how to protect my redpitaya custom application

[epielettronica]

I need to protect my redpitaya custom application.
To do that I need to find in, redpitaya information, an univocal serial number
or alternatively external eeprom map to find free space in external i2c eeprom in which to save protection codes...
other method?
may you help me?

best regards,
Alessandro Maffei

[pavel]

The ZYNQ chip has a unique identifier called DNA. Here is how it's used by the Red Pitaya ecosystem:
https://github.com/RedPitaya/RedPitaya/ ... a_hk.v#L59
https://github.com/RedPitaya/RedPitaya/ ... n.cpp#L412

I also have a small IP core that can be also used to read the DNA identifier :
https://github.com/pavel-demin/red-pita ... eader_v1_0

[Nils Roos]

If your plan is to achieve access control on a per-device basis, the DNA value is the best option.

For the record, as of now not much of the space in the external eeprom is allocated. It contains the calibration settings from 0x0000 - 0x0040 and the factory calibration from 0x1c00 - 0x1c40.