This is the mail archive of the ecos-discuss@sources.redhat.com mailing list for the eCos project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Problem with V850 serial interface


On Thu, Dec 02, 2004 at 02:53:52PM +0100, Cristoforo Abbattista wrote:
> Hi all
> 
> We are trying to integrate the C328-7640 camera (OV528 chip) inside an application
> based on eCos OS on a Nec V850. This should be done by sending serial
> command through the RS-232 interface.
> 
> While we are able to develop a Visual Basic program to exchange
> information between a PC and the camera board, we never receive
> information through the V850 chipset.
> 
> For sure we are able to send serial command, because we monitor them
> connecting the V850 to the PC port.
> 
> Some hints to understand why we are experiencing such a
> problem? And also something to solve the problem?
> 
> The Receiving buffer of the V850 is always empty.
> In the past we connect other serial devices to V850 and they worked.

Have you checked the usual problems:

Flow control, number of bits, parity etc...

Are you using the full serial driver or just the hal_diag driver. You
should be using the full driver for this sort of application.

        Andrew

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]