SOLVED - UTFT library error: variable 'SmallFont' must be const...

Other Hardware Displays
1

Hello,

I need some help to start using the Henning Karlsen's UTFT libraries.
As a newbe I read the libraries reference in the arduino main site and do like this:

  • download the .zip file;
  • extract content to my Arduino sketch folder / libraries;
  • open the UTFT_Demo_320x240.pde;
  • click on the verify icon to compile it.

But I'm having the error:
/home/renato/mySketchDir/libraries/UTFT/DefaultFonts.c:14:14: error: variable 'SmallFont' must be const in order to be put into read-only section by means of 'attribute((progmem))'

Do you have any idea?

PS: the lib site is: Electronics - Henning Karlsen

2

It compiled fine for me.

You could try editing /home/renato/mySketchDir/libraries/UTFT/DefaultFonts.c, and changing:

fontdatatype SmallFont[1144] PROGMEM={

to

const fontdatatype SmallFont[1144] PROGMEM={
3

OK dxw00d. Its runs, thanks!

I changed like your tip and compile/run it successfully.
I forgot to say that I'm using Debian and gcc 4.7.1

4

Hello , I am new to forum, seeking help in same matter.
I did the same trick but still it's not working.

DefaultFont.c is changed by me but not working.

Any suggestion?

5

Make sure you are using the latest version of UTFT(V2.81). Those problems are all dealt with.

Regards,

Graham