[Qt-embedded-interest] Qtopia2.2.0 on MPC5121
Alex Cucos
alex at bluetree.ie
Mon Jul 27 21:39:35 CEST 2009
On Thu, 2009-07-23 at 11:50 +0800, Li Kan-B17977 wrote:
> Hi Alex,
>
> The cause is found that DDR MVTT and MVREF pins are connected together to 0.9V, normally they should be powered seprately.There is one work around for this issue: Remove R39 and connect another 0.9V signal to R38.
> After doing that, the system can stably display full white image even in resolution above 640x480.
> The 0.9V signal may derive from C18,on which the voltage is 1.8V separately from the original signal on MVREF pin.
>
> B.R
> Kan
>
Kan, Shen Li,
Thank you for the fix. I will try it ASAP.
Best regards,
Alex.
More information about the Qt-embedded-interest
mailing list