Hi,
I'll develop a adevice, using nRF51822; And I also have some device used nRF2401A, I want to know nRF51822 can communicate with nRF2401A, or not. I know nRF51822 is compatible with nRF24L series.
I think it's better if you avoid such address and workaround the bitswap... Long sequences of 1s or 0s in the address as well as 0x55 or 0xaa can confuse the devices.