https://devzone.nordicsemi.com/f/nordic-q-a/63672/use-nrf52-spi-multi-instance-use-same-miso-mosi-sck-pin-and-different-ss-pinHi I want to declare 2 spi instances with only cs pin different. The reason for dividing the two is because the modes are different. The one declared above is executed, but the one declared below is blocked by the following function. (nrf_drv_spi_transferen-USTelligent Community 13Wed, 15 Jul 2020 01:40:15 GMThttps://devzone.nordicsemi.com/thread/260007?ContentTypeID=1Wed, 15 Jul 2020 01:40:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cb1c3c24-4e9d-4017-9060-62c8a5d98acdYonghun Song<p>Thank u~</p> <p>it works now</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/259837?ContentTypeID=1Tue, 14 Jul 2020 08:57:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:80423201-b4ed-4dd0-a42b-4f1eb13b51cfJared<p>Hi,</p> [quote user=""]The one declared above is executed, but the one declared below is blocked by the following function. (nrf_drv_spi_transfer)<br />[/quote] <p>&nbsp;This is because you use the same SPI pins (MOSI,MISO,SCK) for more than one instance. The product spec specifies that only one peripheral can drive a GPIO pin at a time. You should also use other pins for the second instance.&nbsp;</p> <p>regards</p> <p>Jared&nbsp;</p><div style="clear:both;"></div>