nRF24L01+ Address byte order

[Carlos Cuevas]

Hello, I would like to know if the adress byte that is transmitted after the preamble is the MSB or LSB.

I've read the datasheet's page 28 and it's not very clear, it just says [b]"Figure 5.shows the packet format with MSB to the left."[/b]

I've also read www.nordicsemi.com/.../How-to-choose-an-address and it says: "First byte of the address should not start with 0x55.. or 0xAA.. as this can be interpreted as part of a preamble, causing an address mismatch for the rest of the address." but still isn't clear if "First byte of the address" is the MSB or LSB of the address.

Hope somebody could answer my question. Thanks.

[Håkon Alseth]

Hi,

If you set your address in firmware to: E3 59 59 59 53

The way it goes over the air is: 53 59 59 59 E3

The last byte you set in firmware is the first one to go on-air. This byte should not be 0x00/0xFF/0x55/0xAA.

Best regards Håkon