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HP 95LX to PC connection
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Topic: HP 95LX to PC connection (Read 21345 times)
007-half
Member
Posts: 4
HP 95LX to PC connection
«
on:
February 16, 2012, 07:36:15 am »
Hi,
I'm looking for a TTL serial (4-pin DB9) to USB adapter but not sure which, if any, will work with the HP 95LX's 16450 UART, i.e. no buffer.
What is the best solution? (apart from put it in a museum!)
Thank you in anticipation,
007-half
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Jan Axelson
Administrator
Frequent Contributor
Posts: 3033
Re: HP 95LX to PC connection
«
Reply #1 on:
February 16, 2012, 09:06:39 am »
Try a DB9-USB Module:
http://www.ftdichip.com/Products/Modules/USBRSxxx.htm
Check mouser or digikey for stock.
Jan
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007-half
Member
Posts: 4
Re: HP 95LX to PC connection
«
Reply #2 on:
February 16, 2012, 12:09:33 pm »
Thank you Jan,
I've ordered a cable version, so fingers crossed ..
Cheers!
John
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dhouston
Member
Posts: 10
Re: HP 95LX to PC connection
«
Reply #3 on:
February 16, 2012, 02:04:23 pm »
Would this work?
http://www.dealextreme.com/p/usb-to-rs232-serial-port-adapter-transparent-green-24512
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Jan Axelson
Administrator
Frequent Contributor
Posts: 3033
Re: HP 95LX to PC connection
«
Reply #4 on:
February 16, 2012, 05:27:38 pm »
It's RS-232 and you said you were looking for TTL.
Jan
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007-half
Member
Posts: 4
Re: HP 95LX to PC connection
«
Reply #5 on:
February 16, 2012, 06:39:15 pm »
Hi Jan,
Please forgive the inexactitude of my request. Having seen what our Scottish friends at FTDI have to provide, their offer seems too good to miss. Also, I'm just across the border if required to give Glasgow a bloody nose!
Just joking
John
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dhouston
Member
Posts: 10
Re: HP 95LX to PC connection
«
Reply #6 on:
February 17, 2012, 10:48:13 am »
Combining this...
http://www.dealextreme.com/p/usb-to-rs232-serial-port-adapter-transparent-green-24512
and this...
http://www.dealextreme.com/p/rs232-serial-port-express-card-adapter-blue-black-silver-101467
costs less ($6.60/£4.17) than the FTDI device ($28/£17.75).
Logged
007-half
Member
Posts: 4
Re: HP 95LX to PC connection
«
Reply #7 on:
February 24, 2012, 08:39:44 am »
Hi, just a quick note to say thank you for everyone's help.
Finally connected using the FTDI USB-to-Serial Port, running Kermit 95 on Windows 7. A 20 year upgrade for the HP 95LX!
"Swear-box empty, glass half full"
John
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Jan Axelson
Administrator
Frequent Contributor
Posts: 3033
Re: HP 95LX to PC connection
«
Reply #8 on:
February 24, 2012, 10:10:41 am »
Excellent!
Jan
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HP 95LX to PC connection