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Hello,
We made a customized board with two cascaded AWR1243P chips. The external MCU is connected to
AWR1243 through SPI interface.
Now we are trying to download the bss firmware to AWR1243 ( we do not have SPI flash on board )
through SPI with SOP mode 2. However, we always encounter "mmwave device power on failed with error -8", which seems that
AWR1243 did not response after the reset pin is released.
I wonder if we set the correct SOP mode or we miss something.
Best~
Make sure that you have set SOP setting as [SOP2 SOP1 SOP0] = [0 0 1] → Functional SPI mode
And follow power sequencing as per datasheet (Section 5.9.1).
Follow the Host application sequence to initialize the AWR device configuration which is explained in ICD (section 3.2)
Lastly refer reference Host application example provided in the mmwave DFP.
Regards,
Jitendra