TVP5150 video decoding chip debugging summary

Development platform: TI DM365 Multimedia processor, TVP5150 video decoder chip

Development requirements: The use of TVP5150 decoding PAL video, yuv4:2:2 format output, and then to DM365 VPFE front-end processing to zoom in to 720p resolution, and then output from the VPBE back to the LCD

TVP5150 configuration: (i²c configuration) The configuration code for the YUV 4:2:2 8bit output is given below:

	Tv_decoder_write (0x00, 0x01);
	Tv_decoder_write (0x00, 0x00);	Tv_decoder_write (0x03, 0x0d);
	Tv_decoder_write (0x03, 0x6f);
	Tv_decoder_write (0x04, 0xc0);
	Tv_decoder_write (0x0d, 0xc0);	//Brightness adjustment
	tv_decoder_write (0x09, 0x80);
	Color saturation of
	tv_decoder_write (0x0a, 0xd0);
	Color adjustment   increased to green
	tv_decoder_write (0x0b, 0x04);
	Contrast adjustment
	tv_decoder_write (0x0c, 0xb0);
	Tv_decoder_write (0x0e, 0x03);
	Tv_decoder_write (0x1b, 0x13);

TVP 5150 debugging in this way is generally easy to adjust, mainly is the DM365 front-end configuration.

Front-end of the main configuration is to take the data from 5150, and then stored in the DDR, the main thing to do here is to first merge two data into a field, where the DM365 front-end has the corresponding module to configure, and then the combined two of the data, into the Zoom module to zoom, Zoom in to 720P data, then get the back end for display.