OTT with adv7390,CVBS no video output

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

OTT with adv7390,CVBS no video output

869 Views
chuanyanyin
Contributor III

Hi :

      I'm debugging OTT TV-box with android 4.0.4, the Hdmi is ok, but the cvbs video(PAL) is blank. My  boot command line is "console=ttymxc3,115200 init=/init video=mxcfb0:dev=adv739x,BT656-PAL,if=BT656,fbpix=BGR32 video=mxcfb1:dev=hdmi  video=mxcfb2:off fbmem=32M vmalloc=400M androidboot.console=ttymxc3 mtdparts=gpmi-nand:20m(bootloader),20m(bootimg),20m(recovery),-(root) ubi.mtd=3 enable_wait_mode=off"

pls note the video0  is adv739x

when I connect cvbs with the TV, the TV shows the blank screen, the kernel's log show the adv7390 works in PAL mode.why?

Labels (4)
Tags (1)
0 Kudos
1 Reply

556 Views
weidong_sun
NXP TechSupport
NXP TechSupport

Hello,chuanyan,

     I have some questions on your projects, would you like to tell me ?

(1)OTT TV-box

Was the product designed by yourself?

(2)android bsp version

Which Freescale BSP version are you using?

(3)Hardware

Do you know which CPU is used on your board?

(4) Kernel command line

I don't understand "video=mxcfb0:dev=adv739x,BT656-PAL,if=BT656,fbpix=BGR32", you added it by yourself or got it from other document?

    In addition, we support ADV7180 for CVBS capture by default in android BSP, The device is in path /dev/video0.

Regards,

Weidong

0 Kudos