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STM32F429II Release Startup Code Error?

Hello,

My Project becomes bigger and bigger, and now i have a problem with the release build of my project.

CPU STM32F429II (2 MBytes Flash, 0x08000000-0x081FFFFF), MDK ARM 4.74 (i have tried 5.12 too).

The debug build of my software runs perfectly, but the release build crashes in the startup code in function __decompress. Bus fault address is 0x08200000, PRECISERR and BFARVALID are set.

Any idea for this?

Martin