Hello,
As always, I breadboard new devices to make sure I understand how to use them before committing to a new design.
As a first communications test I attempt to read registers. Using SPI, MODE1 MSB 1st., 1MHz.
I do not seem to be able to do this with the ADS1259 device.
I have tried different OP code combinations to no avail.
As an example, I have attached a typical screen shot of a register request (0x20) followed by OP code (0x01).
The Dout goes high as a response. I expect to see a few zeros in the output for register 0 or register 1.
Have tried 1st OP codes 0x21, 0x22....2nd OP codes of 0x00,0x01,0x02.
As another approach, I did a "manual" implementation of SPI by assigning and manipulating IO pins to simulate SPI functionality.
(this usually helps if I am doing something wrong or if there is a timing problem with an SPI library.)
Still no response.
Any thoughts on what I may be doing wrong?
Thank you.
