X-CUBE-RC-CALIB

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Internal oscillator calibration software expansion for STM32Cube

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Description

The X-CUBE-RC-CALIB Expansion Package describes how to measure and calibrate internal oscillators. It also describes which internal features are used for calibration or measurement.

Each oscillator trimming functionality is implemented in a separate file, so that users can easily select the file they need, without using the whole software package.

The X-CUBE-RC-CALIB Expansion Package is built on top of the STM32Cube HAL drivers.

For more details, refer to the application notes "How to calibrate an STM32L0xx internal RC oscillator" (AN4631), "How to calibrate STM32L4 Series microcontrollers internal RC oscillator" (AN4736) and "How to calibrate internal RC oscillators on STM32U5 Series" (AN5676) available on www.st.com.

  • All features

    • STM32L0 Series microcontrollers:
      • Calibrated oscillators: HSI16, MSI, HSI48
      • Measured oscillator: LSI
    • STM32L4 Series microcontrollers:
      • Calibrated oscillators: HSI16, MSI, HSI48 (only for STM32L432xx microcontrollers)
      • Measured oscillator: LSI
    • STM32U5 Series microcontrollers:
      • Calibrated oscillators: HSI16, MSI, HSI48
      • Measured oscillator: LSI
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