Where is my hex file on STM32?
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On STM32 there isn’t a special “HEX storage” on the chip—your .hex file is generated on your PC by the build toolchain , and its location depends on the IDE/build config. If you use STM32CubeIDE (most common) Build Debug → typically here: <your_project>/Debug/ Example: ...\workspace\<project>\Debug\<project>.hex Build Release → typically here: <your_project>/Release/ Important: CubeIDE always creates an .elf . The .hex/.bin may not appear unless enabled. Enable it in CubeIDE: Project Properties → C/C++ Build → Settings → MCU Post build outputs → check “Convert to Intel Hex” (and/or Bin). If you use Keil µVision Usually in: <project>\Objects\ (or whatever you set in Options for Target). If you use IAR EWARM In the project output directory you configured (often under Debug/Exe or similar), depending on settings. Quick way to find it (any IDE) Search your project/workspace folder for: *.hex .