{"product_id":"adafruit-feather-rp2350-with-hstx-port","title":"Adafruit Feather RP2350 with HSTX Port","description":"\u003cp\u003eRP2350 flies high with the Feather format - now you can use any \u003ca href=\"\/zh\/collections\/adafruit-feather\"\u003eFeatherWings\u003c\/a\u003e with this battery-powered dev board. It comes with 8MB of flash, a 22-pin HSTX output port, \u003ca href=\"\/zh\/products\/stemma-qt-qwiic-jst-sh-4-pin-cable\"\u003eStemma QT\u003c\/a\u003e, debug SWD, and an optional PSRAM spot. It's our first RP2350 board and we crammed a ton of goodies into our classic Feather format. It's an excellent starter board to go along with your \u003ca href=\"\/zh\/products\/raspberry-pi-pico-2\" title=\"Raspberry Pi Pico 2\"\u003ePico 2\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe RP2350 is Raspberry Pi's second microcontroller chip following their breakout-hit the RP2040. Building on their success, the RP2350 upgrades the dual M0 core to dual M33 cores with a 150 MHz clock rate. The M33 is a much newer Arm chipset, we've found that firmware runs about twice as fast. Especially given that we now have hardware floating point support. Also, the RP2350 has twice as much SRAM: 520KB instead of 264KB which means that micropython\/circuit python runs great and IoT projects that need a lot of memory buffer space will run better. Other improvements include 3 PIO blocks instead of 2, TrustZone secure boot, and a special High Speed Transmit (HSTX) peripheral that drives 4 lanes of differential data transmission such as DVI output without needing to overclock or use PIO.\u003c\/p\u003e\n\u003cp\u003eFor peripherals, there are two I2C controllers, two SPI controllers, and two UARTs that are multiplexed across the GPIO - check the pinout for what pins can be set to which. There are 24 PWM channels, each pin has a channel it can be set to (ditto on the pinout).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeather RP2350 HSTX Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures 2.0\" x 0.9\" x 0.28\" (50.8mm x 22.8mm x 7mm) without headers soldered in\u003c\/li\u003e\n\u003cli\u003eLight as a (large?) feather - 5 grams\u003c\/li\u003e\n\u003cli\u003eRP2359 32-bit Cortex M33 dual core running at 150 MHz @ 3.3V logic and power\u003c\/li\u003e\n\u003cli\u003e520 KB RAM + 8 KB OTP memory\u003c\/li\u003e\n\u003cli\u003e8 MB SPI FLASH chip for storing files and CircuitPython\/MicroPython code storage. No EEPROM\u003c\/li\u003e\n\u003cli\u003eOptional spot for SOIC PSRAM chip with chip select line on GPIO 8\u003c\/li\u003e\n\u003cli\u003eTons of GPIO! 29 x GPIO pins with the following capabilities:\n\u003cul\u003e\n\u003cli\u003e21 GPIO available on the Feather header pins, 8 more 'consecutive' GPIO available on the HSTX connector (you don't have to use them with the HSTX peripheral)\u003c\/li\u003e\n\u003cli\u003eFour 12-bit ADCs (one more than Pico 2)\u003c\/li\u003e\n\u003cli\u003eTwo I2C, Two SPI, and two UART peripherals, we label one for the 'main' interface in standard Feather locations\u003c\/li\u003e\n\u003cli\u003e24 x PWM outputs - for servos, LEDs, etc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eBuilt-in 200mA+ \u003ca href=\"\/zh\/search?q=lipo+3.7\u0026amp;narrow_by=\u0026amp;sort_by=relevency\u0026amp;page=1\"\u003elipoly\u003c\/a\u003e charger with charging status indicator LED. For non-rechargeable battery usage, the charger can be disabled by cutting a jumper trace on the back.\u003c\/li\u003e\n\u003cli\u003ePin #7 red LED for general-purpose blinking\u003c\/li\u003e\n\u003cli\u003eRGB NeoPixel for full-color indication.\u003c\/li\u003e\n\u003cli\u003eOn-board STEMMA QT connector that lets you quickly connect any Qwiic, STEMMA QT or Grove I2C devices with no soldering!\u003c\/li\u003e\n\u003cli\u003eBoth the Reset button and Bootloader select button for quick restarts (no unplugging-replugging to relaunch code)\u003c\/li\u003e\n\u003cli\u003e3.3V Power\/enable pin\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/zh\/products\/raspberry-pi-debug-probe\"\u003ePico Probe 3-pin JST SH connector\u003c\/a\u003e for SWD debugging\u003c\/li\u003e\n\u003cli\u003e4 mounting holes\u003c\/li\u003e\n\u003cli\u003e12 MHz crystal for perfect timing.