Port U8glib to Raspberry Pi

[olikraus]

Originally reported on Google Code with ID 171

GPIO Programming: http://elinux.org/RPi_Low-level_peripherals

There seem to be two options:
Low level gpio programming (mmap/linux)

Other option would be to use this lib:
https://projects.drogon.net/raspberry-pi/wiringpi/

Reported by olikraus on 2013-05-26 05:52:58

[olikraus]

U8glib runs well on the Raspberry Pi - well, I've only used it on the PCD8544 but I
don't see why any SPI type LCD display wouldn't work equally as well.  I ported it
over so I could have some easy to use routines for a project that I'm working on.

For ease of porting I used wiringPi.  The question is, other people will find what
I've done useful, but how could it be released?  I could send it on up to something
like github, but it would be better to work with the find chaps that continuously work
on U8glib to keep it updated.

Reported by aaron.j.blanchard on 2013-09-02 14:21:04

[olikraus]

maybe you can attach your work to this issue. Once i find time, i can include it into
the repository.

Reported by olikraus on 2013-09-03 11:16:26

[olikraus]

How would you like it - a patch-set against a known release?

Reported by aaron.j.blanchard on 2013-09-03 15:28:44

[olikraus]

patch set would be ok (against which version?)

Reported by olikraus on 2013-09-03 16:40:04

[olikraus]

I've attached the files, an example file and a picture to show that it works.

Also, the instructions (below) are more detailed than I'm sure you'll need, but may
help other people with this if they want to do it before you've released it.


You'll obviously need to install wiringPi on your RPi


$ wget https://u8glib.googlecode.com/files/u8glib_arduino_v1.13.zip
$ unzip u8glib_arduino_v1.13.zip
$ cd U8glib
And depending on where your patch is:
$ patch -p1 < ../rpi_u8glib.patch 
$ make

$ g++ U8gLogo.cpp -o U8gLogo -l wiringPi -l U8glib -I include -L .
$ sudo ./U8gLogo


I use this with M2tklib (https://code.google.com/p/m2tklib/ - also ported) to have
nice menus.

Limitations:
1. It's hard coded to use CS0 for the SPI (as mentioned in U8gLogo.cpp).
2. I've only tested it with the PCD8554 LCD display.
3. There is an include directory with a couple of random header files from the Arduino
camp which I've put in to make it compile.  I've not bothered to look into these more
as as it stands the library does all I want it to do.
4. There is a printf tucked away I forgot to remove in a layer I wasn't sure what to
do with.  

Any questions - please ask!

Reported by aaron.j.blanchard on 2013-09-04 08:19:03

---

- _Attachment: [rpi_u8glib.patch](https://storage.googleapis.com/google-code-attachments/u8glib/issue-171/comment-6/rpi_u8glib.patch)_ - _Attachment: [U8gLogo.cpp](https://storage.googleapis.com/google-code-attachments/u8glib/issue-171/comment-6/U8gLogo.cpp)_ - _Attachment: [20130904_094959_n.jpg](https://storage.googleapis.com/google-code-attachments/u8glib/issue-171/comment-6/20130904_094959_n.jpg)_

[olikraus]

Thanks for providing the patch. 

Reported by olikraus on 2013-09-04 08:28:18

[olikraus]

Has this been added to the main code base yet? Or do I still need to download the patch
and apply it separately?

Reported by mecworks on 2013-12-03 19:14:14

[olikraus]

Unfortunately i still do not own a Raspberry Pi. So testing is not possible for me.

Reported by olikraus on 2013-12-03 19:37:59

[olikraus]

olikr...: I'd like to buy you a Raspberry Pi so you can add official support for it
:) Where do you live?

Reported by gezuru on 2013-12-05 15:05:43

[olikraus]

It is not only that i do not own a Pi, but currently i do not have time to add support
for a complete new system. Additionally my hope is, that the new "arm" release of u8glib
can be ported easily to the Raspberry Pi.
Still you are free to contact me through e-mail (see source code)

Reported by olikraus on 2013-12-05 18:55:53

[olikraus]

still pending...

Reported by olikraus on 2014-01-22 19:08:19