https://devzone.nordicsemi.com/f/nordic-q-a/71304/master-spi-howtoI am an experienced developer but struggling to understand nRF9160. Where can I find .h files defining HW? Where can I find data sheets describing peripherals? My task is to create a Master SPI driver or to find one. Please give me hints that can guideen-USTelligent Community 13Thu, 04 Feb 2021 09:20:18 GMThttps://devzone.nordicsemi.com/thread/292843?ContentTypeID=1Thu, 04 Feb 2021 09:20:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ad4c920b-f61a-4522-8f99-a07dbfc28e84J&#248;rgen Holmefjord<p>Hi,</p> <p>You can find the&nbsp;<a title="nRF9160 Product Specification" href="https://infocenter.nordicsemi.com/topic/ps_nrf9160/nRF9160_html5_keyfeatures.html?cp=2_0_0">nRF9160 Product Specification</a>&nbsp;(datasheet) in our infocenter. The SPI Master peripheral is described under peripherals:&nbsp;<a href="https://infocenter.nordicsemi.com/topic/ps_nrf9160/spim.html?cp=2_0_0_5_12">SPIM — Serial peripheral interface master with EasyDMA</a>.</p> <p>The header files defining the HW is found in our <a href="https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-MDK">MDK</a>, also included in <a href="https://github.com/NordicSemiconductor/nrfx/tree/master/mdk">NRFX</a>. NRFX also includes a <a href="https://github.com/NordicSemiconductor/nrfx/blob/master/drivers/src/nrfx_spim.c">SPI Master driver</a> for the SPIM peripheral, you can find its <a href="https://infocenter.nordicsemi.com/topic/drivers_nrfx_v2.4.0/group__nrf__spim.html">API documentation here</a>.</p> <p>nRF9160 is supported through our Software Development Kit: nRF Connect SDK. You can find examples using the nrfx_spim driver in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/70105/how-to-use-spi-interface-in-a-zephyr-sample-example/288587#288587">this post</a>.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>