I'm using the BlueNRG-LP and want to enable "Readout Protection". From the reference manual RM0479 it can be enabled by writing the UserKey 0xAAAAAAAA to DATA0/1. In the RF-Flasher 4.3.5 Openocd readout_protection.cfg file writes the UserKey 0xFCBCECCC to DATA0/1. And in the Application note AN5471 it can be enabled via a Bootloader command. So my question is now which one is the correct?
