circuitpython/ports/esp32/boards/GENERIC_C3_USB/sdkconfig.board
Patrick Van Oosterwijck a66bd7a489 esp32/boards: Add GENERIC_C3_USB board with USB serial/JTAG support.
Add a new board type for ESP32-C3 revision 3 and up that implement the USB
serial/JTAG port on pin 18 and 19.  This variant uses the USB serial for
programming and console, leaving the UART free.

- Pins 18 and 19 are correctly reserved for this variant.  Also pins 14-17
  are reserved for flash for any ESP32-C3 so they can't be reconfigured
  anymore to crash the system.
- Added usb_serial_jtag.c and .h to implement this interface.
- Interface was tested to work correctly together with webrepl.
- Interface was tested to work correctly when sending and receiving
  large files with ampy.
- Disconnecting terminal or USB will not hang the system when it's
  trying to print.
2021-08-31 00:12:41 +10:00

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CONFIG_ESP32C3_REV_MIN_3=y
CONFIG_ESP32C3_REV_MIN=3
CONFIG_ESP32C3_BROWNOUT_DET=y
CONFIG_ESP32C3_BROWNOUT_DET_LVL_SEL_7=
CONFIG_ESP32C3_BROWNOUT_DET_LVL_SEL_4=y
CONFIG_ESP32C3_BROWNOUT_DET_LVL=4
CONFIG_ESP_CONSOLE_UART_DEFAULT=
CONFIG_ESP_CONSOLE_USB_CDC=
CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG=y