Vi điều khiển Raspberry Pi RP2040

About RP2040

Raspberry Pi's RP2040 microcontroller is a dual core ARM Cortex M0+ running at up to 133Mhz. It bundles in 264kB of SRAM, 30 multifunction GPIO pins (including a four channel 12-bit ADC), a heap of standard peripherals (I2C, SPI, UART, PWM, clocks, etc), and USB support.

One very exciting feature of RP2040 is the programmable IOs which allow you to execute custom programs that can manipulate GPIO pins and transfer data between peripherals - they can offload tasks that require high data transfer rates or precise timing that traditionally would have required a lot of heavy lifting from the CPU.

• Dual-core Arm Cortex-M0+ @ 133MHz
• 264KB of on-chip RAM
• Support for up to 16MB of off-chip Flash memory via a QSPI bus
• DMA controller
• Interpolator and integer divider peripherals
• 30 GPIO pins, 4 of which can be used as analogue inputs
• 2 × UARTs, 2 × SPI controllers, and 2 × I2C controllers
• 16 × PWM channels
• 1 × USB 1.1 controller and PHY, with host and device support
• 8 × Raspberry Pi Programmable I/O (PIO) state machines
• USB mass-storage boot mode with UF2 support, for drag-anddrop programming

Full documentation can be found at the Rasperry Pi RP2040 Getting Started page

Today, we’re announcing the logical next step: RP2040 chips are now available from our Approved Reseller partners in single-unit quantities, allowing you to build your own projects and products on Raspberry Silicon.

RP2040: the microcontroller, perfected

RP2040 is our idea of the perfect mid-range microcontroller, based on years of using other vendors’ devices in our own products and projects. It stands out in three key ways:

• Two fast CPU cores. A pair of ARM Cortex-M0+ cores, clocked at 133 MHz, provide ample integer performance. Use one core to run application code, and the other to supervise hardware; or run application code on both cores with FreeRTOS or MicroPython.
• Plenty of RAM. With 264KB of RAM, you can concentrate on implementing features, not optimising your application for size. A fully connected switch connects ARM cores and DMA engines to six independent RAM banks, allowing you to squeeze every last drop of performance out of the system.
• Flexible I/O. We provide all the usual interfaces: hardware UARTs, SPI and I2C controllers, USB 1.1, and a four-channel ADC. But it’s the programmable I/O (PIO) subsystem that makes RP2040 stand out, enabling software implementations of protocols including SDIO, DPI, I2S, and even DVI-D.

All of this is packed into 2 mm² of 40 nm silicon, in a 7×7 mm QFN56 package.