Hello,
We found the error. The spi speed was too high. After we lowered the spi
speed to 3 Mhz everything worked fine. We think the data hold time t_2
is just too short with 10ns.
best regards
Christian
Christian Rusch schrieb:
> Hello Dimitry,
>
> we are using an Atmel ngw100 develepmonent-board, which is connected to
> the at86rf231. The driver is installed.
>
> Unfortunately we are having some trouble with our spi. The man_id the
> driver is asking for is not received correctly. We checked it out and
> found out that the first byte of the register is not correct and changes
> every time it is requested.
>
> first try we probed at86rf230-driver we get the following error_messages
> at86rf320 spi0.2: Non Atmel device found (MAN_ID80 1f)
> second try, this error message
> probe of spi0.2 failed with error -22
> The third try normally works, which means the driver probes.
> at86rf230 spi0.2: Detected at86rf231 chip version 2
> at86rf230 spi0.2: Status: 00
> at86rf230 spi0.2: Status: 88
> at86rf230 spi0.2: Status: 09
> at86rf230 spi0.2: registered at86rf230
>
> In our setup-file of our ngw100, we chose the following options:
>
> .max_speed_hz = 4000000,
> .mode = SPI_MODE_0,
>
> We are clueless, does anyone know what to do?
> Thanks
>
> Christian
>
>
>
> Dmitry Eremin-Solenikov schrieb:
>> On Thu, Feb 4, 2010 at 1:21 PM, Christian Rusch
>> <christian.rusch-lxgablcvjitn68ojjulu0q-xmd5yjdbdmrexy1tmh2...@public.gmane.org>
>> wrote:
>>> Hi,
>>> Using the patch from http://patchwork.kernel.org/patch/27223/ I
>>> integrated the at86rf230 driver, but it does not compile for me.
>> Please use the devel branch of our git tree. at86rf230 depends on the
>> softmac part
>> of the stack which isn't integrated into mainline kernel.
>>
>
> Dmitry Eremin-Solenikov schrieb:
>> On Thu, Feb 4, 2010 at 1:21 PM, Christian Rusch
>> <[email protected]> wrote:
>>
>>> Hi,
>>> Using the patch from http://patchwork.kernel.org/patch/27223/ I
>>> integrated the at86rf230 driver, but it does not compile for me.
>>>
>> Please use the devel branch of our git tree. at86rf230 depends on the
>> softmac part
>> of the stack which isn't integrated into mainline kernel.
>>
>>
>
>
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