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  • [SOLVED] Unable to reprogram STM32 flash without full erase

    kyle.berger - - J-Link/Flasher related

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    I am unable to reprogram an STM32 microcontroller unless I perform a full erase before programming. The below code uses CLion, but the same error also happens using the command line version of arm-none-eabi-gdb and JLinkGDBServer. GDB: arm-none-eabi-gdb (also occurs with CLion's bundled GDB) Compiler: arm-none-eabi-gcc and arm-none-eabi-g++ Microcontroller: STM32L433CC (also happens with STM32F411RC) I am using USB for this. When I use ethernet, I get an error like "Failed to download RAMCode") …