\u003c\/li\u003e\n\u003cli\u003e3.3V regulator with 500mA peak current output\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/zh\/products\/usb-a-to-usb-c-cable-1m\"\u003eUSB Type C connector\u003c\/a\u003e lets you access built-in ROM USB bootloader and serial port debugging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInside the RP2350 is a 'permanent ROM' USB UF2 bootloader. What that means is when you want to program new firmware, you can hold down the BOOTSEL button while plugging it into USB (or pulling down the RUN\/Reset pin to ground) and it will appear as a USB disk drive you can drag the firmware onto. Folks who have been using Adafruit products will find this very familiar - we use the technique on all our native USB boards. Just note you don't double-click reset instead hold down BOOTSEL during boot to enter the bootloader!\u003c\/p\u003e\n\u003cp\u003eThere is great C\/C++ support, unofficial (but really good) Arduino support, an official MicroPython port, and a CircuitPython port! We of course recommend CircuitPython because we think it's the easiest way to get started and it has support with most of our drivers, displays, sensors, and more, supported out of the box so you can follow along with our CircuitPython projects and tutorials.\u003c\/p\u003e\n\u003cp\u003eWhile the RP2350 has lots of onboard RAM, it does not have built-in FLASH memory. Instead, that is provided by the external QSPI flash chip. There is 8 MB on this board, which is shared between the program it's running and any file storage used by MicroPython or CircuitPython. When using C\/C++ you get the whole flash memory, if using Python you will have about 7 MB remaining for code, files, images, fonts, etc.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/8qfeyg05nio?si=uHEif0SKbwSUHSZz\u0026amp;start=160\" height=\"315\" width=\"560\" allowfullscreen=\"allowfullscreen\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRP2350 Chip Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual ARM Cortex-M33 with floating point unit \u003cem\u003eor\u003c\/em\u003e Dual RISC-V @ 150MHz\u003c\/li\u003e\n\u003cli\u003e520 kB on-chip SRAM\u003c\/li\u003e\n\u003cli\u003e8 kB of one-time-programmable (OTP) memory.\u003c\/li\u003e\n\u003cli\u003eSupport for up to 16MB of off-chip Flash memory via a dedicated QSPI bus\u003c\/li\u003e\n\u003cli\u003eSupport for external QSPI PSRAM\u003c\/li\u003e\n\u003cli\u003eDMA controller, 16 channel, 4 IRQ\u003c\/li\u003e\n\u003cli\u003eFully-connected AHB crossbar\u003c\/li\u003e\n\u003cli\u003eOn-chip switched-mode power supply and programmable low-dropout regulator (LDO) to generate core voltage\u003c\/li\u003e\n\u003cli\u003eTwo on-chip PLLs to generate 48 MHz USB and 150MHz core clocks\u003c\/li\u003e\n\u003cli\u003eOptional boot signing with protected OTP storage\u003c\/li\u003e\n\u003cli\u003eHardware SHA-256 accelerator\u003c\/li\u003e\n\u003cli\u003eHardware random number generator (TRNG)\u003c\/li\u003e\n\u003cli\u003e30 GPIO pins, 4 of which can be used as analogue inputs\u003c\/li\u003e\n\u003cli\u003ePeripherals\n\u003cul\u003e\n\u003cli\u003e2 UARTs\u003c\/li\u003e\n\u003cli\u003e2 SPI controllers\u003c\/li\u003e\n\u003cli\u003e2 I2C controllers\u003c\/li\u003e\n\u003cli\u003e24 PWM channels (compared to 16 on RP2040)\u003c\/li\u003e\n\u003cli\u003eUSB 1.1 controller and PHY, with host and device support\u003c\/li\u003e\n\u003cli\u003e12 PIO state machines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eThe Adafruit Feather RP2350 HSTX comes with the A2 version of the RP2350, \u003c\/span\u003e\u003ca href=\"https:\/\/datasheets.raspberrypi.com\/rp2350\/rp2350-datasheet.pdf#page=1342\"\u003ewhich is affected by the E9 erratum\u003c\/a\u003e\u003cspan\u003e. This errata affects some uses of GPIO and PIO such as high-impedance inputs and the internal pulldowns. You may need to use 8.2K or smaller resistors if pull-downs are required. At this time, Sept 9 2024, there is no other version of the RP2350 available - only the A2 version.\u003c\/span\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":50847240651025,"sku":"ADA6000","price":11.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/adafruit-feather-rp2350-with-hstx-port-adafruit-ada6000-43170794307779.jpg?v=1735209030","url":"https:\/\/abcd3032.myshopify.com\/zh\/products\/adafruit-feather-rp2350-with-hstx-port","provider":"Tayyab Zak","version":"1.0","type":"link"}