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Topics - sccs

1
General discussion / PWM scale adjustments.
Hi guys

This might sound stupid but I've been racking my brains and I can't figure out if what I want is possible

I have a pwm output from a controller that controls a laser power supply.
Currently 100% on the controller gives 30ma current on the supply
10% gives 5ma current

There is no way to adjust the levels on either the controller or psu to do what I want.

I want to change the pwm So that  1% duty is boosted to 10%. So that in effect 1% will output 10ma on psu

 So instead of the pwm going from 0v to 5v it goes from 1v to 5v?

Does that make sense?
2
Bus Pirate Support / Using BP to id / read a payment token
Hi guys.

i have been given an electronic token key to play with with the BP,
problem is i dont really have a clue where to start to id the chip

when i uncased the key the chip is mounted in black  epoxy / silicone so im stuck.

im used to knowing what im playing with so
any help/pointers on where to start is much appreciated

heres some scans of the board,
http://http://s123.photobucket.com/albums/o282/sccsltd/Unknown%20Token/
havent drawn up the shematic yet its 3am here and time for bed ;)

thanks.
3
Bus Pirate Support / Spi flash ISP support?
Hi,

im looking at purchasing the bus pirate from seeed, my main use would be programming the MX25L1605,MX25L3205,MX25L6405 chips. if possible in-circuit,

the only other programmer that will do what i want is a UBSJTAGNT
from http://www.usbjtag.com/jtagnt/index.php

i would prefer to get the bus pirate vs the USBJTAGNT but i need to know if it will do what i need.

as far as im aware the usbjtagnt is only a usb to jtag adapter

heres the implementation.
http://www.usbjtag.com/jtagnt/sb6120.php

i currently use a willem programmer and remove the chips to flash, which is mega slow due to being parallel port and i have to flash the entire chip just to change 1 or 2 bytes.

i read in the manual that the bp supports spi chips out of circuit so thats a start if nothing else is possible at least i can speed up the programming,

an help much appreciated.

Darren

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