I'm transmitting a ramp via SPI to the board, but the output is sitting midrail.
I'm powering VA and VDD with 5V. J1 is connecting pins 2 and 3 to use the onboard regulator. and i'm connecting LDACB to ground on the test port.
over SPI i've tried both wr: 00001000 DDDDDDDD DDDDDDDD (where the data bits ramp from 00000000 00000000 to 11111111 11111111)
i've also tried using wrup: 00010000 DDDDDDDD DDDDDDDD