Support and General Use > Hardware

Display distortion problem (h300)

<< < (3/3)

salival:
Does anyone know where to set the LCD wait states in the newer builds? I can find
--- Code: ---set_cpu_frequency(long frequency)
--- End code ---
functions in system.c, but I can't find the variables I'm supposed to change anymore.

edit: nvm., got them already (..\firmware\target\coldfire\iriver\system_iriver.c)

sleepwalker:
I am also experiencing display distortion problems with my H340 and Rockbox Build 2006-12-22.

However, using the posted values 0x00000980 and ...0580 (normal, default) and various max-settings between ...2180 and ...4180 makes things only slightly better. It does not really lead to a satisfactory result. Since I do not really know the technical impact of these settings, maybe someone can help me with a few questions I came across:


* Is it necessary/useful to also alter the normal/default value?


* Is there any specific ratio between these values which should be kept?


* Are there allowed minimal or maximal values for each of these settings?


* Is it necessary to also adapt other values (e.g. Flash wait state as indicated by S3TUP in his second posting above)?


* Is there any other file than system_iriver.c which needs to be modified?
Any hint is highly appreciated - Thx in advance!

scretus:
hello,
since I had this problem since today, I decide to solve it with a small patch.

This patch applies to this file
/firmware/target/coldfire/iriver/system-iriver.c
and removes almost any distortion on my iriver h340.

I hope this could help somebody!

Navigation

[0] Message Index

[*] Previous page