HDMI 720*480p60 to RS170 Video

Question

Hi 
 
 I have a synthetic video consisting of several dynamic symbols generated by the iMX8 processor. 
 The iMX8 produces the video in HDMI format with a resolution of 720*480p60. 
 I need to convert this HDMI video with progressive frames to RS170 video which is 640*480 interlaced. 
 
 how can I do that? 
 
 Thank you, 
 Yehuda Fryd

PoornimaSubramani · Answer

Hi, 
 ADV8005 is the only part which can support P to I conversation. 
 ADV8003/8005 can convert HDMI progressive to interlaced with RS170 video output support .Please try setting the SD Burst and SD Chroma =1 for disabling the color burst. Since it is an NTSC without color. 
 BURST_CONTROL(0xE484) - This bit is used to enable the SD burst test pattern. 1 - Disabled, 0 - Enabled. CHROMA_CONTROL(0xE484) - This bit is used to control SD chroma. 0 - Chroma enabled, 1 - Chroma disabled. 
 
 Kindly note that, ADV739x/ADV734x can support RS-170 standard but it doesn't do P to I conversation

Thanks, 
 Poornima

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HDMI 720*480p60 to RS170 Video