button - led help

[ssp]

i solved the initial issue earlier today and now the leds i need to light up, light up. however unless the button is in toggle mode the buttons do not stay on.

what i need is for a button which is not a toggle to have its light stay on until another button is pressed and then the new led comes on and the old led switches off. is this possible? and how

thanks

Edited February 19, 2010 by ssp

[ssp]

i have tried several things to solve this issue now and i still cannot get the lights to stay on until the next button press.

Edited February 19, 2010 by ssp

[ssp]

i found this thread earlier

would this do what i want? and how would i implelent it into my current setting

dout sr1 pins 1-8 are assigned to dinx4 sr8 button 54-64

[Bassman]

i found this thread earlier

would this do what i want? and how would i implelent it into my current setting

dout sr1 pins 1-8 are assigned to dinx4 sr8 button 54-64

I don't know what application you are using, but this is the way I did it in the MB64.

In the file mb64_buttons.inc, around line 237, I changed the routine to this.

MB64_BUTTON_OnOnly

	;; when on: send button value defined in dump

	;; when off: send nothing

	BRA_IFSET TMP1, 0, ACCESS, MB64_BUTTON_NotifyChangeEnd

	;; turn off SR4 8 LEDs

    SET_BSR MB64_BUTTON_VALUES_SR0+3 

    setf MB64_BUTTON_VALUES_SR0+3

	;; save status of button

	rcall	MB64_BUTTON_Hlp_SaveStat

	rgoto	MB64_BUTTON_Send

The shift registers that you want to affect is determined by the two lines, I wanted to use sr4.

    SET_BSR MB64_BUTTON_VALUES_SR0+3 

    setf MB64_BUTTON_VALUES_SR0+3

So in your case you want to affect sr1, so the two lines would look like this

    SET_BSR MB64_BUTTON_VALUES_SR0+0 

    setf MB64_BUTTON_VALUES_SR0+0

You can affect more than 1 shift register, by adding the two lines again, for every shift register you want to affect. For example;

    SET_BSR MB64_BUTTON_VALUES_SR0+0 

    setf MB64_BUTTON_VALUES_SR0+0

    SET_BSR MB64_BUTTON_VALUES_SR0+1 

    setf MB64_BUTTON_VALUES_SR0+1

    SET_BSR MB64_BUTTON_VALUES_SR0+2 

    setf MB64_BUTTON_VALUES_SR0+2

    SET_BSR MB64_BUTTON_VALUES_SR0+3 

    setf MB64_BUTTON_VALUES_SR0+3

That would do all 4 shift registers.

Bassman

[besh]

Is it possible to split this over two regions.

So maybe shift register 0 and 1 change leds by button press

and separately from this shift register 2 and 3?

How to change the code for that?