--- In [email protected], "Jeff Kashinsky" <[EMAIL PROTECTED]> wrote: > > Steve, > Look at http://www.softrockradio.org/node/219#comment-261 > > Also I think I saw something in the files section here. > > I'm waiting for my DDS-60 and I'm going to interface it with the > TXRX6.2 when it gets here. > > Jeff W2UA > --- In [email protected], "Steve Murphy" <murphys@> wrote: > > > > Hi All, > > > > I've had one of the NJQRP DDS-60 boards kicking around here for a > > couple of years, waiting for the right project to come along. Has > > anyone tried interfacing one of these to one of the SoftRock TRX > boards? > > > > I've been following the discussion about the SI-570 boards, but > since > > I have the DDS-60 just sitting here, well, it seems like the right > > thing to do... > > > > 73 > > > > Steve N8NM > > >
Hey Steve & Jeff. If you are interested in controlling the DDS-60 via USB connection with the computer, you can use the dds_controller Yahoo group's software with a Bit Whacker. You need the larger Bit Whacker from Sperk Fun (The $20 18F2550 kit), as the code won't fit into the smaller one anymore without some pruning. The dds_controller group's software can control many DDS chips, including the AD9912. There is some alpha 9912 code at the site now. There are a group of people using this code for the Brainerd AD995x board (PIC/DDS/QSD on one board). I just stuck two 10k resistors at the center pin of J1 on an RxTx V6.1, to bias it at a mid-voltage level. One resistor goes to +5V, the other to ground. Then, connect the DDS-60 output to the center pin, and you should be in business. (I also pull the xtal jumper to stop that osc). If you put the jumpers back, the crystal osc works again. Terry WB4JFI
