Source: Translated from the website "Tom's HARDWARE", thank you.
At the recent 2021 tinyML Summit, Raspberry Pi co-founder Eben Upton teased a "Pi Silicon" future, and it looks like machine learning could see a big step forward thanks to news from the Raspberry Pi team's in-house chip development team.
Raspberry Pi's internal application-specific integrated circuit (ASIC) team is reportedly working on the next generation of products, seemingly focusing on lightweight accelerators for ultra-low-power machine learning applications.
During Upton's 40-minute talk, we got a peek at "Future Directions," a slide that showed three current-generation "Pi Silicon" boards, two of which are from board partners, SparkFun's MicroMod RP2040 and Arduino's Nano RP2040 Connect. The third is from ArduCam, which is developing the ArduCam Pico4ML, which combines machine learning, a camera, a microphone, and a screen into a single Pico package.
That last bit hints at what future chips might be. It might come in the form of a lightweight accelerator, perhaps with 4-8 multiple accumulates (MACs) per clock cycle. In Upton's presentation, he said, "It's highly likely there will be other silicon from the Raspberry Pi."
Recently, Raspberry Pi launched the Raspberry Pi Pico based on the RP2040 silicon platform. Eben Upton outlines the architecture and feature set of the RP2040, describes current results and ongoing work on executing inference workloads on the platform, and speculates on future opportunities for lightweight accelerated inference on microcontroller-class platforms.
Eben Upton introduced that the Raspberry Pi Pico is a fundamental change to previous Pis because it is not a Linux computer, but a microcontroller board like Arduino. The biggest selling point of the Raspberry Pi Pico is the $4 price and the new RP2040 chip, which provides enough power for embedded projects, allowing users of any age or ability to learn coding and electronics.
The Raspberry Pi Pico is unlike any model that came before it. It is the first device to use the custom system-on-chip (SoC) RP2040 "Pi Silicon" developed by the Raspberry Pi team, which features a dual-core Arm Cortex M0+ running at 133 MHz, 264KB of SRAM, and 2MB of flash memory for file storage.
One of the downsides of the Raspberry Pi Pico is that there is no wireless connectivity. The RP2040 is the first microcontroller in the Pi family, which brings a new way of working. The Pico is not a computer, but we need to write the code in an external application on another computer and then "store" the code to the microcontroller via USB.
It's safe to say that the Raspberry Pi Pico and its RP2040 SoC have been a hit. The Pico has only been on the market for a few weeks, but it has already sold 250,000 units, with 750,000 unfulfilled orders. Now that more RP2040 boards are needed, partners like Adafruit, Pimoroni, Adafruit, and Sparkfun are releasing their own hardware, many of which have features not available on the Pico.
*Disclaimer: This article is originally written by the author. The content of the article is the author's personal opinion. Semiconductor Industry Observer reprints it only to convey a different point of view. It does not mean that Semiconductor Industry Observer agrees or supports this point of view. If you have any objections, please contact Semiconductor Industry Observer.
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