send cc with joy but don't touch cs ??

MIDIbox SID
1

Hi,

I used this patch to enable two joysticks in my sid:

USER_AIN_NotifyChange
	;; get 7-bit value of pot #00
	movlw      0x00
	call      MIOS_AIN_Pin7bitGet

	;; forward value to the CC handler

	;; it expects: CC parameter number in WREG

    ;; CC parameter value in MIOS_PARAMETER1, so:

	movwf      MIOS_PARAMETER1      ; save 7-bit value in MIOS_PARAMETER1

    movlw    0x2F            ; control CC #2Fh == Resonance
    call      SID_CCIN_Set      ; call function

	;; get 7-bit value of pot #01

	movlw      0x01

	call      MIOS_AIN_Pin7bitGet

	;; forward value to the CC handler

	;; it expects: CC parameter number in WREG

	;; CC parameter value in MIOS_PARAMETER2, so:

	movwf      MIOS_PARAMETER2      ; save 7-bit value in MIOS_PARAMETER2

	movlw      0x2E            ; control CC #2Eh == Cutoff

	call      SID_CCIN_Set      ; call function

	;; get 7-bit value of pot #02
	movlw      0x02
	call      MIOS_AIN_Pin7bitGet

	;; forward value to the CC handler

	;; it expects: CC parameter number in WREG

    ;; CC parameter value in MIOS_PARAMETER1, so:

	movwf      MIOS_PARAMETER1      ; save 7-bit value in MIOS_PARAMETER1

    movlw      0x48            ; control CC #48h == LFO1 Depth
    call      SID_CCIN_Set      ; call function

	;; get 7-bit value of pot #03

	movlw      0x03

	call      MIOS_AIN_Pin7bitGet

	;; forward value to the CC handler

	;; it expects: CC parameter number in WREG

	;; CC parameter value in MIOS_PARAMETER2, so:

	movwf      MIOS_PARAMETER2      ; save 7-bit value in MIOS_PARAMETER2

	movlw      0x40            ; control CC #40h == LFO1 Rate

	call      SID_CCIN_Set      ; call function

	return                  ; and exit AIN handle

and it works great… i used this one and not the sid_ain.inc-thing because the display should not be touched at all…

but how can i make the joysticks make send CC’s now?

is there a way without changing or touching the cs?

Chris

2

That’s cool talion!

how did you connect the joystick?

Alex

http://www.toneburst.net

3

Hi Chris,

when you add:

  movlw 0xb0
  call MIOS_MIDI_TxBufferPut
  movlw 0x10
  call MIOS_MIDI_TxBufferPut
  movlw 0 ; first analog pin
  call MIOS_AIN_Pin7bitGet
  call MIOS_MIDI_TxBufferPut

  movlw 0xb0
  call MIOS_MIDI_TxBufferPut
  movlw 0x11
  call MIOS_MIDI_TxBufferPut
  movlw 1 ; second analog pin
  call MIOS_AIN_Pin7bitGet
  call MIOS_MIDI_TxBufferPut
[/code]









your Joystick will send CC's







Best Regards, Thorsten.
4

Hi Thorsten,

tried this and it works… I already startet to read the “acmididefines” in the wiki to understand what this really does.

My wish is to fully understand the code one day, so i can write real modifications and get rid of such dirty hacks :slight_smile:

But I just startet to learn assembler so it will be a long way … but the idea of inox (little surface, maximum controll) is so nice, that i wanted to use his idea for my own purposes and customize the firmware for my needs.

The problem with this cc-sending-hack for the joystick (especially with two joysticks/4 pots) is, that if you change the value of one pot, the USER_AIN_NotifyChange funktion causes all values of all 4 pots to be sent as cc… that looks like chaos in a seqencer :slight_smile:

But this problem I’ll try to solve by myself - I’m going to try to safe the value’s of the pins in some var to compare them each time USER_AIN_NotifyChange is called, so i can send cc only if a valuechange for the specific pot is detected.

Long way but it’s nice to know what i am doing :wink:

Greets, Chris

5

Hi Chris,

you don’t need to compare them, the notify function tells you exactly which pin has been changed.

You only need to forward the value which has been changed. In other words: it’s not required to send all values on any change.

Best Regards, Thorsten.