Difference between revisions of "STM32 High Speed USB"
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[[File:STM32F4xx USB HS Pinout.png|600px]] | [[File:STM32F4xx USB HS Pinout.png|600px]] | ||
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| + | == Clock == | ||
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| + | To save a crystal, the STM32F4xx can be driven by a 24 MHz crystal, which is then outputted on MCO1: | ||
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| + | [[File:24 MHz MCO1.png|800px]] | ||
Revision as of 03:36, 2 February 2021
A number of the STM32F4xx devices are equipped with two USB ports, one FS (Full Speed) and one HS (High Speed). The HS port has a built-in FS PHY, but to achieve HS, an external PHY is necessary.
Enabling USB HS port in Stm32CubeMX reveals the pinpout:
Clock
To save a crystal, the STM32F4xx can be driven by a 24 MHz crystal, which is then outputted on MCO1:
