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haka

31 Posts
Posted - 24 Mar 2004 :  03:01:04  Show Profile  Email Poster
We have problem with some Bitsy Plus card that make the display flickering. We have tested 50 cards and 7 has this problem
with flickering display.

We are using Toshiba LTM08C351 800x600 TFT LCD in
our system and the setting in adsload.hwt look like this.

;Toshiba LTM08C351 800x600 TFT LCD
0xB0100000 0x00000080 ; LCCR0
0xB0100020 0x8302131F ; LCCR1
0xB0100024 0x13031257 ; LCCR2
0xB0100028 0x00309803 ; LCCR3 70Hz

0xC0000F04 0x00000008 ; Color depth: [08=8bpp] 10=16bpp
; Important: Must match panel driver

My question is what can we do do fix this problem or should we send these cards back?

BR Hans Karlsson

akidder

1519 Posts
Posted - 24 Mar 2004 :  10:50:13  Show Profile  Email Poster
Hi Hans. Thanks for the details you provided. Have you taken a look at topic 88? That topic explains most causes of displays flicker in StrongARM systems.

If I read your message correctly, you think there's something wrong with the seven systems that flicker because the others don't do it. It might take some exploration to figure out why that's happening. Can you email us if topic 88 doesn't help? We can look into other options for troubleshooting this issue.
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bvicknair

23 Posts
Posted - 22 Sep 2004 :  15:30:19  Show Profile  Email Poster
I had the same problem. It was the 5v/3.3v select. The display was rated for both however it flickered on 5v. Change Bitsy Plus lcd supply to 3.3v
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