Help with new panel design

[Jaicen]

Ok, so I have to be different! I want to design a control surface that will fall somewhere between step B and step C, a CS Lite so to speak,  which has dedicated controls for certain features but is less complex in terms of wiring. I am aware of the inherent lack of future proofing this entails, but i'm comfortable with that. If I ever want an expanded MBSID, i'll build another!

OK, I plan to make a PCB to mount all the controls on, and then have a single DINX4 module 'plug' into it via the headers if that makes sense! To clarify, the encoders and buttons will mount on the board, and then a pair of 16-pin cables will be used to connect the DINX4 to the 'control surface lite' PCB. A similar style of connector could be used for the DOUT, although my design only requires around 17 DOUT pins, so i'm considering integrating that into the PCB. I think that would be a neat solution.

The design i'm thinking of uses a single set of ADSR and envelope depth knobs, which can edit ENV1 and 2 individually or simultaneously using a pair of buttons.. It will also have VCF Freq & Q controls, and buttons to select one or more of the following: LP/BP/HP and Assign to OSC 1, 2 and 3 all of which can be selected simultaneously.There will be  more buttons to select SID 1 & 2, to select which voices will be edited (3 more buttons).  and to I also want a pair of encoders to adjust osc fine tune and portamento time, and a button to select oscillator waveform.

An example of how i'd like this to work:

Select SID 1,

select all three voices,

select a saw tooth wave and edit ADSR

Assign all three voices to VCF

Does that all make sense???

Right now, all the PCB design I can get my head around, the thing I need help with is the coding in MIOS. So far, i've been unsuccessful even getting MIOS open! I need some help, but I want to learn how to do this, i'm not asking for it to be done for me.

I've got a picture of what I want to assign to the DINX4 pins but I can't upload it to Putfile for some reason. If it helps I can mail it.

Right, what I need to know:

1: How to get into MIOS!!

2: Where to look for the info I need to do the code mods

If anyone has done anything like this i'd like to hear from them. I don't think i've ever seen any control surface (with the exception of Der Brat, which is ace) which uses a custom config.

[Sinnsyk]

I can't help you with your problem, but pictures can be uploaded to this forum. When posting/editing, click Additional Options... and do the upload.

[Jaicen]

Thanks Sinnsyk I didn't realise you could do that. How much trouble would that have saved me!?

[stryd_one]

hi jaicen. Download the source code for MBSID and look at the cs_* files.

[Jaicen]

where are the source files? How do I look at the *.cs files? I've only found .hex files for v1.9.

Imagine that I know nothing and just hold my hand a little ;)

[stryd_one]

OK download the SID application zip file 

In that file are some called cs_*.inc, for exampe cs_menu.inc

You can edit them in notepad or in MPLab.

Sorry I can't offer any better advice. I haven't fooled with the CS on the SID at all.... I took a look, but it's pretty complex and would take some time to figure out.... I think I'll leave that up to you ;)

[Jaicen]

Right, that's a step in the right direction! Thanks for that Stryd.

Are there any tutorials on modifying the code available on the Wiki perhaps??

[Jaicen]

Ok, I think I'm getting the hang of this.

If I take the first shift register as an example. I want to assign the first three pins to buttons to edit:

1. SID 1

2. SID 2

3. SID 3

in cs_menu_io_tables, I need to make a table containing:

  DIN_ENTRY CS_MENU_BUTTON_SID1, 2,      0

DIN_ENTRY CS_MENU_BUTTON_SID2, 2,      1

DIN_ENTRY CS_MENU_BUTTON_SID3, 2,      2

Which means on the second Shift register, pins 0-2 call up SID 1-3. Is this correct?

And correspondingly, I can use the following to add 3 LED's to show which SID is being edited:

CS_MENU_DOUT_TABLE

;; Register and bit SR# Pin#   Description

DOUT_ENTRY CS_MENU_SELECTED_SID_FLAGS, 1, 0, 0 ; SID1 LED

DOUT_ENTRY CS_MENU_SELECTED_SID_FLAGS, 1, 1, 1 ; SID2 LED

DOUT_ENTRY CS_MENU_SELECTED_SID_FLAGS, 1, 2, 2 ; SID3 LED

If I understand this correctly, this will turn on the first three pins of the first shift register when the SID1-3 buttons are pressed??

If so, how do I implement functions that aren't already in the cs tables such as 3x buttons for filter type, in order that the filters can be mixed (ie LP + HP).

[stryd_one]

No probs mate.

Unfortunately there is very little documentation on customising on the wiki. If you could write a few words about what you find it would be a great help.

edit: you beat me to it ;)