Sorry to bother you, guys!
I have a working project that involves ATMEGA8 and ADF4117 PLL synthesizer.
I need to change the registers inside the synthesizer to give me different divider/prescaller ratios. I know what registers are needed, but I do not have the source code for the existing working ATMEGA8, so I need to reprogram it.
The problem is that I do not know how to write the code to use SPI to reprogram the ADF4117 registers.
If someone can shed some light on my issue, would be very appreciated !