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[Simulavr-devel] [patch #4148] stop bit reception in HWUart
From: |
Artur Abels |
Subject: |
[Simulavr-devel] [patch #4148] stop bit reception in HWUart |
Date: |
Thu, 7 Jul 2005 07:23:36 +0000 |
User-agent: |
Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0 |
URL:
<http://savannah.nongnu.org/patch/?func=detailitem&item_id=4148>
Summary: stop bit reception in HWUart
Project: Simulavr: an AVR simulator
Submitted by: artur_abels
Submitted on: Thu 07/07/2005 at 07:23
Category: bug fix
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
_______________________________________________________
Details:
HWUart when receiving stop bit waited 15 samples for it, so stop bit had a
pretty good chance to end by the time HWUart checked for it. Then HWUart
waited for HIGH and after that next LOW bit was assumed to be startbit So when
sending many bytes one right after another, then it received wrong way. This
bug did not cause any trouble until transmission speed was within the limit,
where stop bit was long anough (after stop bit a least for 1 bit time the
sender was inactive, that caused HIGH state on the line as it was a long
stopbit).
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Thu 07/07/2005 at 07:23 Name: 2stopbit.patch Size: 1.74KB By:
artur_abels
<http://savannah.nongnu.org/patch/download.php?item_id=4148&item_file_id=4797>
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/patch/?func=detailitem&item_id=4148>
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- [Simulavr-devel] [patch #4148] stop bit reception in HWUart,
Artur Abels <=