Im puzzled with this device.... I am controlling it just fine.. but at power up I cannot get it to set the wiper position for 3-5 seconds
now, my power up sequence is, VDD and VSS (0v) and VLOGIC all at the same time
my micro runs at power up, after 65ms delay, which to me is plenty of time for the AD5293, to power up and reset itself
its very consistent, it takes a long time to set the pot the VERY 1st time... what I do is a loop
till the wiper is 0
while ( (p = getAD5293()) != 0)
the led is on an awful long time...
after the initial power up, its flawless, and all my further sets of the wiper are instant and 100%
im thinking of using an IO line from my micro to supply VLOGIC, im not sure if this well help
but then I can for sure let VDD settle, and then power on VLOGIC
attached is my schematic around this device...