128 lines
3.0 KiB
ReStructuredText
128 lines
3.0 KiB
ReStructuredText
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=================
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Pimoroni Tiny2040
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=================
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The Tiny2040 is a general purpose RP2040 board supplied by Pimoroni.
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.. figure:: Tiny2040.png
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:align: center
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Features
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========
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* RP2040 microcontroller chip
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* Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz
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* 264kB of SRAM, and 2MB or 8MB of on-board Flash memory
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* Castellated module allows soldering direct to carrier boards
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* USB Host and Device support via type C connector
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* Low-power sleep and dormant modes
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* Drag & drop programming using mass storage over USB
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* 12 multi-function GPIO pins
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* 2× SPI, 2× I2C, 2× UART, 3× 12-bit ADC, 16× controllable PWM channels
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* Accurate clock and timer on-chip
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* Temperature sensor
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* Accelerated floating point libraries on-chip
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* 8 × Programmable IO (PIO) state machines for custom peripheral support
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Serial Console
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==============
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By default a serial console appears on pins 15 (RX GPIO0) and
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pin 16 (TX GPIO1). This console runs a 115200-8N1.
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The board can be configured to use the USB connection as the serial console.
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Buttons and LEDs
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================
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There is a single onboard RGB LED controlled by pins
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GPIO18 (red), GPIO19 (green), and GPIO20 (blue).
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The is a User/BOOT button readable as GPIO23. If held down when power
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is first applied the RP2040 will boot into program mode and appear to
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a computer connected via USB as a storage device. Saving
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a .UF2 file to this device will replace the Flash ROM contents
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on the RP2040.
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Pin Mapping
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===========
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===== ========== ==========
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Pin Signal Notes
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===== ========== ==========
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1 VBUS Connected to USB +5V
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2 Ground
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3 3V3 Out to peripherals
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4 GPIO29 ADC3
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5 GPIO28 ADC2
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6 GPIO27 ADC1
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7 GPIO26 ADC0
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8 Ground
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9 GPIO7
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10 GPIO6
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11 GPIO5
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12 GPIO4
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13 GPIO3
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14 GPIO2
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15 GPIO1 Default RX for UART0 serial console
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16 GPIO0 Default TX for UART0 serial console
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===== ========== ==========
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Power Supply
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============
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The Raspberry Pi Pico can be powered via the USB connector,
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or by supplying +5V to pin 1.
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The Raspberry Pi Pico chip run on 3.3 volts. This is supplied
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by an onboard voltage regulator.
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Configurations
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==============
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composite
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---------
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NuttShell configuration (console enabled in UART0, at 115200 bps) with support for
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CDC/ACM with MSC USB composite driver.
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gpio
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--------
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NuttShell configuration (console enabled in UART0, at 115200 bps) with GPIO examples.
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nsh
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---
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Basic NuttShell configuration (console enabled in UART0, at 115200 bps).
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nshsram
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-------
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NuttShell configuration (console enabled in UART0, at 115200 bps) with interrupt
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vectors in RAM.
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smp
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---
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Basic NuttShell configuration (console enabled in UART0, at 115200 bps) with
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both ARM cores enabled.
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spisd
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-----
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NuttShell configuration (console enabled in UART0, at 115200 bps) with SPI configured.
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usbmsc
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------
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NuttShell configuration (console enabled in UART0, at 115200 bps) with support for
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usbmsc.
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usbnsh
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------
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Basic NuttShell configuration (console enabled in USB Port, at 115200 bps).
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