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Interrupt is not generated in generic 16 bits YUV modem in DM365

Dear Expert

When using Generic 16bits yUV mode in DM365,  Interrupt is not generated even though data comes at  VPFE.

We uses external VSYNC,HSYNC and pixel clock from external ISP device and register setting is like as below.

 

FMTSPH:0x00000000

FMTLNH:0x00000000

FMTSLV:0x00000000

FMTLNV:0x00000000

FMTRLEN:0x00000000

FMTHCNT:0x00000000

SPH:0x00000000

LNH:0x000004FF

SLV0:0x00000001

SLV1:0x00000001

LNV:0x000003FF

PPLN:0x00000000

LPFR:0x00000000

HSIZE:0x00000000

End of ccdc_setwin...ccdc_config_ycbcr():win(l,t,w,h):(0, 0, 1280, 1024)

ccdc_config_ycbrcr() : params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE

ccdc_config_ycbrcr() : params->buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED

ccdc_config_ycbrcr(): ccdc_if_type == CCDC_YCBCR_SYNC_16

End of ccdc_config_ycbcr...

ccdc_enable(): SYNCEN:0x00000001

ccdc_output_to_sdram(): SYNCEN:0x00000003

 Is there any  check point or usage note for 16bits YUV interface?.