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Renesas RH850: Using ICUM as a boot core and unable to download

23-Jul-2025

When the ICUM is enabled flash erase and program operations are not possible. ICUM-protected setup requires a custom procedure to perform a download. Note that disabling and re-enabling the ICUM is not necessary if a download files' image is unchanged.

Python scripts are available per request from the Support team.


Solution

Refer to winIDEA Help for more information. 

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