https://devzone.nordicsemi.com/f/nordic-q-a/30861/nrf51824-3-channel-spiHello All, We are working on automotive application can i use 3xspi in nrf51824. i.e is it possible to configaure 3 masters in nRF51824 ? thanks in advance pavanen-USTelligent Community 13Mon, 26 Feb 2018 09:47:58 GMThttps://devzone.nordicsemi.com/thread/121943?ContentTypeID=1Mon, 26 Feb 2018 09:47:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:289b7535-4671-4db2-be77-8adf45856cbbJ&#248;rgen Holmefjord<p>Hi Pavan,</p> <p>As given in the <a href="http://infocenter.nordicsemi.com/pdf/nRF51824_PS_v1.0.pdf#page=28">product specifications v1,0 for nRF51824</a>, there is only two serial instances (base address&#39;) available for SPI master/SPI slave/TWI on the nRF51824. This means that you can only run two instances at the same time. It is possible to disable one SPI instance in order to setup another instance at any time. The pin crossbar feature enables you to run the SPI interface on any avaiable GPIO. Note that you can also connect multiple SPI slave devices to one bus, and control which device is interfaced using the chip/slave select pin.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>