cannot-read-max30003wing-board-using-spi-communication

[ray]

This discussion has been locked. I don't know why? and I don't know how to get it back.

devzone.nordicsemi.com/.../cannot-read-max30003wing-board-using-spi-communication

so, I made new discussion. sorry about that.

The answer to the last question.

Of course, We connected the ground pin between the NRF52840DK board and the MAX30003 board.

[Kenneth]

Can you try to measure with analog input instead of digitial? Is it possible that you are calling multiple nrf_drv_spi_transfer() without CSN toggling inbetween?

Kenneth

[ray]

Sorry, reply too late.

"analog input" mean is oscilloscope?

it is same result, not work well.

We'll be making our own boards on next week. and then We will post the results.

thank you

Regards,

ray