Picaxe to Picaxe I2c Examples

V

vectraboyv6

Member
hi

after having issues with multiple picaxes locking up when using serial comms. Im giving up with the serial after a weeks worth of work.

im now as a last attempt looking at the i2c protocal. 1xmaster and 4 slaves. Does any body have any simple examples to hand to start with?

ta
 
E

eclectic

Moderator
As a starter, try Advanced search using the terms

I2C* network*

Search Multiple content type.

Tick all the top boxes.

e
 
V

vectraboyv6

Member
have had a quick read up and m2 parts cannot be a i2c slave. so thats out of the window.

looking at 1 one serial comms but not to hopefull

ta
 
S

srnet

Senior Member
Under what circumstances did the PICAXEs 'Lock Up' using serial comms ?

My experience has been that the serial comms are very reliable.

Did you consider that the problem might not be with the serial comms, but how your program is using them ?

Of course its always possible to make 'mistakes' in software so that it appears the PICAXE stops working ..............
 
W

westaust55

Moderator
Posting the code you are/were using for multichip serial comms AND the schematic showing how you had the PICAXE chips connected would be helpful.
 
G

Goeytex

Senior Member
IN regards to the serial comms "lockup" ...

1. Did you use the posted diode OR circuit?
2. Did you use serin with a timeout and qualifier?
3. How did you determine there was a "lockup"?
4. Is the timing in the program such that only one "slave" transmits at a time ?

I suspect your lockups are because serrin ( a blocking comand) is not receiving the data correctly due to either a wiring problem or a code problem.

As suggested by westaust55, post the code you were using as well as an accurate schematic and we can help you get this working.
 
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