For

ABCDEFGHIJKLMNOPQRSTUVWXYZ

I get

oaua?c?iuiyiyiyo?uy?yuyy

(U and W didn't produce anything

Raw log shows the following hex output:

F8 E3 FC E6 FE E7 FE EC FB EF FF EE FF EF FF F8 FE FB FF FE FF FC FF FF


-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Barry Gershenfeld
Sent: Monday, May 21, 2001 1:48 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]: serial garbage


incorrect characters.  I put a
>simple "echo" program in the PIC to check.  I press an "A", I should get an
>"A" back, but instead I get some other character, but always the same
>incorrect chacter for a given key.  I checked the math to see if it was a
>simple pattern (bit 8 or something), but no pattern.  Some keys produce the
>same hex value.

Are any of the characters correct?   Mismatched parity will give
about 50% of the characters wrong, and not in any expected order
(like, not every other one).

Single bit errors sometimes aren't obvious at first glance,
either.  If you type ABCDEFGHIJKLMNOPQRSTUVWXYZ, what do
you get back?

Barry

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu