16 notes to 32 notes, possible?

Discuss mods, hacks, tweaks, etc.

Moderators: altitude, adafruit_support_bill, adafruit, phono, hamburgers

Please be positive and constructive with your questions and comments.
Locked
User avatar
isak
 
Posts: 835
Joined: Wed May 27, 2009 3:54 pm

16 notes to 32 notes, possible?

Post by isak »

Is it possible to do that in the frimware?
Dont want to use the chain function, just want the possibility to choose between 16 to 32 notes pattern.
Using sokkos.

Thank you.

User avatar
antto
 
Posts: 1636
Joined: Thu Apr 15, 2010 3:21 pm

Re: 16 notes to 32 notes, possible?

Post by antto »

sure, it's just a matter of code
however, you'll have to alter lots of code to make this happen, because the pattern structure is hardcoded as 16 bytes/steps/notes

User avatar
isak
 
Posts: 835
Joined: Wed May 27, 2009 3:54 pm

Re: 16 notes to 32 notes, possible?

Post by isak »

So is that means that every place in the code that 16 step is applied I need to add in some way 32?
Damn...how do I do that?
I feel such a noob when it comes to codes :?

User avatar
antto
 
Posts: 1636
Joined: Thu Apr 15, 2010 3:21 pm

Re: 16 notes to 32 notes, possible?

Post by antto »

well, there are a few definitions, PATT_SIZE 16
obviously you'd change that to 32
however, some things will break

if you use sokkos2 - for triplet patterns it stores a Triplet flag in the last note and it's probably hardcoded to 16 (in other words, changing the PATT_SIZE definition alone won't fix the triplet flag)

changing PATT_SIZE to 32 means that 128 patterns of 32 bytes each equals 4096, that's the entire eeprom (it perfectly fits, but you got no memory left for anything else) ..so, tracks would be broken

this thing won't quite work with c0ntr0l because c0ntr0l expects patterns of size 16

using the bank LEDs to show the position - this will only work for the first 16 notes, since you only got 16 bank LEDs

and in general, the patterns won't be compatible with stock firmware and sokkos

it's all fixable of course, but very messy and the fact that you don't have much (any?) free space for the code isn't gonna help

User avatar
isak
 
Posts: 835
Joined: Wed May 27, 2009 3:54 pm

Re: 16 notes to 32 notes, possible?

Post by isak »

How about do this with the upcoming new CPU?

xlarge
 
Posts: 151
Joined: Wed Jul 11, 2007 2:02 pm

Re: 16 notes to 32 notes, possible?

Post by xlarge »

Yes, in the new cpu there is plenty of space for code.

User avatar
antto
 
Posts: 1636
Joined: Thu Apr 15, 2010 3:21 pm

Re: 16 notes to 32 notes, possible?

Post by antto »

yes, at least there is lots and lots of space
however, that doesn't automatically solve the other problems, to make the pattern length 32 you'd still have to change things in many places in the code
i think you can actualy put a larger eeprom in the same slot as the 4kB one without doing any firmware modifications (you just need an eeprom with the same pinout and same data interface) so then it will be possible to still have track mode on it

actually the new cpu's internal eeprom is 4kB too, but i wouldn't want to write data to it very often
in my firmware, i use it to store settings

Locked
Please be positive and constructive with your questions and comments.

Return to “x0xm0dz”