I have recently aquired a couple of cheap AD9850 DDS boards, and found that it is possible to control them directly from the PC through RS-232 handshake lines (RTS, DTR, TXD) without any additional h
Hi Markus, It was interested to learn that you can do this without the NPN interfaces for the lines. You can also eliminate the serial hardwiring if you invoke the serial mode via the FQ_UD and W_CLK