Serial number in nRF24le1

[Gustav]

Is it possible to protect part of the memory of nRF24le1, in such a way, that it can be used for a serial number?

For my application, it would be beneficial to be able to update the firmware, without changing the original serial number.

To put it in other words: "I need 32 bytes, that can not be changed by the customer"....

I know, that there is a check box with "block readback of mainmemory" in nRFgo Studio under "advanced settings". And that could be part of the solution, but that does not prevent the serial number from being overwritten, when the firmware is updated.

[Hung Bui]

@Gustav: You can think of using protected area in flash. Please have a look at section 6.3.6 and 6.3.2.1 in the nRF24LE1 Spec.

[Hung Bui]

@Gustav: I have to correct myself. After checking around with my colleague, seems that it's not possible to write to the infopage from the MCU. It's clearly mentioned in the Product Spec for the nRF24LU1P, but not the nRF24LE1 so it made me confused.

The only part in the spec that implied the MCU can't write to infopage is: "The MCU can perform erase page and write operations to the unprotected part and the data part of the flash main block" => not the infopage.