serout command

[kieran_akers]

ive set up my picaxe 40x to use the serout comman (as some may know from earlier questions) it seems that the line coming from pin7(the serout pin) is at a constant voltage of around 4V. Should this be the case as i expected for it to remain at 0 until i wanted to send data?

 

[hippy]

Do you mean Leg 7 or Output Pin 7 (Leg 40) ?

Leg 7 should remain at 0V when Idle, and is only used when downloading and during the SERTXD command.

The Output Pin specified in a SEROUT will idle at a level dependant upon the Baud Rate specifier; with Nxxxx it should idle at 0V, with Txxxx it should idle at +V.

The voltage measured will depend upon what the Output Pin is connected to, and will give a 'mid-way' reading while data is being transmitted.

 

[ylp88]

A mid-way reading depending upon what is being sent, of course. What are you using to measure the voltage?

ylp88