https://devzone.nordicsemi.com/f/nordic-q-a/1857/pin-re-mappingHi I&#39;m going to use a module that uses nRF51422 and that has an adapter to be soldered as a SMD in a circuit to mimic the footprint of an AP2 module. The adapter only has 17 pins, so the vendor has mapped the I/O pins at will and I find myself withen-USTelligent Community 13Thu, 13 Mar 2014 23:51:09 GMThttps://devzone.nordicsemi.com/thread/8042?ContentTypeID=1Thu, 13 Mar 2014 23:51:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:daeb9759-e354-4efc-827e-644cc0661682Nestor Matas<p>Ok, thank you I&#39;ll try to go the route you point out then.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/8041?ContentTypeID=1Thu, 13 Mar 2014 13:06:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3500a1a8-5fa0-483d-835d-6ea95545a5eeOle Morten<p>This is absolutely correct; you can&#39;t renumber the GPIO pins, and the person you talked to on the workshop probably meant the fact that digital, serial interfaces of the chip are re-mappable to any pin on the chip (i.e. any pin can be used for UART, SPI, TWI). Working around this by wrapping it in a custom function is a good suggestion!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/8040?ContentTypeID=1Tue, 11 Mar 2014 23:52:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fae3ef2b-a3a8-4955-9897-b8f62734d9b6Dan Danknick<p>I believe you may have misunderstood the person at that workshop; the PPI allows you to route task endpoints to the GPIO of your choice but still, memory mapped GPIO P0.00 is on pin 4 of the QFAB part. Looking at Figure 16 of the nRF51 Series Reference Manual I don&#39;t see anything before OUT.0 which is what I think you were hoping for.</p> <p>Faced with your situation I would write a function named nestor_gpio_port_write() that performed all of the messy bit manipulation and eventually called nrf_gpio_port_write() to get things done.</p> <p>Dan</p><div style="clear:both;"></div>