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by ronyoung1
Wed Sep 26, 2018 6:43 pm
Forum: Bare metal, Assembly language
Topic: Building a network stack
Replies: 12
Views: 2392

Re: Building a network stack

In addition to the USB stuff discussed, you may also want to look at lwip (lightweight IP) stack.
It is located at: https://savannah.nongnu.org/projects/lwip/

-ron
by ronyoung1
Wed Apr 22, 2015 6:24 pm
Forum: Bare metal, Assembly language
Topic: booting to a single graphical program
Replies: 15
Views: 3642

Re: booting to a single graphical program

Hi: Going "bare metal" is probably not what you want to do since you want to display graphics. The 30 second boot time is mainly due to running a "Desktop" distribution with all of the associated daemons and support stuff. One approach you may want to look at is to use the linux kernel and SDL but n...
by ronyoung1
Fri Mar 06, 2015 8:10 pm
Forum: Bare metal, Assembly language
Topic: Running bare metal code on only one core?
Replies: 6
Views: 2334

Re: Running bare metal code on only one core?

Can you run code VideoCore-side or you imperatively need an ARM core? I think you can make Linux ignore one core and just setting up the address for that core I'm not sure. I haven't actually tried any of this yet. I'm still doing research and trying things. My last experiment last night was to try...
by ronyoung1
Fri Mar 06, 2015 6:16 pm
Forum: Bare metal, Assembly language
Topic: Running bare metal code on only one core?
Replies: 6
Views: 2334

Re: Running bare metal code on only one core?

Note though that you cannot share devices with Linux so you need to decide where each device resides One possible approach for this would be to have a server process on the linux side that has a shared memory segment that is shared with the bare metal core... The linux side could handle all of the ...
by ronyoung1
Tue Jan 06, 2015 8:23 pm
Forum: Bare metal, Assembly language
Topic: raspberry pi and systemd
Replies: 5
Views: 1290

Re: raspberry pi and systemd

I second ghans's recommendation... Just replace the /sbin/init system program with your code. There are several things that you may want to keep in mind: you may want to use static linking to simplify what libraries you need. You will probably have to work on configuring your network directly and re...
by ronyoung1
Fri Mar 21, 2014 7:06 am
Forum: Advanced users
Topic: ssh gateway? I think?
Replies: 3
Views: 1616

Re: ssh gateway? I think?

What you are talking about is VPN (virtual private network) with SSH tunnels. This sort of things is done quite frequently to allow for secure traffic over unsecured networks.

Look at the following: https://help.ubuntu.com/community/SSH_VPN

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