Si570 - 12F509 rs232 Connection

You do it at your own risk ! You may fry your pic (cheap) and/or your si570 (not cheap).

This program runs in a 12F509 pic plugged into the XTALL board.

The way of connecting the +-15V signal to the PIC on the XTALL board:

You do that at your own risk.

You do it at your own risk ! You may fry your pic (cheap) and/or your si570 (not cheap).
This version has the new "no click tune" feature. You will still hear clicks, but much less.. Its possible to run psdr-sr40 in flex-1000 mode with this firmware.
Click here to get the version working with 12f509 and powersdr-sr40 svn 981
It does not have the dipswitch option, all switches must be open.
It uses the primary keyer port specified in: Setup/DSP/Connections/Primary
Also need to setup for Si570 VFO on LPF in: Setup/Generat/Hardware Config/Softrock VFO Options/Si570 VFO on LPT

There is also a small program to set the frequency without psdr. You can get it Here