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The STM32L073RZ provides a full speed USB device controller, but the Nucleo-L073RZ board support did not enable it and no configuration exercised it. Add the pieces required to run USB device mode on this board: - Add the USB device pin definitions to the STM32L0 pin map. - Provide board level pull-up control using the embedded DP pull-up in USB_BCDR, and register the CDC/ACM class at boot when it is selected. - Add a usb-cdc configuration that presents an NSH console on USART2 and a CDC/ACM serial device on USB. The 48MHz clock for the controller is supplied by HSI48 trimmed from the USB start of frame packet, which is the crystal-less USB configuration already described by this board's board.h. Assisted-by: GitHub Copilot:claude-opus-5 Signed-off-by: jsanchez-2g <jsanchez@2g-eng.com> |
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| avr | ||
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| dummy | ||
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| or1k | ||
| renesas | ||
| risc-v | ||
| sim | ||
| sparc | ||
| tricore | ||
| x86 | ||
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| xtensa | ||
| z16 | ||
| z80 | ||
| CMakeLists.txt | ||
| Kconfig | ||