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by arieverbeek
Thu Jul 18, 2013 8:30 am
Forum: Nederlands
Topic: Raspberry Jam Nederland?
Replies: 26
Views: 3901

Re: Raspberry Jam Nederland?

Hallo Paul,

Goed idee, ik ben zeker geïnteresseerd en wil zeker meewerken.
Er is een mogelijke prima locatie in Utrecht, ik zal eens vragen naar de mogelijkheden.
Misschien dat er vanuit de BigBen club ook interesse is?

Groet,
Arie
by arieverbeek
Mon Apr 29, 2013 1:57 pm
Forum: Python
Topic: Starting servoblaster headless (solved)
Replies: 2
Views: 730

Re: Starting servoblaster headless (solved)

The solution is in the config.txt file.
Uncomment hdmi_safe = 1

Bye,
Arie
by arieverbeek
Sun Apr 28, 2013 12:11 pm
Forum: Python
Topic: Starting servoblaster headless (solved)
Replies: 2
Views: 730

Starting servoblaster headless (solved)

Hello, I have written a Python script to rotate a R/C servo. In normal situation with HDMI screen active I can autostart the script with a line in rc.local . Servoblaster is used in usermode. But when I switch the screen off and then restart the Raspberry the script will autostart but servoblaster i...
by arieverbeek
Sat Mar 23, 2013 1:46 pm
Forum: Bare metal, Assembly language
Topic: Raspbery Pi Forth Operating System
Replies: 31
Views: 21309

Re: Raspbery Pi Forth Operating System

Hi Roland,

I compiled your code from git and everything runs fine i saw you repair the marker function.
The only thing I changed was the framebuffer file on Raspberry rev 2.

Thanks,
Arie
by arieverbeek
Fri Mar 22, 2013 4:11 pm
Forum: Bare metal, Assembly language
Topic: Raspbery Pi Forth Operating System
Replies: 31
Views: 21309

Re: Raspbery Pi Forth Operating System

you may be interested to know what this guy has done ( but I think its on top of linux ) http://thebeez.home.xs4all.nl/4tH/ Does it run on Raspberry Pi?? Roland aviatorRHK :mrgreen: Yes 4tH runs on Raspberry Pi, but you cannot access GPIO registers directly. The nice thing on your Forth is (for me)...
by arieverbeek
Thu Mar 14, 2013 3:52 pm
Forum: Bare metal, Assembly language
Topic: Forth Operating System with Baking Pi roots.
Replies: 43
Views: 9317

Re: Forth Operating System with Baking Pi roots.

Hi,

I made adjustments to the linker script and the framebuffer and compiled a new kernel.
There was also a problem with my keyboard, but now its working.
I can change the raspian kernel for the forth kernel and forth is running.
So I can play with a real Forth ;-).

Bye,
Arie
by arieverbeek
Wed Mar 13, 2013 8:57 am
Forum: Bare metal, Assembly language
Topic: Forth Operating System with Baking Pi roots.
Replies: 43
Views: 9317

Re: Forth Operating System with Baking Pi roots.

Hi Roland,

The baking pi tutorials i have successful followed until screen03.
I have formatted an SD-cart placed your file form rpiboot on it. Put that does not work.
I know will compile your code with the framebuffer adjustment as Dextor has suggested to night.

Bye,
Arie
by arieverbeek
Tue Mar 12, 2013 9:07 pm
Forum: Bare metal, Assembly language
Topic: Forth Operating System with Baking Pi roots.
Replies: 43
Views: 9317

Re: Forth Operating System with Baking Pi roots.

Hi Roland, I have problem to start your Forth OS. On the standard Raspbian SD I have placed your files from rpiboot in the root. Only the red led is showing. No screen action. After reinserting the HDMI cable still no sign of live. If I replaced bootcode.bin with the Raspbian version. I see the gree...
by arieverbeek
Mon Mar 11, 2013 7:28 pm
Forum: Bare metal, Assembly language
Topic: Forth Operating System with Baking Pi roots.
Replies: 43
Views: 9317

Re: Forth Operating System with Baking Pi roots.

Hello Ronald,

Very nice that you are working on a bare metal Forth. I play around whit Gforth en GPIO libs. I love tto try your version please send me your development package.
familieverbeek [at] lijbrandt [.] nl

Bye,
Arie
by arieverbeek
Sun Mar 03, 2013 6:49 pm
Forum: Other programming languages
Topic: FORTH Language for RPi ?
Replies: 10
Views: 7142

Re: FORTH Language for RPi ?

Hello, I'am using Gforth with GPIO libraries which you can find here : https://github.com/harrypower/Rpi_Gforth_GPIO. It has also a assembler/disassembler for arm. The only trouble I have with the assembler and the Forth is you can only access the virtual memory, so you need the c-libraries for GPIO...
by arieverbeek
Fri Feb 08, 2013 8:12 am
Forum: Bare metal, Assembly language
Topic: Baking Pi screen01 - input validation
Replies: 4
Views: 1105

Re: Baking Pi screen01 - input validation

Hi, Gulak
Code: Select all
cmp r1,#15
movhi pc,lr
This code is correct. The lower 4 bits are used to store the channel.
Four bits is #15.
There are only 7 channels I don't no what the use is of the fourth bit.
Bye,
Arie
by arieverbeek
Mon Jan 28, 2013 2:43 pm
Forum: Python
Topic: ReadWrite register R0
Replies: 0
Views: 274

ReadWrite register R0

Hello,

Is it possible in Python to read/write register R0 ?

Arie

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