RM2 with a NUCLEO-F429ZI

The RM2 is a breakout containing the Wi-Fi subsection of a Raspberry Pi Pico W (or Pico 2 W), that is, a CYW43439, related circuitry, and antenna.

Connect both modules as pin definitions in hal.h suggest, keep short wires

Signal	GPIO	CN7 pin		RM2 pin	RM2 signal
DATAPIN	PB5	13	───┐───────	9	DAT
MISOPIN	PB4	19	───┘
CLKPIN	PB3	15	───────────	8	CLK
CSPIN	PA4	17	───────────	10	CS
PWRPIN	PC7	11	───────────	11	WL ON

Signal	GPIO	CN8 pin		RM2 pin	RM2 signal
+3V3		7	───────────	12	3V3
GND		11	───────────	7	(-)