14 Jan
2011
14 Jan
'11
4:57 p.m.
On Friday (01/14/2011 at 07:55PM +0000), Tony Duell wrote:
well, it was mine too... but I was trying to be "hip". When I go to
work each day now, I have to leave at least 1.7v at home.
--
Chris Elmquist
You know, that
RS-232 that comes straight out of a microcontroller's
UART at 3.3v or 1.8v swings... that RS-232.
Ah yes, anotehr of my pet hates... People who equate asynchronous serial
communications with RS232. There are of course plenty of asynchronosu
data transmission systems which do not use RS232 levels (like te output
of a microcomntroller [1]) and there are plenty of RS232 interaces that
are synchronous.
Equating 'serial port' with either of them annoys me. Particularly people
who don't accept that USGB, I2C, SPI, floppy disk data, etc are all seiral
interfaces.
[1] Of course my first thought for that would be a 5V swing...