nanogui: Re: how to test lcd driver with pattern
Subject:
Re: [nanogui] how to test lcd driver with pattern
From:
Jordan Crouse ####@####.####
Date:
15 Aug 2001 14:18:00 -0000
Message-Id: <01081508181301.21329@cosmic>
Since you are running 4 bit, I recommend any of the following patterns:
0x0F (alternating black and white)
0x0FF0 (alternating black and white columns that are 2 pixels wide)
Also, any usage of 0x5 is a great test pattern, because the bits are regular.
Jordan
On Tuesday 14 August 2001 21:36, Caleb CHEUNG [MBS] mentioned:
> Dear all,
> I am new to write lcd driver for mpc823. The lcd is native and 4-bits
> grayscale. How can I hard code some patterns to test the driver? Where
> should I access the memory to put the pattern? Have somebody to give me
> guides for it? Thanks in advance.
>
>
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