Hi everyone, I'm currently working on stm32f4 nucleo board. I have a analog device based HMC767 PLL (datasheet and user manual link below) eval kit. i want to sweep a bandwidth of 150Mhz( strt freq= 8.0ghz stp freq= 8.15ghz).

[Sbhen.1488]

I'm using SPI communication for generating the sweep.But Unfortunately Im not able generate the sweep as desired and the PLL remains in the default state giving 9 gHz single tone frequency.

please help me if any one has implemented the HMC based PLL using SPI communication.

I know i'm missing some part of coding but unable to figure out..can't upload my code in the forum.

user manual : https://www.analog.com/media/en/technical-documentation/user-guides/140-00074-00_operating_guide.pdf

datasheet : https://www.analog.com/media/en/technical-documentation/data-sheets/hmc767.pdf