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Question about 6446 VPFE Resizer

LorryAstra
Expert 1460 points

Hi, I found that PCR.Enable of Resizer stuck to 1 after configering Enable of CCDC.  So, I could not revise any busy-lock registers in Resizer, 'cos Resizer's Busy was always 1.

I've read "TMS320 DM644x DMSoC Video Processing Front End(VPFE) User's Guide", it said that "The PCR.BUSY bit is automatically cleared to 0 and the EDMA event is triggered when it is safe to modify the busy-lock registers (see Section 5.6.4) to setup the next frame" (quote from this User's Guide). But my PCR.Busy stuck to 1, and I could not find a way to revise it.

Could anybody tell me how to deal with it?

I want to have a chance to revise some registers in Resizer, for example: RSZ_CNT;OUT_SIZE ... ,     but these registers is busy-lock, so could anybody help me to resolve it. thanks.

  • TI__Intellectual 995 points

    Is the PCR.BUSY bit ever cleared? If not, this probably means there are errors in your configuration of the Resizer registers. Also, do you configure the Resizer to get the input directly from CCDC instead of DDR? If so, can you try your Resizer configuration with input from DDR first to make sure it works that way?