TMS320F28377S: Code Protection

Furkan Fehmi Sefiloglu

Part Number: TMS320F28377S

Hi Team,

Can you please check and advise with following request?

What kind of code or plugin does this code, which we prepared with Code Composer, need to protect the code, what should be done to reload the code to the processor after this protection? Can you help us with these issues?

Thanks in advance

Best Regards

Furkan Sefiloglu

over 4 years ago

0 JohnS over 4 years ago

TI__Guru**** 162895 points

Furkan,

Can you explain what you are looking for? F28377S does have secure memory zones and execute only memory. Are you looking for help in using these features? If so I am going to need to loop in the C2000 team.

https://e2e.ti.com/blogs_/b/behind_the_wheel/archive/2021/02/05/enabling-functionally-safe-and-secure-electric-automotive-powertrains-using-c2000-real-time-mcus

https://www.ti.com/lit/ml/swab007c/swab007c.pdf?ts=1614691504575&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTMS320F28377S

Regards,

John

0 Furkan Fehmi Sefiloglu over 4 years ago in reply to JohnS

TI__Expert 3118 points

Hi John,

Please see further updates below and advise how we can support here:

My question is actually very simple, I want the code written to the MCU not to be read by someone else.

Thanks in advance

Best Regards

Furkan Sefiloglu

0 JohnS over 4 years ago in reply to Furkan Fehmi Sefiloglu

TI__Guru**** 162895 points

Furkan,

Thanks. I have sent this over to the C2000 team as they will understand how the protection features of this device work.

Regards,

John

0 Furkan Fehmi Sefiloglu over 4 years ago

TI__Expert 3118 points

Hi C2000 Team,

Could you review this case so far?

Do you have any advises for us?

Thanks in advance

Best Regards

Furkan

+1 Vivek Singh over 4 years ago in reply to Furkan Fehmi Sefiloglu

TI__Guru** 115881 points

Hi Furkan,

Yes, we have security feature which addresses the usecase you mentioned. You need to refer the DCSM chapter of the TRM for the detail about this. At high level, user can secure any of flash sector or LSx RAM with 128bit password. Once locked, access to these secure resources will be only allowed by code running from same security zone (we have two security zone, Zone1 and Zone2). User can use their 128bit password to unlock the security and perform any operation which can be done only after unlocking the zone (e.g. updating the security setting in USER OTP).

Hope this helps.

Regards,

Vivek Singh

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28377S: Code Protection