Firmware changes

[Marxon]

Hi MidiBoxers!

Is it difficult to edit the MIDIbox SEQ V4 firmware,

to add custom button shortcuts?

Would this be possible for a MIOS32 programming beginner?

Best regards

Marxon

[Hawkeye]

Hola,

 

imho it has a great & well-documented code base, better than many "commercial" pieces of software i´ve seen - it should be possible to add what you want, if you have some C knowledge and are willing to read a bit into the code.

 

Many greets,

Peter

[EsotericLabs]

Yes this is possible. This worked for me.

[Marxon]

OK thanks!

Seems like i have to edit seq_ui.c because

i want Menu + Rwd to work as a Copy button shortcut.

My first try:

static s32 SEQ_UI_Button_Rew(s32 depressed)

{

seq_ui_button_state.REW = depressed ? 0 : 1;

if( depressed ) return -1; // ignore when button depressed

if( seq_ui_button_state.MENU_PRESSED ) ///line added

return SEQ_UI_Button_Copy(depressed); ///line added

if( SEQ_SONG_ActiveGet() ) {

portENTER_CRITICAL();

SEQ_SONG_Rew();

portEXIT_CRITICAL();

} else {

//SEQ_UI_Msg(SEQ_UI_MSG_USER, 1000, "We are not", "in Song Mode!");

SEQ_UI_Button_StepViewDec(depressed);

}

return 0; // no error

}

But i guess it is not that easy...

[ilmenator]

Have you tried looking at the config file on the SD card? A LOT of functionality can be changed there, maybe this is already enough for what you want to achieve?

[Marxon]

Hi again,

...maybe this is already enough for what you want to achieve?

Unfortunately i can not achieve it only by using the configs...

I played with the firmware code some hours.

It was worth the try but it seems without some C knowledge, i will not get it work.

Now i have two options:

Start to lear C or add some additional buttons....

[Hawkeye]

Now i have two options:

Start to lear C or add some additional buttons....

 

solving a problem with your brain is most often better than solving it with your hands :-D

[Marxon]

solving a problem with your brain is most often better than solving it with your hands :-D

Ja ja, hast ja Recht :b

Außerdem wäre etwas C Wissen sicherlich auch für andere Sachen nützlich.

Aber der Zeitaufwand... *seufz*

Kannst du eine gute Seite/Ebook empfehlen und mir sagen auf welche "C-Bereiche" ich besonders Wert legen sollte oder ich für MIOS auslassen kann?

mfg

Marxon

[EsotericLabs]

http://net.pku.edu.cn/~course/cs101/2008/resource/The_C_Programming_Language.pdf

[Hawkeye]

Kann Dir leider nicht mit guten Tutorials helfen, ist bei mir schon über 20 Jahre her :-D.

Hier gibt es einige Artikel - alles in allem ein Haufen Arbeit, die aber belohnt wird:

http://www.mikrocontroller.net/articles/C

 

brief in english: difficult question, can´t help you a lot with that, as it has been too long since I started learning it - linked a few german papers.

 

Ciao,

Peter

Edited June 13, 2013 by Hawkeye

[Marxon]

Thank both of you for this links!

@EsotericLabs:

Thats something i was looking for.

In the Preface it is written:

"The book is not an introductory programming manual; it assumes some familiarity with basic

programming concepts like variables, assignment statements, loops, and functions."

@Hawkeye:

Your link is good too.

Nice tutorials and downloads.

Thus, the next few weeks are scheduled.

But i am sure you will read from me ;)

Best regards

Marxon