...symbol nrfx_ppi_free_all (referred from nrf_drv_ppi.o...
.\_build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol nrfx_ppi_free_all (referred from nrf_drv_ppi.o). I'm trying to join two programs that work well by themselves, a saadc program that shows the force sensor value in the serial, and a BL...