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Subject: RE: Baud rate calculationsRE: Baud rate calculations
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From: Nielsen Linus (ext) <"Nielsen>
Date: Mon, 10 Dec 2001 10:41:49 +0100
> I'm looking at the setup code for serial port 1. It sets SMR1
> to 0 which means "asynch mode, bits 8N1, no clock divisor (n)".
> Then it sets BRR1 to 255. BRR1 is the baud rate register.
No it doesn't set it to 255. The 0xff Björn is referring to
is a subtraction (using add #0xff). The BRR value is dynamically
calculated.
/Linus
Received on 2001-12-10
Date: Mon, 10 Dec 2001 10:41:49 +0100
> I'm looking at the setup code for serial port 1. It sets SMR1
> to 0 which means "asynch mode, bits 8N1, no clock divisor (n)".
> Then it sets BRR1 to 255. BRR1 is the baud rate register.
No it doesn't set it to 255. The 0xff Björn is referring to
is a subtraction (using add #0xff). The BRR value is dynamically
calculated.
/Linus
Received on 2001-12-10
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