clone / read / write 555 TIMER CHIP? HELP!

[stevenagebenwhite]

Hello I have a 555 timer chip that I need to clone what is the correct way to read and write to the 555 chip? I got this chip from a friend in the states and is used for rapid fire in an xbox 360 controller only thing is, I live in the UK and getting my friend to send me another one is quite expensive on the post and time for it to arrive and wanted to know if there was a schematic I could follow with simple software to read and write to the chip, if you can help I dont mind paying for your help etc, please let me know

Ben

 

[Reloadron]

Are you talking about a standard everyday 555 timer chip? For example a LM555? As in small 8 pin little chip? Because if you are something is very, very wrong as you don't program (read from or write to) a 555 timer chip.

Ron

 

[stevenagebenwhite]

this is what I thought, the 8 pin chip is confirmed to be a 555 timer chip

ground - - not used
on/off - - right triger on controller
led - - left trigger on controller
3 power - - ground
_TT_ << notch

this is the properties of the chip any idea's or is it not a 555 timer chip, the more I look into it on you tube for "rapid fire xbox 360 chip" every states its a 555 timer 8 pin chip and have been told you cant programme this chip! so.... how was it made this way to function multiple modes etc?

 

[Jaguarjoe]

Is this sort of what you are trying to do:

**broken link removed**

There is nothing programable here. All of the characteristics of this circuit are determined by the component values.

All of these components should be locally available at your suppliers such as RS and Maplin. Radio Shack has them too but IDK if they are in the UK.

 

[stevenagebenwhite]

this doesnt help and no that is nothing like it, have a look at my you tube video as you can see the 555 timer chip is glued to the board the 7 wires are connected else where on the board, what is giving the chip its values

YouTube - Inside customers 7 mode rapid fire xbox 360

many thanks for your help so far

Ben

 

[stevenagebenwhite]

i think it might be a 741 Mini Dip Ic - 8 Pin, i dont know as the 8 pin chip has no marking's or label to tell me what it is

 

[Nigel Goodwin]

i think it might be a 741 Mini Dip Ic - 8 Pin, i dont know as the 8 pin chip has no marking's or label to tell me what it is

That sounds unlikely, it's probably a processor of some kind, 8 pin PIC's are often used for such purposes.