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Re: [ts-7000] Frame Buffer Programming ?

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Subject: Re: [ts-7000] Frame Buffer Programming ?
From: "Eddie Dawydiuk" <>
Date: Fri, 4 Aug 2006 10:06:29 -0700 (MST)
Hello,

> If so why wont ;
>
> int fd = open("/dev/mem", O_RDWR|O_SYNC);
>
> regs = (unsigned short *)mmap(0, 4096,PROT_READ|PROT_WRITE,
> MAP_SHARED, fd, 0x72000000);
>
> fb = (unsigned short *)mmap(0, 640 * 480 * 2, PROT_READ|PROT_WRITE,
> MAP_SHARED, fd, 0x72200000);
>
> allow me access?

It looks like you are using the wrong address, try using 0x21800000.

There is a program that paints all shades of red, green and blue to
video memory. You can find it here 
ftp://oz.embeddedarm.com/tmp/gradients.c.

//Eddie


 
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