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Hello. I double checked and couldn't really find any instance where we would randomly change these bytes. Is JLinkExe looking just at these option bytes or others also? Bits 7:0 RDP: Read protection level0xAA: Level 0, read protection not active0xCC: Level 2, chip read protection activeOthers: Level 1, memories read protection active I had a mass erase once and just before I had printed the RDP field and it was properly set at 0xAA.
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Hello. Here is a log file for when this happens. Thank you for your help.
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I'm using a JLink Segger to flash my STM32L4A6 MCU. Most of the time it works perfectly fine but sometimes I don't know why, a mass erase is triggered. Source Code (34 lines)This is annoying because well I'm storing important stuff in flash that I need to restore every time it happens. I know there is a hook to prevent the mass erase for the Windows version but it was promised also for Linux, is it available? More importantly, I'm wondering if this issue hides a problem I have with my code perha…