rcsim commented on code in PR #11276: URL: https://github.com/apache/nuttx/pull/11276#discussion_r1409990531
########## Documentation/platforms/arm/rp2040/boards/seeed-xiao-rp2040/README.txt: ########## @@ -0,0 +1,96 @@ +README +====== + +This directory contains the port of NuttX to the Seeed Studio Xiao RP2040. +See ttps://wiki.seeedstudio.com/XIAO-RP2040/ for information about Seeed +Studio Xiao RP2040. + +NuttX supports the following RP2040 capabilities: + - UART (console port) + - GPIO 0 (UART0 TX) and GPIO 1 (UART0 RX) are used for the console. + - I2C + - SPI (master only) + - DMAC + - PWM + - ADC + - Watchdog + - USB device + - MSC, CDC/ACM serial and these composite device are supported. + - CDC/ACM serial device can be used for the console. + - PIO (RP2040 Programmable I/O) + - Flash ROM Boot + - SRAM Boot + - If Pico SDK is available, nuttx.uf2 file which can be used in + BOOTSEL mode will be created. + - Persistent flash filesystem in unused flash ROM + +NuttX also provide support for these external devices: + + - BMP180 sensor at I2C0 (don't forget to define I2C0 GPIOs at "I2C0 GPIO pin assign" in Board Selection menu) + - INA219 sensor / module (don't forget to define I2C0 GPIOs at "I2C0 GPIO pin assign" in Board Selection menu) + - WS2812 smart pixel support + +There is currently no direct user mode access to these RP2040 hardware features: + - SPI Slave Mode + - SSI + - RTC + - Timers + +Installation +============ + +1. Download Raspberry Pi Pico SDK and update submodule(cyw43-driver) + + $ git clone -b 1.4.0 https://github.com/raspberrypi/pico-sdk.git + $ cd pico-sdk + $ git submodule update --init --recursive lib/cyw43-driver + +2. Set PICO_SDK_PATH environment variable + + $ export PICO_SDK_PATH=<absolute_path_to_pico-sdk_directory> + +3. Configure and build NuttX + + $ git clone https://github.com/apache/nuttx.git nuttx + $ git clone https://github.com/apache/nuttx-apps.git apps + $ cd nuttx + $ make distclean + $ ./tools/configure.sh seeed-xiao-rp2040:nsh + $ make V=1 + +4. Connect Seeed Studio Xiao RP2040 board to USB port while pressing BOOTSEL. + The board will be detected as USB Mass Storage Device. + Then copy "nuttx.uf2" into the device. + (Same manner as the standard Pico SDK applications installation.) + +5. To access the console, GPIO 0 and 1 pins must be connected to the + device such as USB-serial converter. + + `usbnsh` configuration provides the console access by USB CDC/ACM serial + devcice. The console is available by using a terminal software on the USB + host. + +Defconfigs +========== + +- nsh + Minimum configuration with NuttShell + +License exceptions +================== + +The following files are originated from the files in Pico SDK. +So, the files are licensed under 3-Clause BSD same as Pico SDK. Review Comment: Hi @hartmannathan , It has been fixed. Could you check if it is ok? 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
