topic Re: iMX6SX: VADC: force video standard in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/iMX6SX-VADC-force-video-standard/m-p/462858#M72759 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I did not try this yet, but if you look at the vadc driver, it has a dev_init function. This function initializes almost every parameters for the block to work. If you don't want it to automatically sense the signal format/mode, then you can disable those codes and force the module to work in you desired mode with appropriate parameters for that mode. Not try yet but must be working, I guess.</P><P>Good luck.</P></BODY></HTML> Wed, 09 Dec 2015 06:13:00 GMT davidtrinh 2015-12-09T06:13:00Z iMX6SX: VADC: force video standard https://community.nxp.com/t5/i-MX-Processors/iMX6SX-VADC-force-video-standard/m-p/462857#M72758 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I'm using the integrated video-adc of the iMX6 SoloX. In both U-Boot and Linux Kernel the VADC performs an auto-detection of the video-standard (PAL/NTSC). I would like to have that pre-configured to save time and to handle weak/noisy signals better. How can I do that? I checked the documentation and found the "Manual Override (VDEC_MANOVR)" register, but the documentation is very minimalistic. I guess the "pal_override" and "pal_manual" flags are supposed to do that but I don't fully understand how. Unfortunately both UBoot and linux-kernel don't use this register at all so there is also no way to look it up.</P><P>Long story short: how do I force the VADC to use PAL or NTSC?</P><P></P><P>Thanks.</P></BODY></HTML> Fri, 04 Dec 2015 13:05:49 GMT https://community.nxp.com/t5/i-MX-Processors/iMX6SX-VADC-force-video-standard/m-p/462857#M72758 JohnDoe1z 2015-12-04T13:05:49Z Re: iMX6SX: VADC: force video standard https://community.nxp.com/t5/i-MX-Processors/iMX6SX-VADC-force-video-standard/m-p/462858#M72759 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I did not try this yet, but if you look at the vadc driver, it has a dev_init function. This function initializes almost every parameters for the block to work. If you don't want it to automatically sense the signal format/mode, then you can disable those codes and force the module to work in you desired mode with appropriate parameters for that mode. Not try yet but must be working, I guess.</P><P>Good luck.</P></BODY></HTML> Wed, 09 Dec 2015 06:13:00 GMT https://community.nxp.com/t5/i-MX-Processors/iMX6SX-VADC-force-video-standard/m-p/462858#M72759 davidtrinh 2015-12-09T06:13:00Z