Am Donnerstag, 16. Juni 2005 12:48 schrieb Serg Oskin:
> "JK" == Jan Kandziora wrote:
>
> JK> Serg (and anybody else who may it concern),
> JK> I got some problems with owtcl (owfs-2.1p0RC-1). I connected a single
> DS2406 JK> to an 1-Wire/USB-adapter and used owtcl to control a single LED,
> hooked up on JK> its PIO pin. Unfortunately, it works *a little bit*, so I
> think I found a JK> serious bug in owtcl or owlib.
>
> JK> Please teak a look into the test code below. The first 10 to 70
> (varies) JK> cycles of the loop the LED blinks but I get an
>
> JK> unknown error 4294967295
>
> JK> After about 2..5s (varies), I get an
>
> JK> invalid argument
>
> JK> And the DS2406 output does not change any more. Any more info needed?
>
> JK> Kind regards
>
> JK> Jan
>
> More than three hours worked yours test.tcl - mistakes are not present.
>
I get a RS232<->1Wire adaptor the next days. I will try it out to avoid any
USB problems.
> Probably in my case there were problems with early versions of a kernel
> (2.6.8). Probably it were hardware problems - now those two computers are
> not accessible to me to check...
>
Yes, USB in linux-2.6.8 wasn't really reliable.
> The message "invalid argument" could arise on fault owtcl but only when the
> second argument at:: OW:: put is not specified (fixed).
>
Hm. I always specified two arguments in the test code, I think.
> One more mistake: check of returned value of function FS_write (error if
> not zero). This function returns positive value in case of success, but in
> swig/ow.i is written:
>
> int put( const char * path, const char * value ) {
> ...
> if ( FS_write(path,value,s,0) ) return 0 ;
> return 1 ;
> }
>
> Fixed in owtcl only!
>
Ok, I think that was it with "unknown error 42...".
Many thanks so far. I will try again with the latest version tommorrow.
Jan
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