2024新品 Raspberry Pi Pico 2 高性能微控制器板 RP2350 開發板
Raspberry Pi Pico是基於Raspberry Pi RP2350微控制器芯片的微控制器板。它被設計為RP2350的低成本但靈活的開發平台
Raspberry Pi Pico 2 is Raspberry Pi Foundation's update to their popular RP2040-based Pico board, now built on RP2350: their new high-performance, secure microcontroller. With a higher core clock speed, double the on-chip SRAM (512KB), double the on-board flash memory (4MB!), more powerful Arm M33 cores, new security and low-power features, and upgraded interfacing capabilities, the Raspberry Pi Pico 2 delivers a significant performance and feature boost while retaining hardware and software compatibility with earlier members of the Raspberry Pi Pico series.／Raspberry Pi Pico 2 是 Raspberry Pi 基金會對其流行的基於 RP2040 的 Pico 板的更新，現在基於 RP2350：他們的新型高效能、安全微控制器。憑藉更高的核心時脈速度、雙倍的片上SRAM (512KB)、雙倍的板載快閃記憶體(4MB!)、更強大的Arm M33 核心、新的安全性和低功耗功能以及升級的介面功能， Raspberry Pi Pico 2 提供了顯著的效能和功能提升，同時保留了與 Raspberry Pi Pico 系列早期成員的硬體和軟體相容性。
The unique dual-core, dual-architecture capability of RP2350 allows users to choose between a pair of industry-standard Arm Cortex-M33 cores and a pair of open-hardware Hazard3 RISC-V cores. You can use either Arm or RISC-V cores, so this is a great way to dabble in RISC-V development with an affordable board that has lots of peripherals. The M33 has an FPU, and is 'basically' 2x as fast as the M0+ of the RP2040 when we speed-tested it.／
RP2350 獨特的雙核、雙架構功能允許使用者在一對行業標準的 Arm Cortex-M33 內核和一對開放硬體 Hazard3 RISC-V 內核之間進行選擇。您可以使用 Arm 或 RISC-V 內核，因此這是使用具有大量外設的經濟實惠的板子涉足 RISC-V 開發的好方法。M33 有一個 FPU，當我們對其進行速度測試時，它“基本上”是 RP2040 的 M0+ 的 2 倍。
Not only is the Pico 2 twice as fast, it has twice as much RAM, 520KB compared to 264KB. The Pico also has twice as much FLASH memory, 4MB instead of 2MB, which will make it a much better board for CircuitPython usage where the internal memory is used to store files. There's also one more PIO blocks (3 blocks with 4 state machines apiece, rather than 2) so you can do even more pin twiddling at once. For folks who want to use the RP2350 to generate high frequency output signals like DVI display output, you can use the HSTX (high speed transmission) peripheral rather than PIO.／Pico 2 不僅速度快了一倍，而且記憶體容量翻了一番，為 520KB，而 264KB 是 264KB。Pico 還具有兩倍的 FLASH 記憶體，4MB 而不是 2MB，這將使其成為 CircuitPython 使用的更好板，其中內部記憶體用於儲存檔。還有一個 PIO 模組（3 個模組，每個模組有 4 個狀態機，而不是 2 個），因此您可以一次執行更多的引腳旋轉。對於想要使用 RP2350 生成 DVI 顯示輸出等高頻輸出信號的人來說，您可以使用 HSTX（高速傳輸）外設而不是 PIO。
For customers who wanted a more secure microcontroller for product design, the RP2350 provides a comprehensive security architecture, built around Arm TrustZone for Cortex-M, and incorporating signed boot, 8KB of antifuse OTP for key storage, SHA-256 acceleration, a hardware TRNG, and fast glitch detectors. These features, including the secure boot ROM, are extensively documented and available to all users without restriction: this transparent approach, which contrasts with the “security through obscurity” offered by legacy vendors, allows professional users to integrate RP2350, and Raspberry Pi Pico 2, into products with confidence. ／
對於需要更安全的微控制器進行產品設計的客戶，RP2350 提供了全面的安全架構，該架構圍繞Cortex-M 的Arm TrustZone 構建，並包含簽名啟動、用於密鑰存儲的8KB 反熔絲OTP、 SHA-256 加速、硬體TRNG和快速毛邊檢測器。這些功能（包括安全啟動 ROM）已被廣泛記錄並可供所有用戶不受限制地使用：這種透明的方法與“通過傳統供應商提供的「obscurity」允許專業用戶自信地將 RP2350 和 Raspberry Pi Pico 2 整合到產品中。
Programmable in C / C++ and CircuitPython/MicroPython, and with detailed documentation, Raspberry Pi Pico 2 is the ideal microcontroller board for enthusiasts and professional developers alike. It makes an excellent upgrade to the RP2040, with lots of back-compatibility and some excellent upgrades.／Raspberry Pi Pico 2 可使用 C / C++ 和 CircuitPython/MicroPython 進行編程，並配有詳細的文檔，是愛好者和專業開發人員的理想微控制器板。它對 RP2040 進行了出色的升級，具有大量的向後相容性和一些出色的升級。
【Technical Details】：
Pico 2 Specifications：
- Form factor: 21 mm × 51 mm
- CPU: Dual Arm Cortex-M33 or dual RISC-V Hazard3 processors @
150MHz - Memory: 520 KB on-chip SRAM; 4 MB on-board QSPI flash
- Interfacing: 26 multi-purpose GPIO pins, including 4 that can be used for ADC
- Peripherals:
- 2 × UART
- 2 × SPI controllers
- 2 × I2C controllers
- 24 × PWM channels
- 1 × USB 1.1 controller and PHY, with host and device support
- 12 × PIO state machines
- Input power: 1.8–5.5V DC
- Operating temperature: -20°C to +85°C
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