看了一些资料,按照手册去配置,还是不正确,不知哪里的问题,再次请教?
image : YUV422 ---------------->
OVERLAY --------------> YUV422 BT656
overlay: YUV422 ---------------->
这种如果都是YUV422的不用配置CSC矩阵了吧,输入输出叠加都是YUV422的,所以 BITM_PIXC_CTL_OVFRMT=0
BITM_PIXC_CTL_OUTFRMT=0
//那么pREG_PIXC0_CTL寄存器只设置了OVENA ,ENTC;
*pREG_PIXC0_CTL = BITM_PIXC_CTL_OVENA | BITM_PIXC_CTL_ENTC);
//叠加的举行框
*pREG_PIXC0_HSTART_A = 0u;
*pREG_PIXC0_HEND_A = OVERLAY_H;
*pREG_PIXC0_VSTART_A = 0u;
*pREG_PIXC0_VEND_A = OVERLAY_V;
*pREG_PIXC0_TRANSP_A = 15;
//透明度,这个不知设置的是否正确
*pREG_PIXC0_TC =(0x00u << BITP_PIXC_TC_BVT)|(0x00u << BITP_PIXC_TC_GUT)|(0x00u << BITP_PIXC_TC_RYT);
*pREG_PIXC0_PPL = PIXC_H; /* Set num pixels per line */
*pREG_PIXC0_LPF = PIXC_V; /* Set num lines per frame */
配置两路PIXC DMA,DMA35:image,DMA36:overimage
请各位高手指点,不胜感激!!!!