[crisos] Re: CrisOs and Sensirion humidity and temperature sensor

[Frederic AYRAULT <fred@xxxxxxxxxxx>]

Hi all,

I do some other tests.

I can control a led and read the status of a switch using :
the setbits and readbits commands ( http://www.acmesystems.it/?id=17 )
or the file descriptor method in C ( http://www.acmesystems.it/?id=22 )

But I am not able to do it using the GPIO syscalls

Regards,

Frederic

PS : With DarwinFox, you need to create the GPIO device files
mknod /dev/gpioa c 120 0
mknod /dev/gpiob c 120 1
mknod /dev/gpiog c 120 3

Frederic AYRAULT a écrit :
> Hi everybody,
>
> I am trying to play with a SHT11 ( similar to SHT71 ) according to 
> http://www.acmesystems.it/?id=89
>
> I have compiled the program using the webcompiler.
> It is working when the Fox is running the factory default image but I 
> can make it work when I use the DarwinFox or the R2
>
> I have noticed differences in the log files but I did not find where I 
> can do the changes when I try to build my own firmware
>
> factory image :
> Jan  1 00:00:07 axis kernel: GPIO port G: in_bits: 0x01FFFF3F 
> out_bits: 0x3200003E val: FDFFFFFF
> Jan  1 00:00:07 axis kernel: GPIO port G: dir: 00000000 changeable: 
> 01FFFF01
>
> CrisOs Alpha R2
> GPIO port G: in_bits: 0xC00000FE out_bits: 0xF3FFFFFF val: FC0000FE
> GPIO port G: dir: 01FFFF01 changeable: 01FFFF01
>
> I have another problem when I try to cross compile the program : 
> linux/gpio_syscalls.h: No such file or directory
>
> I am using the helloword makefiles and the include file is in 
> trunk/build_dir/linux-etrax/linux-2.6.19.2/include/linux/gpio_syscalls.h
>
> Thank you for your help.
>
> Regards,
>
> Frederic.


--
Frederic AYRAULT
Ecole Normale Supérieure
Departement de Physique
frederic.ayrault@xxxxxxxxxxx


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