BSII Serial Comm
Archiver
Posts: 46,084
Bob-
<CONJECTURE>
Your BSII may accept 9600,8,E,1 just fine if you tell it to expect
9600,8,N,1 (baudmode = 16468 inverted, 84 true). The Stamp will see
the parity bit when it's looking for a stop bit, and it'll be the
wrong level ~50% of the time. However, I don't think a Stamp does
anything untoward when it doesn't see a correctly presented stop bit.
The real stop bit following the parity bit will just look like an
idle line and shouldn't bother anything.
Maybe worth a shot.
</CONJECTURE>
If that doesn't work a UART that can be configured for 9600,8,E,1
would.
Regards,
Steve
Robert Hench wrote:
> Anyone have any thoughts on getting a BSII to accept a serial input
> using the 9600,8,E,1 protocol?
<CONJECTURE>
Your BSII may accept 9600,8,E,1 just fine if you tell it to expect
9600,8,N,1 (baudmode = 16468 inverted, 84 true). The Stamp will see
the parity bit when it's looking for a stop bit, and it'll be the
wrong level ~50% of the time. However, I don't think a Stamp does
anything untoward when it doesn't see a correctly presented stop bit.
The real stop bit following the parity bit will just look like an
idle line and shouldn't bother anything.
Maybe worth a shot.
</CONJECTURE>
If that doesn't work a UART that can be configured for 9600,8,E,1
would.
Regards,
Steve
Robert Hench wrote:
> Anyone have any thoughts on getting a BSII to accept a serial input
> using the 9600,8,E,1 protocol?
Comments
9600,8,E,1 protocol? I am willing to use external components to accomplish
this. I really only need to monitor the line, no response will be necessary.
TIA
Bob
[noparse][[/noparse]Non-text portions of this message have been removed]
help.
Al Williams
AWC
* Easy RS-232 Prototyping
http://www.al-williams.com/awce/rs1.htm
>
Original Message
> From: Robert Hench [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=f6fD8H2_76r0ayUe4FU_ib2-s8QXEr9s1FcnUJahneWz7xZrpqGt2Tim1IoSQRTkxCdOM_r4tORprmvZxnSD]bhench@w...[/url
> Sent: Sunday, March 17, 2002 7:03 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] BSII Serial Comm
>
>
> Anyone have any thoughts on getting a BSII to accept a serial
> input using the 9600,8,E,1 protocol? I am willing to use
> external components to accomplish this. I really only need
> to monitor the line, no response will be necessary. TIA Bob
>
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
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