Quote Originally Posted by mackrackit View Post
Just a guess.
Try
Code:
pulsout XLAT
shiftout SER, SCLK, 1, [4000]
I have not read the data sheet or tried your device. But the above works for other shift registers.

Isn't turning a pin HIGH and then LOW the same as PULSOUT?


I've worked a bunch with other shift registers, but mostly they were binary state (ON or OFF). This is the first time I'm working with a PWM chip so I'm a little confused on how to shift out that much information and in what order it needs to be done..