circuitpython/ports/stm/peripherals/stm32l4
Matthew McGowan e2c6cf5929 fix: Increases drive strength of 32kHz external crystal, in line with calculations specified in ST AN2867 sections 3.3, 3.4, and STM32L4 datasheet DS12023 Table 58. LSE oscillator characteristics.
The drive strength RCC_LSEDRIVE_LOW is marginal for the 32kHz crystal oscillator stability, and RCC_LSEDRIVE_MEDIUMLOW meets the calculated drive strength with a small margin for parasitic capacitance.
2023-02-28 14:34:10 -08:00
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stm32l4r5xx style(swan_r5): pre-commit whitespace style changes 2021-09-28 18:52:03 -07:00
clocks.c fix: Increases drive strength of 32kHz external crystal, in line with calculations specified in ST AN2867 sections 3.3, 3.4, and STM32L4 datasheet DS12023 Table 58. LSE oscillator characteristics. 2023-02-28 14:34:10 -08:00