Stefano Bianciotto

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9 years, 5 months ago.

MAC address

Hello everybody, I am evaluating the mbed LPC1768 for a new project and I have a simple question about the MAC address. Does the module have a built-in unique MAC address or have I to preview on my board a MAC address EEPROM? Thank you for your attention.

Question relating to:

Last updated: 30 Jun 2020
Rapid Prototyping for general microcontroller applications, Ethernet, USB and 32-bit ARM® Cortex™-M3 based designs

1 Answer

Erik -
9 years, 5 months ago.

IIRC the LPC1768 board has a unique MAC address, but the unique address (at least the one used by mbed) is on the interface chip, not the LPC1768 itself.

You can get it using:

void mbed_mac_address(char *mac)

Accepted Answer

Thank you for your answer. Ok, then if I use the mbed module in a new project and I buy (let's say) 100 modules they are going to have 100 different MAC addresses already written in their interface chips, right?

posted by Stefano Bianciotto 03 Nov 2014

I just found this one: http://developer.mbed.org/forum/mbed/topic/972/. So for your mbed, yes it should be unique.

posted by Erik - 03 Nov 2014