Hello team,
we are designing 4D radar based on 2243, now is writing SPI interface code, according to the guide of mmWave-Radar-Interface-Control, we don't receive the IRQ of 2243. I check the SPI sequence and it is 16bit every cs toggle, it is written by the requirements and the timing is ok, but SPI_HOST_INTR don't change high, I don't know the reason.
I describe my step in detail: 1. after power on, we give one reset_n to PIN12(RESET), reset time is 2ms; 2. reset_n to high; 3. host send 0x1234 0x4321(SYNC);
4. next we configure AWR_DEV_CONFIGURATION_SET_SB as 32bit CRC. the configure data lists right picture.(in fact, we don't know if we understand it right, from the guide, we should wait for 
and 
, after power up, the IRQ should change high, then master will send two ASYNC event to host) but IRQ is always low and don't change high. so I have to enter step 4 to configure. could you give some suggestions to help us to solve it? thank you very much!
