Would it be possible to get a copy of the source code for the evaluation software for the HMC830LP6GE?
We don't give out the eval board source code but I've attached an example of VB code which can read and write HMC830 registers. This code utilizes FTDI chip drivers to access the SPI interface on the HMC830. You run this using the "Visual Studio Express" SDK available free from Microsoft.
Click "Open FTDI Port" to open the FTDI port. If you have more then one USB device connected the software displays a list of available interfaces, otherwise it just opens the eval board port.
Click on "HMC830" to open the register access window. This window performs a read of all registers to populate the various fields.
Change values by using the "write address" field, typing new data into the register field or entering new data into the block diagram.
Retrieving data ...