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Hi All,
I've tried to replicate the Eval Kit as closely as possible. I'm able to get that working (and watch the spi channels to confirm), but on my board, I cannot get the SPI channel to do anything. I've looked at all the basics and seems that I'm using the part correctly (suspect a HW issue). I can send the correct SPI (MOSI) commands to read the ID register, but MISO doesn't move. What is the minimum needed to get SPI working?
I've got CLKSEL, RESET, PWDN tied high. Spi is connected to a 3.3v system (nRF52). I can include the schematic if necessary - but not sure what to look at next.
Could use a pointer or two.
thanks
--Daniel
H Alex.
1). no - no reads. Dout does not toggle
2). I'll check the startup sequence again - I'll check these signals tonight.
3). not sending SDATAC command. Is this required prior to sending a rreg?
4). pdf of schematic enclosed.
5). Frequency of SPI is currently 500khz Confirmed that min's for pulse width are ok.