Hello? I'm trying to use LTC6804-1 GUI with DC590B and DC1894B.
I connected each board and my desktop.
After clicking READ CONFIG,
CONFIGURATION REGISTERS --> FF FF FF FF FF FF.
According to the user manual of DC1894B, the registers should be D9 00 00 00 00 00 00 after clicking READ CONFIG.
I think my connections are correct because LEDs on the DC1894B blink when I send any command to the board using GUI.
FF.....FF is response when there is no activity on MISO line. You can check for jumper settings for this pin.
This could also be due to IC not receiving RDCFG command.
Thank! My jumper settings were wrong. Now It works changing settings to the settings of the bottom board.