Re: stm3210e eval board adc question

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Dear Christophe!

Thanks for your support. I have a feeling I am getting closer, but not
quite there yet. So I appreciate your time in helping me out. Now I
have been able to add the adc io, as in the screenshot you sent using
only the cvs code. So I am not mixing anymore ecos-3.0 and the cvs.
But when I run the tests on my stm3210e eval board I do not get the
desired output. The output of adc2 test is shown below. It shows that
no samples have been read. I am also not sure what to make of the
\0x09 stuff before the '=' signs.

My goal is to be able to read the value from the potentiometer on the
board (
as shown on page 2/3) and eventually also from the 3 bnc connectors.
First of all, how can I know which input (BNC or Potentiometer) is
connected to which device on which channel? And secondly why when I
try to display values from all channels on both devices I receive
nothing. One of these channels must be connected to the potentiometer
no? The BNC connectors are currently left open.

Hope I can make this work.


\0x00INFO:<ADC performance test>
INFO:<Opening available ADC channel
Opened 32 ADC channels
INFO:<Preparing ADC channels for test>
INFO:<Starting measurement>

/dev/adc00          \0x09= 0
/dev/adc01          \0x09= 0
          \0x09= 0
/dev/adc03          \0x09= 0
/dev/adc113         \0x09= 0
/dev/adc114         \0x09= 0
/dev/adc115         \0x09= 0
INFO:<Finished measurement>

Samples expected after 10210 milliseconds: 10210
Samples read (per channel):
/dev/adc00          \0x09= 0

On Mon, Apr 18, 2011 at 11:47, Christophe Coutand <ccoutand@xxxxxxxx> wrote:
> Hi Jayant,
> You are using ecos-3.0 with the additional STM32 ADC package from CVS? It is usually not recommended to mix source code as it make it more difficult to get support from the mailing list.
> It is not enough to copy the directory packages\devs\adc\cortexm\stm32 in your repository, you must also include the package entry in the database (i.e. ecos.db):
>    alias         { "STM32 ADC driver" adc_stm32 }
>    hardware
>    directory     devs/adc/cortexm/stm32
>    script        adc_stm32.cdl
>    description "
>    This package provides a driver for the ADC interfaces found on the
>    ST STM32 microcontroller family."
> }
> To build the STM32 HAL with ADC support from CVS repository, I do:
> $ ecosconfig.exe new stm3210e default
> $ ecosconfig.exe add io_adc
> You can configure the ADC from the GUI:
> $ configtool.exe ecos.ecc
> Example:
> Regards,
> Christophe
> -----Original Message-----
> From: jayant biswas [mailto:biswasj@xxxxxxxxx]
> Sent: 18. april 2011 10:47
> To: John Dallaway; Christophe Coutand
> Cc: ecos-discuss@xxxxxxxxxxxxxxxxxxx
> Subject: Re: stm3210e eval board adc question
> Thank you Christophe and John for your replies.
> I did checkout the cvs repository and was able to get the right folder
> i.e. packages\devs\adc\cortexm\stm32
> However, this hasn't solved my problem. I am still getting the same
> output as before when calling cyg_io_lookup and cyg_io_read.
> To integrate the new packages from the cvs. I copied  the entire
> repository over my ecos-3.0 folder. Then I regenerated the ecos.ecc
> file for stm3210e. I noticed here that the
> CYGPKG_DEVS_ADC_CORTEXM_STM32 checkboxes were grayed out. I then
> recompiled my application with the newly generated libraries.
> Please let me know if I am missing some steps. I am sure I am. Is
> there a guide that I can follow that shows how to integrate the ecos
> cvs packages?
> Best regards,
> Jayant
> On Wed, Apr 13, 2011 at 20:11, John Dallaway <john@xxxxxxxxxxxxxxx> wrote:
>> Hi Jayant
>> jayant biswas wrote:
>>> I installed ecos as indicated here
>>> .
>> ... so you have the eCos 3.0 release repository.
>> The STM32 ADC driver is not present in eCos 3.0. You will have to
>> checkout the eCos CVS repository in order to gain access to
>> I hope this helps...
>> John Dallaway
>> eCos maintainer

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