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6 Swan is a low-cost embeddable STM32L4-based microcontroller designed to
7 accelerate the development and deployment of battery-powered solutions.
12 Uniquely for Feather-compatible boards, Swan is designed to satisfy
13 developers' needs that span from early prototyping through high-volume
15 Adafruit's myriad sensors and FeatherWing-compatible carriers.
16 Due to its novel design, for high-volume deployment the low-cost Swan
20 The board has three independent power options---USB, Battery, or Line
21 power---and provides a software-switchable 2 Amp regulator for powering external
22 sensors. When operating in its low-power operating mode, the entire Swan
24 making it quite suitable for battery-powered devices.
26 The Swan board features an ARM Cortex-M4 based STM32L4R5ZI MCU
30 - STM32 microcontroller in WLCSP144 package
31 - 2MB of flash and 640KB of RAM
32 - Two types of extension resources:
34 - Adafruit Feather-compatible connectivity
35 - Access to 36 additional STM32 pins (beyond the Feather pins) via 0.05" castellated edge headers
37 - On-board ST-LINKV3 debugger/programmer with SWD connector
39 - One Red User LED (LD1)
40 - Two push-buttons: USER and RESET
42 - Castellated-edge access to 55 GPIO ports including:
44 - 8 analog
45 - 16 digital
46 - 4x I2C, 3x SPI
47 - USB OTG full speed
48 - 1x 14-channel DMA
49 - tRNG
50 - 12-bit ADC, 2 x 12-bit DAC
51 - low-power RTC, and CRC calculation peripherals
60 - Ultra-low-power with FlexPowerControl (down to 130 nA Standby mode
62 - Core: ARM |reg| 32-bit Cortex |reg|-M4 CPU with FPU, adaptive
63 real-time accelerator (ART Accelerator) allowing 0-wait-state
67 - Memories
69 - 2-Mbyte Flash, 2 banks read-while-write, proprietary code readout protection
70 - 640 Kbytes of SRAM including 64 Kbytes with hardware parity check
71 - External memory interface for static memories supporting SRAM,
73 - 2 x OctoSPI memory interface
75 - True random number generator
76 - CRC calculation unit, 96-bit unique ID
77 - Development support: serial wire debug (SWD), JTAG, Embedded Trace
82 - `Swan Quickstart Guide`_
83 - `Swan Datasheet`_
91 +-----------+------------+-------------------------------------+
94 | NVIC | on-chip | nested vector interrupt controller |
95 +-----------+------------+-------------------------------------+
96 | UART | on-chip | serial port-polling; |
97 | | | serial port-interrupt |
98 +-----------+------------+-------------------------------------+
99 | PINMUX | on-chip | pinmux |
100 +-----------+------------+-------------------------------------+
101 | GPIO | on-chip | gpio |
102 +-----------+------------+-------------------------------------+
103 | I2C | on-chip | i2c |
104 +-----------+------------+-------------------------------------+
105 | PWM | on-chip | pwm |
106 +-----------+------------+-------------------------------------+
107 | SPI | on-chip | spi |
108 +-----------+------------+-------------------------------------+
109 | USB | on-chip | usb |
110 +-----------+------------+-------------------------------------+
111 | ADC | on-chip | adc |
112 +-----------+------------+-------------------------------------+
124 ----------------------------------
126 .. rst-class:: rst-columns
128 - A0 : PA3
129 - A1 : PA1
130 - A2 : PC3
131 - A3 : PC1
132 - A4 : PC4
133 - A5 : PC5
134 - D4 : PE3
135 - D5 : PE11
136 - D6 : PE9
137 - D9 : PD15
138 - D10 : PA4
139 - D11 : PA7
140 - D12 : PA6
141 - D13 : PA5
142 - UART_1_TX : PA9
143 - UART_1_RX : PA10
144 - UART_2_TX : PA2
145 - UART_2_RX : PD6
146 - UART_3_TX : PB10
147 - UART_3_RX : PB11
148 - LPUART_TX : PG7
149 - LPUART_RX : PG8
150 - I2C_1_SCL : PB6
151 - I2C_1_SDA : PB7
152 - I2C_2_SCL : PF1
153 - I2C_2_SDA : PF0
154 - I2C_3_SCL : PC0
155 - I2C_3_SDA : PC9
156 - SPI_1_NSS : PA4
157 - SPI_1_SCK : PA5
158 - SPI_1_MISO : PA6
159 - SPI_1_MOSI : PA7
160 - SPI_2_NSS : PD0
161 - SPI_2_SCK : PD1
162 - SPI_2_MISO : PB14
163 - SPI_2_MOSI : PB15
164 - SPI_3_NSS : PA15
165 - SPI_3_SCK : PC10
166 - SPI_3_MISO : PC11
167 - SPI_3_MOSI : PC12
168 - PWM_2_CH1 : PA0
169 - USER_PB : PC13
170 - LD1 : PE2
171 - USB DM : PA11
172 - USB DP : PA12
173 - ADC1 : PA1
176 ------------
184 -----------
194 :zephyr:code-sample:`hello_world` application.
198 .. code-block:: console
200 $ minicom -D /dev/ttyACM0
204 .. zephyr-app-commands::
205 :zephyr-app: samples/hello_world
211 .. code-block:: console
218 .. target-notes::
224 https://dev.blues.io/start/swan/swan-quickstart
227 https://dev.blues.io/hardware/swan-datasheet/