Serial Comm startup

[BrianT]

Sinoteq is right. You must condition the Tx data line first. Here is what I do.

high tx232 'preset Txdata line high
pause 50 'allow receiver time to stabilise
debug $0D, $0A 'send carriage return line feed
for a = 2 to 42 ' display 42 characters from EEROM
read a,b
debug b
next a
debug $0D, $0A 'finish with carriage return line feed

HTH
BrianT

[ruijc]

BrianT, sinoteq,

thanks alot for the help.

Actually it's not just the first character but 90% and most of the time 100% of the entire first line .

As a note, i'm using a direct connection from the pic to the serial port.
Also tryed using an 1K resistor between I/O and serial port but the result is the same.

With your experience...what is best ? To use the serial resistor or not ?

Will try your instructions tonight

.

[sinoteq]

That is the best way if you have space for it. This also will save your PC if your Pic board makes a misstake, the MAX chip dies and PC lives...... MAX is cheap PC is not I never connect my things without level-converter. It is so easy to make, really cheap so I don't see why not use it.

Regarding your resistor question I hope someone can explain it to you.