Hi,
in our project we are using the Cypress micro CY8C4024LQI-S411 (4000S Family).
In our production line we use the Segger Flash programmer (Jlink software) for programming the boards.
We would like to protect the code from reading after programming (chip protection).

We know that this is possible by following some steps using Cypress software (PSoc Creator and PSoc Programmer).
Is it possible to do the same using the Segger Flash Programmer?
Thank you very much for your help

Francesco

Hi Nino,

thank you very much for your reply.

Following your indication we tried to implement the Read Protection sequence in Exit Steps.

The board is programmed correctly but the .hex file is still readable (the chip protection seems not have effects).

Please could you tell us if the sequence is correct? (See image in attachment)ExitSteps.zip



For protection register we refer to the following documentation:

cypress.com/file/230701/downloadPag. 216 20.5.8



From the following we understood how to configure Clock API (as requested in the previous document) before setting protection register:

github.com/ghent360/PSOC4_swd_…/FX2LP/ProgrammingSteps.c

line 157



In the end we found register addresses (CPUSS_SYSREQ and CPUSS_SYSARG) from the following:

github.com/ghent360/PSOC4_swd_…/FX2LP/ProgrammingSteps.h



We “translated” all the previous information in Exit Sequence Steps but, as said, at the end no Code Read protection is Achieved.



Please, could you help us or just say if our procedure is correct?

Thank you in advance and receive our Best Regards


P.S.: In production phase we will convert all the instructions in a batch file using JLink from command line.