Some questions for MAC address of nRF7002 companion IC

[Jeffery]

Hi

1. 

A. nRF7002 DK(NRF5340+NRF7002)

B. Our PCBA(NRF5340+NRF7002)

We found same application code flash to both. Sample A can work. Sample B can't work and stuck

at error initially. The log shows empty MAC address. So, for new NRF7002, the job to program

MAC address to OTP belongs to manufacturer side? Or, Nordic can fill the MAC address at OTP before shipping?

2.

About the MAC address of nRF7002, is it necessary to apply in Wifi alliance in advance?

We cannot find these kind of information as similar as MAC address in BLE SIG. Something as public or private address.

Jeffery

[dejans]

Hi Jeffery,

We found same application code flash to both. Sample A can work. Sample B can't work and stuck

at error initially. The log shows empty MAC address. So, for new NRF7002, the job to program

MAC address to OTP belongs to manufacturer side? Or, Nordic can fill the MAC address at OTP before shipping?

Which application did you flash to both boards A and B?
There is documentation regarding OTP programming and ficr programming.

About the MAC address of nRF7002, is it necessary to apply in Wifi alliance in advance?

Can you rephrase your question? What do you want to apply for?

Best regards,
Dejan

[Jeffery]

1.

About Q1, if new nRF7002 is without MAC address at OTP memory, it means extra station of production line is necessary to

program MAC address. So, can Nordic ship nRF7002 IC with MAC address? Same as NRF52 series, it already had MAC address in

its FICR.

EX:

Sation1: Flash radio test sample to nrf5340.

              Run ""wifi_radio_ficr_prog otp_write_params 0x120 0x0036CEF0 0x4A00" at UART to store address F0:CE:36:00:00:4A at

              nRF7002.

Station2: 2nd flashing action. Flash real application code.

2.

Like Q1, we can run ""wifi_radio_ficr_prog otp_write_params 0x120 0x0036CEF0 0x4A00" at UART to store address

F0:CE:36:00:00:4A at nRF7002.

About the value F0:CE:36:00:00:4A, can we decide it by ourselves? Or, we shall get permission of WiFi alliance to use it?

Any rule of policy to WiFi MAC address content and format?

Similar to Bluetooth MAC address, it defines public and private MAC address, Byte1 is different between both.

Jeffery

[dejans]

Hi Jeffery,

We only assign MAC addresses for products, i.e. kits. ICs are shipped without MAC addresses, allowing you to utilize your own company identity in the MAC addresses. MAC addresses are administered by IEEE. You can refer to this webpage - MAC addresses. It is not necessary to program MAC address in OTP, but a valid MAC address is required for a proper interface operation. You can refer to program MAC address for information how to program MAC address. You can also use this alternative method if MAC address is not programmed in OTP.

Best regards,
Dejan