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by Dasaan
Sat Apr 25, 2015 10:29 pm
Forum: Troubleshooting
Topic: Looking for help with my Edimax 7811un (RTL8188CUS chipset)
Replies: 3
Views: 1903

Re: Looking for help with my Edimax 7811un (RTL8188CUS chips

You won't be able to do it with the Edimax unfortunately. see this thread for more details
https://gbatemp.net/threads/spillpass-f ... 768/page-3
by Dasaan
Wed Oct 10, 2012 12:02 am
Forum: Bare metal, Assembly language
Topic: Bare metal framebuffer in C
Replies: 43
Views: 20874

Re: Bare metal framebuffer in C

Using a cut down version of Brian's code I've got a basic framebuffer working to the point where I can set individual pixel colours reasonably reliably. The only issue I've got now is that a second or so after drawing the final pixel the screen goes black as through switched off. Oddly if I set the ...
by Dasaan
Tue Oct 02, 2012 11:25 pm
Forum: Bare metal, Assembly language
Topic: Cambridge OS tutorial
Replies: 12
Views: 4006

Re: Cambridge OS tutorial

Your source files should be in the source directory.
You run make from the directory that has the Makefile in it.
by Dasaan
Mon Oct 01, 2012 11:02 pm
Forum: Bare metal, Assembly language
Topic: Cambridge OS tutorial
Replies: 12
Views: 4006

Re: Cambridge OS tutorial

If you downloaded the Template file structure then you need to run make in the same directory that the Makefile is in.

If you didn't download the Template file structure then I'd highly recommend that you do.
by Dasaan
Sun Sep 30, 2012 12:20 pm
Forum: Bare metal, Assembly language
Topic: Bare metal framebuffer in C
Replies: 43
Views: 20874

Re: Bare metal framebuffer in C

This is wrong now PhysicalToARM (with later loader files), so try it without adding 0xC0000000 to address UINT32 PhysicalToARM(VOID *p) { // Some things (e.g: the GPU) expect bus addresses, not ARM physical // addresses return ((UINT32)p) + 0xC0000000; } You needed to add that when the pi was first...
by Dasaan
Sat Sep 29, 2012 9:40 pm
Forum: Bare metal, Assembly language
Topic: Bare metal framebuffer in C
Replies: 43
Views: 20874

Re: Bare metal framebuffer in C

I've been following along with the Baking Pi lesson objectives (sort of) in C. I got OK01->Screen01 working (had to Frankenstein my code with some of the other C frame buffer examples). After that I thought I'd make a simple ClearScreen function that turns all the pixels the same colour. I started o...
by Dasaan
Mon Sep 24, 2012 6:48 pm
Forum: Bare metal, Assembly language
Topic: Baking Pi
Replies: 168
Views: 36255

Re: Baking Pi

OK01-05 all went fairly smoothly and Screen01 worked after much debugging but I am left wondering one thing: In the data section in the framebuffer.s file (from the sample answer) you use .align 12 however the data actually appears to be aligned in 4 byte chunks is there a reason for this that I'm n...

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