microzig/raspberrypi-rp2040

Examples for the BSP raspberrypi-rp2040

Demos

All demos that run on the RaspberryPi Pico can also be run on the RP2040-Plus without modification.

• adc on RaspberryPi Pico
  This example takes periodic samples of the temperature sensor and prints it to the UART using the stdlib logging facility.
• blinky on RaspberryPi Pico
  Blinks the LED on the board.
• blinky core1 on RaspberryPi Pico
  Blinks the LED on the board using the second CPU.
• flash program on RaspberryPi Pico
  Writes and reads data into the flash.
• gpio clk on RaspberryPi Pico
  Enables a CLKOUT mode on GPIO0.
• i2c bus scan on RaspberryPi Pico
  Prints all I²C devices on UART0 (Pin 0,1) attached to I²C on SCL=GPIO4, SDA=GPIO5.
• pwm on RaspberryPi Pico
  Slowly blinks the LED on the Pico with a smooth blinking using PWM.
• random on RaspberryPi Pico
  Showcases how to use the internal random generator.
• spi master on RaspberryPi Pico
  Showcases how to use the SPI host controller.
• squarewave on RaspberryPi Pico
  Showcases how to use the PIO to emit a basic square wave.
• uart on RaspberryPi Pico
  Showcases how to use the UART together with std.log.
• usb device on RaspberryPi Pico
  A really basic example for a raw USB device. You can use the Python 3 script scripts/usb_device_loopback.py to test the USB device.
• usb hid on RaspberryPi Pico
  A really basic example how to implement a USB HID device. You can use the Python 3 script scripts/hid_test.py to test the HID device.
• ws2812 on RaspberryPi Pico
  Showcases how to control one WS2812 LED attached to GPIO23.
• tiles on RP2040-Matrix
  Showcases how to control the LED matrix on the development board to do a simple color flipper effect.

Flashing

You can flash all examples using either your file browser by dragging the example .uf2 file from zig-out/firmware/ to the directory.

Or you can use picotool to flash a uf2 file:

[user@host] raspberrypi-rp2040/ $ picotool load -x zig-out/firmware/${file}.uf2
Loading into Flash: [==============================]  100%

The device was rebooted to start the application.
[user@host] raspberrypi-rp2040/ $