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serial pin help	by maximumbob	2006-07-12 17:20:54
ATTN: ANDYA ... you may be wrong. ;-)	by kahuana	2006-11-19 12:55:59
You better tell TI and maxim that.	by AndyA	2006-07-12 17:45:31
Not according to my RS232 references...	by LthrOttr	2006-07-12 17:50:22
Wrong way around.	by AndyA	2006-07-12 17:53:17
To quote...	by LthrOttr	2006-07-12 17:58:55
And how many times have you used the raw	by AndyA	2006-07-12 18:06:31
I grant that...	by LthrOttr	2006-07-12 19:29:10
Verification:	by AndyA	2006-11-19 12:55:59
I agree, the absolute levels probably don't matter too much in this case however if he is going to look at them with a volt meter then it's important to know what to look for. Wikipedia may not be the worlds most accurate source but for this sort of thing it is generally relativly trustworthy. Here are some alternative sources from the people who actually make the parts: Maxim Application note 83 - Fundamentals of RS232. National semiconductor or TI datasheets. Note all of the circuit symbols show the line drivers as inverters since at the uart side a 1 is a high voltage and on the line side it is a low voltage. Please replace "High level programming manual" in my previous post with "Programming manual which gets the hardware implimentation incorrect"
[ Reply ]
Sorry to be touchy...	by LthrOttr	2006-07-12 20:05:09

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