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JWallace
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Reged: 09/22/03
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Dumb serial computing question
07/14/16 01:46 PM


So I've been looking into old style serial interfaces, like you would find with hardware buses, and I came across something that I don't understand.

I read in some documentation about the Sony LDP1450 (a serially controlled laserdisc player) that, depending on the baud rate, the commands to be sent can vary, impliying that there's a difference in protocol between different speeds (at 9600 bps a command might take one form, but at 4800 it's something entirely different). Call me naive, but I don't understand why that would be the case for any implementation of a serial protocol, as surely it's the same data just sent at different speeds.

Does anyone have any insight as to what could cause an apparent change in a command along these lines? I just can't grasp it and it's bugging me.


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Subject Posted by Posted on
* Dumb serial computing question JWallace 07/14/16 01:46 PM
. * Re: Dumb serial computing question Vas Crabb  07/18/16 06:22 AM
. * Re: Dumb serial computing question JWallace  07/18/16 11:35 AM

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