SETUP_AW Register

Address

0x03

Description

The SETUP_AW register is used to configure the address width.

Contents

This table is copied from the nRF24L01 product specification (page 53).

Name
Bit
Reset Value
Type Description
Reserved 7 0 R/W Only ‘0’ allowed
Reserved 6 0 R/W Only ‘0’ allowed
Reserved 5 0 R/W Only ‘0’ allowed
Reserved 4 0 R/W Only ‘0’ allowed
Reserved 3 0 R/W Only ‘0’ allowed
Reserved 2 0 R/W Only ‘0’ allowed
AW 1:0 11 R/W RX/TX Address field width
’00’ – Illegal
’01’ – 3 bytes
’10’ – 4 bytes
’11’ – 5 bytes
LSByte is used if address width is below 5 bytes

Comments

The software driver uses 5-byte addresses by default.  This reduces the payload data rate because it makes the packet header longer, but it reduces the likelihood of address collisions on the noisy 2.4 GHz ISM band.

Every radio on the network must use the same address width.

Leave a Reply

Your email address will not be published. Required fields are marked *

ERROR: si-captcha.php plugin: GD image support not detected in PHP!

Contact your web host and ask them to enable GD image support for PHP.

ERROR: si-captcha.php plugin: imagepng function not detected in PHP!

Contact your web host and ask them to enable imagepng for PHP.