Host Engineering Forum

General Category => Do-more CPUs and Do-more Designer Software => Topic started by: Bobby on April 05, 2017, 12:55:25 PM

Title: Internal Serial Problem
Post by: Bobby on April 05, 2017, 12:55:25 PM: Hoping someone can give me a hint as to why I cannot get a serial hand scanner to work with the on-board serial port.

I have the port configured for "Program Control" and also have all the various com setting correct. When I trigger the scanner I see nothing in the IntSerial.InQueue and also no RX light blink.

If I stick a SERIO card in and use the same setting it works just fine ???

Am I missing something?

Thanks!
Title: Re: Internal Serial Problem
Post by: Evilbeard on April 05, 2017, 01:10:39 PM: I believe the serial port has to be set to "General Purpose".
Title: Re: Internal Serial Problem
Post by: BobO on April 05, 2017, 01:11:54 PM: I'd guess either a busted port, or a hardware handshaking/cable issue.
Title: Re: Internal Serial Problem
Post by: BobO on April 05, 2017, 01:12:15 PM: Quote from: Evilbeard on April 05, 2017, 01:10:39 PM
I believe the serial port has to be set to "General Purpose".

Same thing. Renamed for 2.0.
Title: Re: Internal Serial Problem
Post by: Bobby on April 05, 2017, 01:18:19 PM: I swapped the cpu and am still having the same problem. I can see data in a hyper terminal also with all the same cabling and also serio card is happy...confused as can be haha
Title: Re: Internal Serial Problem
Post by: Bobby on April 05, 2017, 01:36:40 PM: Okay I figured it out kinda. I swapped the adapter I am using to go from a 9 pin serial to a rj-11 and it now works for both the on-board and serio cards. No clue why it would only work with the serio card on the other one ::)
Title: Re: Internal Serial Problem
Post by: Mike Nash on April 05, 2017, 02:06:00 PM: There are differences. I chased this down myself once. See:

http://forum.hosteng.com/index.php/topic,1843.0.html

Post 1 has the pinouts all together. I don't know which adapter you were using, but glad you got it.