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The data sheet recommends that the USB pull-up resistor be driven by a GPIO so that it can be controlled by software, but this is not mandatory. Hence, leave the choice so that CC253-based boards not using this option can build and work fine. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> |
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cdc-acm-descriptors.c | ||
usb-arch.c | ||
usb-serial.c | ||
usb-serial.h |