Figure 61. Properties For Semihosting In Stm32Cubeide- Librairies; Figure 62. Properties For Semihosting In Stm32Cubeide - STMicroelectronics STM32 Application Note

Printf debugging
Next, select MCU GCC Linker -> Miscellaneous while still in the Tool Settings tab.
Click the Add... button and enter -specs=rdimon.specs into the dialog box.
This add the linker flags in order to include the librdimon library.
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Figure 61. Properties for semihosting in STM32CubeIDE- Librairies

Figure 62. Properties for semihosting in STM32CubeIDE

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