Renesas M32R-FPU Manuel d'utilisateur télécharger pdf (Page 25)

M32R Debugger and Trace 25 Security Levels of the M32R Family

Flash Erase if Device is secured

How to manage Flash erase if Security Level 1 is activated and the security key code is unknown?

• Close all windows on the screen and perform a SYstem.up.

•Enter diag 0x3000 0xF5 and wait until erasing is ready.

• Enter the default Security Code and system up the debugger or

just system up the debugger (default Security Code is used implicitly).

Another way is to clear the flash memory of the CPU by using the instruction

…/unsecure.

Now the device is open with a cleared Flash RAM.

The JTAG clock must be limited to 1/2 of the M32 core clock.

Buffers, additional loads or high capacities on the JTAG/COP lines reduce the

debug speed.

Trace related options only in case the device provides Trace capabilities.

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Renesas M32R-FPU Manuel d'utilisateur Page 25