How do I use CCP security?
The following is a simple example of how to set up a model with CCP security. This example uses OpenECU Calibrator as the calibration tool.
First, include in your model a pcp_CCPSecurity block:
key_validator is the name of the key validator function and is described in detail in the user guide.
Here is the complete source code for key_validator.c:
#include "openecu.h" BOOL key_validator(const U8 privilege_level, const U8 *const seed, const U8 *const key, const U8 key_size) { /* Ignore key_size, get 6 bytes in CCP v2.1 but only 4 typically relevant */ return (seed[0] == key[3] && seed[1] == key[2] && seed[2] == key[1] && seed[3] == key[0] ); }
In the model, this file will need to be added as custom code; e.g. in R2008b:
In OpenECU Calibrator, the workspace will need to be set up so that the CCP protocol has the seed/key enabled, e.e. using the 'own code' security option like this:
Doing all this, one can modify calibrations and reflash, but only with security turned on.
. If you have further questions, feel free to contact OpenECU support.Copyright © 2022 OpenECU, All rights reserved