Hello everyone!
I am struggling with valid communication via SPI to MP6606.
From HW part all voltage levels looks good, but sending in the loop 8-Bit transaction doesn’t return any SDO signal.
SPI settings:
- frequency: ~125kHz
- CPOL = 0 / CPHA = 0
- nSCS is non-Automatic (manual selection)
- Data to send in SPI: 0x30
Voltages:
- VIN = ~12.3V
- VCLAMP = 11.99V
- RESET, ENBL = 5.0V
- OUT1-OUT8 = 12.31V
Please, review my inputs and recommend what could be a problem.
Thank you in advance!
Diagrams of signals:
Please, be aware that RISING edge of nSCS is set after 1ms (manual chip select), but not shown on the diagram.
