I need to have a variable frequency generator in order to measure the inductance of a coil.
There are these very cheap AD9850 boards that can output sine waves of any frequency up to even 40Mhz.
Just what I need, so I took one of my old MSP430 battery charger boards and wired up the interface to the AD9850 board.
But it is not working, I get no output. I've seen lots of Arduino's interfaced to them, but not any msp430.
I thought I figured out my problem when I discovered that at 5v power, a HIGH signal must be 4.9v,
and as I run my 430 at 3v, not going to work. But the 9850 also runs at 3.3v, and then just 2.4v was high,
so I changed its power to 3.3v, but no joy.
Was hoping someone else might have interfaced a 430 to one of these boards with success.