Question about c6748 vpif sample.

Now the program can run.I have change some enable options in the power manager of the dsp/bios.Can any body tell my the use of the options in the power manager?

But it has failed to create capture channel.In my case, the fpga send video of BT656 to the vpif of the dsp.The dsp just need to capture the video.

Is there anybody can answer it?

Is there anybody can give me some advice?If I can find another program sample of vpif?

wish_best,

Can you please specify the BIOS PSP version(BIOS PSP is one which consists of all the CSLr, drivers and the sample application)?

Which sample application are you using? and what is the configuration of the capture and the display?

Have you tried with the prebuilt binary in the PSP?

Please refer the userguide to know about the connection.

Thanks and Regards,

Sandeep K

Thanks for your help!

The BIOS PSP that I use is PSPdriver_01_30_01.

And the sample that I use is '...C6748_dsp_1_00_00_11\PSPdriver_01_30_01\packages\ti\pspiom\examples\evm6748\vpifloopback'.

The configuration of the capture and the display is just use the default.

But in my case,I don't use the TVP5147 and ADV7343.Instead of it,I use the FPGA to do this work.

The FPGA send the BT656.The dsp just need creat the capture channel and capture it.

Regards,

Wish

Wish,

Since your setup is different from the setup explained in the userguide, it is better to review the channel params being used while creating the capture. 

The default application configures VPIF, I2C and the TVP5147 inside the FVID_create(). So any of these might return the error in your setup. So it is better that you step through the FVID_create() and find out the point where it return error and fails.

Thanks and Regards,

Sandeep K

Sandeep K,

Now the capture and display channel can create and start well.But the program stops at FVID_dequeue( ).I delete the initialization of the  TVP5147 and  ADV7343.

The video mode is PAL(720*576),BT656.I think the VP can't capture the video,so it stops. Am I right?

Is there any parameters that I need to change?

Regards,

Wish

Wish,

Can you check for the interrupt being generated? This can be done by putting the breakpoint in the VPIF driver ISR.

Thanks and Regards,

Sandeep

I have checked the registers of the VPIF.And all of them are right.

The program don't has any Interrupt service function.Is it necessary?

And is there any other demo of vpif?

Thanks and Regards,

Wish

Sandeep,

I also want to test the  EMIF of C6748.But I can't find any demo of the emif.

Can you tell me the information of it?

Thanks,

Wish 

Sandeep K,

I find another vpif demo.But I can't find its .lib files.

It reminds me that symbol undefined errors.Such as, _VPIFDisplayChanenEnable,_IntDSPINTCInit.

Where I can find these lib?

Thanks and Regards,

Wish

Hi Wish,

Are you referring to the same PSP?

Which vpif demo you are referring? and which library is missing?

What errors are being generated, can you post the log messages? What application are you trying to build?

Regards,

Sandeep K 

I find the demo in ...\C6748_StarterWare_1_20_02_02\example\evm6748\vpif_lookback_sd.

And I can't find the library in C6748_StarterWare_1_20_02_02.

Thanks and Regards,

Wish