I am struggling to get any response from this device.
I am trying to read from register 0x00.
attached is the scope output from my clock and MOSI lines.
There are three bytes sent - 0x0B for read, 0x00 for the first register, and 0x00 to clock data in.
MISO never goes high. sometimes it shows a slight amount of noise that resembles the MOSI line but I am talking a couple of mVolts.
I have tried 150ohm resistors in line on all SPI lines.
Am I running too slow?
CS is permanently low as I am only talking to this device.
Can anyone see anything wrong with the timing? all voltages are around 3V.