #304
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RE: HP97 The journey begins
(02-02-2021 07:55 AM)Chr Yoko Wrote: Great ! There is a menu system built into the software that allows loading and saving of programs from the calculator and exchanging them with a PC via Bluetooth. They are split into 15 blocks of 54 programs. cheers Tony |
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02-02-2021, 08:55 AM
Post: #305
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RE: HP97 The journey begins
Guys with so many improvements it need to get a new front label, like HP-97CX
Sort of ... Still calling this a HP-97 is not making honor to this amazing work ... Edoardo & Alberto |
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02-02-2021, 03:16 PM
Post: #306
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RE: HP97 The journey begins | |||
02-03-2021, 07:12 AM
Post: #307
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RE: HP97 The journey begins
Instead of a fancy display, the printer could be used to output nice menus etc.
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02-04-2021, 12:56 AM
(This post was last modified: 02-04-2021 12:56 AM by teenix.)
Post: #308
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RE: HP97 The journey begins
(02-03-2021 07:12 AM)Paul Dale Wrote: Instead of a fancy display, the printer could be used to output nice menus etc. I've looked into displays but haven't found anything suitable yet and can be expensive. The printer output could also be directed to an infra red port, or direct to a PC. I already have an emulated printer, or as I have a HP printer font, I can print to "PC" paper that can be saved as a PDF or printed on a standard printer. cheers Tony |
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02-23-2021, 11:14 PM
(This post was last modified: 02-23-2021 11:45 PM by teenix.)
Post: #309
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RE: HP97 The journey begins
Hi all,
I have some clock functions working on the 97 now. It has a dedicated battery backed clock chip on the PCB and seems to keep accurate time. I'd like to also try and use the battery as a backup to hold data in the PIC. but lots of other stuff to do yet. The clock has the usual functions like date and alarm and can select ddmmyyyy or mmddyyyy formats and can be set from the 97 keyboard or from the companion PC program. The image below shows in order, clock, date (ddmmyyyy) and day of week (1 is SUN), Alarm time and OFF(0) ON(1) indicator, and a 100th second 99 hour timer. The timer is still under construction because the clock chip has a 32KHz reference output available, but this cannot be divided down evenly to the 100th second timing requirements. as this equates to 327.68 of these clock pulses per 10mS. I am fiddling with the PIC internal hardware to see if I can use it for the job. I converted the HP-65 Day of week function from the Standard PAC to PIC code which was modified slightly because it has Sunday = 0. As you can upload the PC current time and date to the 97, the PC day of week is also 1 = Sunday, so it will match the PIC. cheers Tony |
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02-24-2021, 07:22 AM
Post: #310
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RE: HP97 The journey begins
Hi Tony, really good stuff!
Keep things going. ![]() Greetings, Massimo -+×÷ ↔ left is right and right is wrong |
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02-24-2021, 08:48 AM
Post: #311
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RE: HP97 The journey begins
Hi Tony that's another amazing work !!!
Congratulations !!! Edoardo & Alberto |
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02-24-2021, 01:09 PM
Post: #312
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RE: HP97 The journey begins
Cool!!
Since the 97 has no beeper, what happens when an alarm comes due? Can it be used to run a program instead of beeping, similar to the 41 alarms? --Bob Prosperi |
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02-24-2021, 10:10 PM
Post: #313
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RE: HP97 The journey begins
Insted of an beeper we will use 10 time to print a whole line of
beep-beep-beep-beep... :-) |
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02-24-2021, 11:47 PM
Post: #314
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RE: HP97 The journey begins
(02-24-2021 01:09 PM)rprosperi Wrote: Cool!! The new CPU board has a piezo buzzer. Anything is possible, bearing in mind that the alarm could sound during a card operation, while printing or during a running program :-) cheers Tony |
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02-25-2021, 03:49 AM
Post: #315
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RE: HP97 The journey begins
(02-24-2021 11:47 PM)teenix Wrote: Anything is possible, bearing in mind that the alarm could sound during a card operation, while printing or during a running program :-) All difficult situations to know the best thing to do. The good news is the smart guys that designed the 41 Time Module already figured out what that best thing is. It's probably best to check out what those are, early in the design cycle. They may have made some imperfect decisions, but being consistent with that probably makes the most sense, assuming the new microcode can accomodate them. I like the idea of using an HP-97 as my alarm clock! A lot! --Bob Prosperi |
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02-25-2021, 06:30 AM
Post: #316
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RE: HP97 The journey begins
(02-25-2021 03:49 AM)rprosperi Wrote: I like the idea of using an HP-97 as my alarm clock! A lot! ...glowing in the dark... Greetings, Massimo -+×÷ ↔ left is right and right is wrong |
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03-02-2021, 04:04 AM
(This post was last modified: 03-02-2021 06:22 AM by teenix.)
Post: #317
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RE: HP97 The journey begins
Hi all,
A small update, probably the first 97 to have a beeper installed. As well as the alarm for the clock, it can be enabled to beep when a program has completed and the printer is out of paper, and if an error occurs. cheers Tony |
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03-02-2021, 08:26 AM
Post: #318
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RE: HP97 The journey begins
excellent !!!!!
great work Tony ! (03-02-2021 04:04 AM)teenix Wrote: Hi all, Edoardo & Alberto |
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03-02-2021, 01:36 PM
Post: #319
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RE: HP97 The journey begins
Cool, those are all situations where it makes sense to beep to get the user's attention, but I hope there is also some means to disable the beeper (globally) as there are also times when I may not want audio.
Thanks Tony! --Bob Prosperi |
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03-02-2021, 08:25 PM
Post: #320
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RE: HP97 The journey begins
(03-02-2021 01:36 PM)rprosperi Wrote: Cool, those are all situations where it makes sense to beep to get the user's attention, but I hope there is also some means to disable the beeper (globally) as there are also times when I may not want audio. Yes, there is a menu option to enable/disable the beep function. cheers Tony |
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