rcsim commented on code in PR #11276: URL: https://github.com/apache/nuttx/pull/11276#discussion_r1409989755
########## Documentation/platforms/arm/rp2040/boards/seeed-xiao-rp2040/index.rst: ########## @@ -0,0 +1,98 @@ +======================== +Seeed Studio Xiao RP2040 +======================== + +The `Seeed Studio Xiao RP2040 <https://wiki.seeedstudio.com/XIAO-RP2040/>`_ is a general purpose board supplied by +Seeed Studio and it is compatible with the Raspberry Pi RP2040 ecosystem as they share the same RP2040 chip. + +.. figure:: seeed-xiao-rp2040.jpg + :align: center + +Features +======== + +* RP2040 microcontroller chip +* Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz +* 264KB of SRAM, and 2MB of onboard Flash memory +* 11 digital pins, 4 analog pins, 11 PWM Pins +* 1 I2C interface, 1 UART interface, 1 SPI interface, 1 SWD Bonding pad interface +* USB Type-C interface +* 1 user LED, 1 power LED, two LEDs for serial port downloading, 1 RGB LED +* 1 RESET button, 1 BOOT button + +Serial Console +============== + +By default a serial console appears on pins 6 (TX GPIO0) and pin 7 +(RX GPIO1). This console runs a 115200-8N1. +The board can be configured to use the USB connection as the serial console. + +LEDs +==== + +There are 2 LEDs available for user: + +- A RGB LED connected to GPIO16 (PIN_LED_G), GPIO17 (PIN_LED_R), GPIO25 (PIN_LED_B). +- A NeoPixel RGB LED connected to GPIO11 (NEOPIXEL_POWER) and GPIO12 (PIN_NEOPIXEL). + +Buttons +======= + +There are 2 buttons available: + +A RESET button and a BOOT button, which if held down when power is first +applied to the board, will cause the RP2040 to boot into programming +mode and appear as a storage device to a computer connected via USB . +Saving a .UF2 file to this device will replace the Flash ROM contents +on the RP2040. + + +Pin Mapping +=========== +Pads numbered anticlockwise from USB connector. + +===== ========== ========== +Pad Signal Notes +===== ========== ========== +0 GPI26 D0/A0 +1 GPI27 D1/A1 +2 GPI28 D2/A2 +3 GPI29 D3/A3 +4 GPIO6 D4/SDA +5 GPIO7 D5/SCL +6 GPIO0 Default TX for UART0 serial console +7 GPIO1 Default RX for UART1 serial console/CSn +8 GPIO2 D8/SCK +9 GPIO3 D10/MOSI +10 GPIO4 D9/MicroSD +11 3V3 Power output to peripherals +12 Ground +13 VIN +5V Supply to board +===== ========== ========== + +Power Supply +============ +For general I/O pins: + +Working voltage of MCU is 3.3V . Voltage input connected to general I/O pins Review Comment: Hi @hartmannathan , It has been fixed. Thanks -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
