[USB] Manage internal pull-up#1298
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fpistm merged 1 commit intostm32duino:masterfrom Feb 9, 2021
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On STM32L1xx, an internal pull-up resistor (1.5 kΩ) can be connected by software on the USB data + (DP) line. This internal pull-up resistor is enabled if the USB is not in power-down mode and if the USB_PU bit is set. Signed-off-by: Frederic Pillon <frederic.pillon@st.com>
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Tested with Nucleo L152RE. |
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On STM32L1xx, an internal pull-up resistor (1.5 kΩ) can be connected by software on the USB data + (DP) line.
This internal pull-up resistor is enabled if the USB is not in power-down mode and if the USB_PU bit is set.