SPIM Transfer Data

[xdxing2013]

Hi, Support team,

When I use the SPI peripheral communicate with nrf24l01+,it's no data return in  m_rx_buf by using the API nrf_drv_spi_transfer(&spi,m_tx_buf,1, m_rx_buf, 3),.but when I  use the logic analysis it have data in MISO ,so what should I do?

[run_ar]

Hi,

Please make sure you have configured SPIM correctly and according to the nRF24L01+ documentation http://infocenter.nordicsemi.com/pdf/nRF24L01P_PS_v1.0.pdf#G1088230

Documentation for the SPI driver can be found here. Which SDK version are you using?

And why do you interface a nRF24L01+ from an nRF51? I assume you are aware the the nRF51 series supports the Enhanced Shockburst protocol?

[xdxing2013]

Hi,run_ar

It's done! Thank for you advance! I have found the reason why no rx_buf data,because of my mistake for connect the MISO pin to Pin26（it's a 32,768KHz crystal Pin ）;By the way ,I have a another question about sdk_config.h file,it's generated by some tools?  because i found this file have two tabs-Text Editor and Configuration Wizard,and how to generate my own sdk_config.h files? 

[run_ar]

You are not supposed to generate your own sdk_config.h file. In case you update from one SDK to another you might have to do a diff between the old version and the new one. But it should be sufficient to change the configuration. You can find more information about the SDK configuration header file here.

[xdxing2013]

So Thanks!