I have a problem how to handle received data in ADF7021 correctly.
I use 2 pair of EVAL-ADF7021DBJZ and EVAL-ADF70XXMBZ2 boards, ADF7021 Evaluation software, and STM32 microcontroller to receive the data.
Data Mode is set to SPI Mode and STM32 is configured as SPI slave device.
I want to use SWD signal to synchronize received data to microcontroller but at default state the SWD signal is incorrect.
I use logic analyzer to analyze the signal. Here's the pic:
(Ch0-3=SPI bus transmitter device, Ch4-6=SPI bus receiver device, Ch7= SWD Signal receiver device)
In that pic, in default state, it seems like an error signal. The signal must be in low or high state at default depends on SWD mode.
For receiver device, here's the configuration:
Please help, maybe there's a mistake in registers configuration or something.
[edited by: indraak at 8:09 AM (GMT 0) on 6 May 2020]