usb driver problem

[Thomas McGrath III]

Claudi,

Ok, I downloaded your stack and am testing now. (Trivial: The Note would not go away with out error so I read it and then moved it out of the way.)

My Arduino code continuously loops sending the result of a simple math to the PC. So it returns 0 originally but if I send 1 it returns 2 and if I send 4 it returns 5 etc.

/dev/cu.usbmodem* = cu
/dev/tty.usbmodem* = tty

I tried 
cu Driver -- "Opened OK" - LED blinking send - no receiving - send blinks receive LED on Arduino Uno
tty Driver -- HANGS - LED blink send - no receiving - no sending due to hang

cu File -- "Can't open that file" NO LED blinking - no receiving - no sending
tty File -- HANGS - LED blink send - no receiving - no sending due to hang

Tried again
cu File -- HANGS (unplug USB and plug back in) - receive data in buffer???
cu File -- "Opened OK" - HANGS (unplug/replug) - receive data - no sending since I just replugged it in

Not sure what this says to this issue.

I still think there is a buffer and or flow control problem and maybe still an EOF since that is what your code uses and I stopped using that in mine and was able to get a continuos read.

Thanks (more troubleshooting)


-- Tom McGrath III
http://lazyriver.on-rev.com
3mcgrath at comcast.net

On Jan 23, 2011, at 9:29 AM, Claudi Cornaz wrote:

> Tom and all,
> 
> I have made a test stack which I now use to test my connections with the arduino board.
> 
> The sketch just echo's what it recieves back out with a delay of 500 millisecs. (It's included with the stack)
> 
> you can download the stack from:  http://dl.dropbox.com/u/13685013/arduino%20tester.livecode
> 
> I have this working with my macbook OS 10.5.8    /    livecode 4.5.2 build 1150   /   arduino uno 0022   driver: /dev/cu.usbmodem3d11
> I seems it's working partly with my iMac OS 10.6.6    /   livecode 4.5.1  build 1130   / arduino uno 0022   driver: /dev/cu.usbmodem3a21
>   (sending seems ok. The arduino reacts by transmitting, I can see the tx led flash, but I can't seem to recieve.
> 
> The first thing I will do is to update livecode on my iMac to see what's gonna change I guess.
> 
> I'll post the results
> 
> I hope this stack will prove usefull.
> I am curious what works for you. If you have any questions, feel free to contact me.
> 
> Succes,
>    Claudi
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