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Bob
--- Avoid computer viruses, Practice safe hex ---
-- Specializing in small, cost effective
embedded control systems --
Robert L. (Bob) Smith
Smith Machine Works, Inc.
9900 Lumlay Road
Richmond, VA 23236 804/745-1065
bobsmith5@...
----- Original Message -----
From: <cwade@...>
To: <68300@yahoogroups.com>
Sent: Tuesday, September 10, 2002 12:10 PM
Subject: Re: [68300] MC68376 QSM SCI
>
> I'm not sure what happened to the file. I will try to attach it again.
> Anyone who doesn't get it, but wants it can reach me at cwade@....
>
> Cathy
>
> (See attached file: 68331uart.c)
>
>
>
> jeffrey.tenney@gm
> .com To:
68300@yahoogroups.com
> cc:
> 09/10/02 10:59 AM Subject: Re: [68300]
MC68376 QSM SCI
> Please respond to
> 68300
>
>
>
>
>
>
>
> The attachment doesn't seem to be there. Does Yahoo strip attachments?
>
> Or is it just my e-mail program?
>
> Jeff
>
>
>
>
>
> cwade@... on 09/10/2002 08:38:49 AM
>
> Please respond to 68300@yahoogroups.com
>
> To: 68300@yahoogroups.com
> cc:
> Subject: Re: [68300] MC68376 QSM SCI
>
>
>
> Hello John,
>
> I have not written a comms driver for the 68376, but I have one for the
> 68331 which is similar. Here you go. Hope it helps with your questions.
>
> Cathy
> (See attached file: 68331uart.c)
>
>
>
> "john_gma"
> <johnshaffer@mail To:
> 68300@yahoogroups.com
> .com> cc:
> Subject: [68300] MC68376
> QSM SCI
> 09/10/02 10:30 AM
> Please respond to
> 68300
>
>
>
>
>
>
> Hello all,
>
> I am writing a serial driver for the QSM SCI.
>
> My question is in regards to the interrupt handling.
>
> There does not seem to be a separate ISR.
> How do I clear the interrupts?
>
> There are 2 flags I need to use, TDRE and TC.
>
> The book says that the flags are cleared by:
> 1. reading SCSR (OK, I do that)
> 2. Writing to TDR (I don't always want to do this)
>
> So, how do I acknowledge the interrupt without transmitting something?
>
> Can I write $0000 to SCSR?
>
> Thanks
>
> John
>
>
>
>
>
>
>
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> [Non-text portions of this message have been removed]
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> ---------------------------------------------------
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> [Non-text portions of this message have been removed]
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> ---------------------------------------------------
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>Message
Re: [68300] MC68376 QSM SCI
2002-09-11 by Robert Smith