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L2 R2 S4: RaspberryPi 133MHz Cortex-M0 Dual Core MCU (RP2040)

Home Page: https://www.soc.xin/RP2040

CMake 0.99% C 34.76% Rust 62.82% Assembly 0.05% Shell 0.07% C++ 1.03% Batchfile 0.15% Python 0.13%
cortex-m0 qitas dual-core mcu xip arduino micropython rp2040 raspberrypi qfn56

rp2040's Introduction

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RP2040 是一款Cortex M0+ 双核MCU,运行频率为 133 MHz (极端情况下可超频到1GHz)

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关键特性

  • 133MHz Cortex-M0+ Dual Core
  • 264KB RAM + 256KB Flash + 16MB QSPI Flash
  • 2 × UART, 2 × SPI , 2 × I2C
  • 16 × PWM
  • USB1.1 OTG with UF2
  • QFN56 (7*7mm), 30 GPIO, 其中的4个可以用于模拟输入
  • 8 × PIO可以支持多种IO标准
    • DPI/VGA (利用电阻网络)
    • 8080/6080并行接口
    • SPI/DSPI/QSPI
    • I2C
    • I2S
    • SDIO
    • UART

本仓库的目的在于整合所有相关资源,提供高效可靠的开发环境和踩坑指南。

软件开发可使用平台platform-rp2040

2021年1月发布的RP2040包含两个子系列:

  • 支持USB的RP2040xxU系列
  • 不支持USB的RP2040xxN(1.8V-3.6V)/RP2040x4NR(1.8V-5.5V)

采用TSMC 40nm制程工艺,芯片带有4ch 12-bit 500Ksps ADC,精度优于ESP32,可替换ATmega328p,广泛应用于各种外设驱动和通用控制场景。

性价比非常高,价格介于STM32G030C8T6(¥4.14)STM32G070RBT6(¥5.07)之间,开源资源丰富,在Arduino和Micropython等生态资源上拥有无与伦比的优势。

RP2040中有2个相同的PIO块,每个PIO块都有专用的连接到总线结构,GPIO和中断控制器,每个块有四个状态机,可以独立执行顺序程序来操作GPIO和传输数据。

与通用处理器不同的是,PIO状态机对IO的专业化程度很高(highly specialised),它注重确定性,精确的时序,并与固定功能硬件紧密结合。PIO状态机可以动态地配置和重新配置,以实现许多不同的接口,自由度很高。

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开源方案

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