From the builders notes: Troubleshooting Hints Si570 Does Not Respond to Control Signals Soldering on the Si570 is the most usual problem with lack of control,Message 1 of 3 , Nov 1, 2010View SourceFrom the builders notes:
Si570 Does Not Respond to Control Signals
Soldering on the Si570 is the most usual problem with lack of control, providing the USB is properly recognised.(usually pins 7 and/or 8 on the Si570. They have caused many a builder to lose great clumps of hair and incur massive dents in the forehead.
On Mon, Nov 1, 2010 at 1:49 PM, Alan <alan4alan@...> wrote:
If CFGSR starts and connects then there is no connection between the AVR and
----- Original Message -----
Subject: [softrock40] SI570 won't change freq
> all works but the Si570 will not change freq. I have checked everything
> around it and appears ok. It puts out a startup freq but will not change
> freq with CFGSR. No errors in the software. It is recognized; the USB is
Usually the connection not soldered properly at each end. Otherwise
something else on the I2C connections.
73 Alan G4ZFQ
Cheers,RobbyRichard R. (Robby) RobsonAmateur Radio Station WB5RVZ