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guest · 02-07-2006, 02:54 PM

I think that the signal is inverted but ready to connect to rs232 of PC. The idle level output from uart is logical 1 ttl (4-5volt) but when you interface the rs232 the levels are inverted and idle is 0Volt (belove 3v).
So the start bit at uart output is logical 0 but on the rs232 connector will be +12V. I'am very interested too, i have a Scenic with tunerlist.

02-07-2006, 02:54 PM	#11
guest Newbie Join Date: Dec 2005 Posts: 39 My Photos: ()	I think that the signal is inverted but ready to connect to rs232 of PC. The idle level output from uart is logical 1 ttl (4-5volt) but when you interface the rs232 the levels are inverted and idle is 0Volt (belove 3v). So the start bit at uart output is logical 0 but on the rs232 connector will be +12V. I'am very interested too, i have a Scenic with tunerlist.