Raspberry Pi Pico 2 - RP2350 ARM Cortex M33 + RISC-V Hazard3

Description

Raspberry Pi Pico 2 is a development board based on the RP2350 microcontroller, designed with high performance and security in mind. Compared to the previous version, Pi Pico 2 is characterized by the use of Cortex M33 cores with a higher clock speed, two additional RISC-V cores, doubling the SRAM and memory. In addition, the second version of the iconic board introduces new security features and improved interface capabilities. Raspberry Pi Pico 2 offers a significant increase in performance and functionality while maintaining hardware and software compatibility with earlier models of the Raspberry Pi Pico series.

Advanced security features

The RP2350 system offers advanced security features based on Arm TrustZone for Cortex-M technology, including digitally signed boot, 8 KB of OTP antifuse memory for storing keys, SHA-256 acceleration, a hardware TRNG random number generator and fast error detectors. These features, along with the secure boot ROM, are well documented and available to all users, allowing professionals to seamlessly integrate the RP2350 and Raspberry Pi Pico 2 into their projects.

Kamami is the official distributor of Raspberry Pi minicomputers and dedicated accessories.

Pi Pico version comparison

MicroPython

MicroPython is a special version of the Python 3 programming language, prepared to run directly on embedded systems such as the Raspberry Pi Pico. The version prepared especially for the RP2350 microcontroller, supports REPL, an interactive shell that allows you to execute scripts, typing into the console and viewing the results of the program in it. Thanks to this technology, it is also possible to save the program in flash memory.

C/C++

To facilitate the programming of the RP2350 microcontroller in C / C ++, the Raspberry Pi Foundation has prepared an official SDK toolkit that can be integrated with popular IDEs such as Visual Studio Code or Eclipse. The entire environment configuration process is described in the Getting started with Raspberry Pi Pico document.

Uploading the program via the USB interface

The Raspberry Pi Pico can be programmed via the USB interface, it can be done in two ways.
The first is the USB mass storage mode, to program the board in this way, press and hold the BOOTSEL button, and then connect the board to the computer with a USB cable. The device will be recognized as mass memory to which you can upload the program in the same way as copying files to a pendrive. After uploading the program, the microcontroller will automatically reset and start the uploaded program. This method is suitable for uploading programs written in C / C ++ or for uploading the MicroPython interpreter.
The second way works only with programs written in MicroPython and requires prior loading of the interpreter using the first method. This method consists in saving the program layout transferred with REPL in the memory.

Programming/Debugging via SWD interface

When programming in C/C++, there is often a need to repeatedly test the program. Loading a program via USB requires repeating the procedure every time, disconnecting the board from the computer, pressing the button and connecting the board, and then finding the compiled program and copying it to memory. The whole thing takes quite a long time, but fortunately it can be simplified using an external programmer with SWD interface. Programming via SWD is much faster, you only need to connect the programmer once with a 3-pin connector and power supply e.g. via USB and you can upload programs directly from the IDE. In addition, you can debug the program in this way and efficiently find any errors in the code by running it line by line.

Features

• RP2350 microcontroller designed by Raspberry Pi
• Two ARM Cortex-M0+ cores clocked at up to 150 MHz and two additional RISC-V Hazard3 cores
• External flash memory: 4 MB
• RAM memory: 520 kB
• Pads for soldering goldpin connectors or direct soldering to the base board
• USB 1.1 operating in Host and Device modes
• Support for low-power and idle modes
• Drag&Drop programming in USB mass storage mode
• Support for SWD interface for programming and debugging
• 26 GPIO pins
• Extensive communication interfaces:
  
  • 2 x SPI
  • 2 x I2C
  • 2 x UART
  • 3 x 12-bit ADC
  • 24 PWM channels
  • 16 x PIO
• Advanced security features
  
  • Arm TrustZone for Cortex-M:
  • Digitally signed boot
  • 8 KB OTP antifuse memory SHA-256 acceleration
  • Hardware TRNG random number generator
  • Fast glitch detectors
• Built-in real-time clock (RTC)
• Floating-point accelerator
• Temperature sensor
• Power supply voltage: 1.8 – 5.5 V
• Operating temperature: -20°C ~ 85°C (recommended maximum temperature 70°C)
• Dimensions: 51 x 21 mm