Adafruit Feather-M0.
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Adafruit Feather-M0.
Feather-M0는 Adafruit Industries가 만든 Microhip의 SAM D21 기반의 보드입니다.
Memory-map
| Section | Start Address | Size | Description |
| Flash | 0x00000000 | 8KB | Bootloader |
| 0x00002000 | 248KB | Program memory |
| RAM | 0x20000000 | 32KB - 48 - NOLA_NOINIT_SIZE | bss, heap (default: 16KB), stack (default: 4KB) |
| NOINIT | 0x20007FD0 - NOLA_NOINIT_SIZE | NOLA_NOINIT_SIZE | Application no-initialization section |
| NOINIT_SYS | 0x20007FD0 | 48 | System reserved no-initialization section |
Pin-map
Top-side connector
| Name | Function |
BAT | VBAT |
En | Connect to ground to disable the 3.3V regulator |
USB | VBUS |
D13 | PA17 | Red LED, External Interrupt[1] |
D12 | PA19 | External Interrupt[3] |
D11 | PA16 | External Interrupt[0] |
D10 | PA18 | External Interrupt[2] |
D9, A7 | PA07 | External Interrupt[7], ADC[7] |
D6 | PA20 | External Interrupt[4] |
D5 | PA15 | External Interrupt[15] |
D21 | PA23 | Wire (SCL), External Interrupt[7] |
D20 | PA22 | Wire (SDA), External Interrupt[6] |
Bottom-side connector
| Name | Function |
RST | Reset (active low) |
3V | 3.3V |
ARf | PA03 | External Interrupt[3], VREF[A], ADC[1] |
GND | Ground |
A0, D14 | PA02 | External Interrupt[2], ADC[0] |
A1, D15 | PB08 | External Interrupt[8], ADC[2] |
A2, D16 | PB09 | External Interrupt[9], ADC[3] |
A3, D17 | PA04 | External Interrupt[4], AREF[B], ADC[4], Serial0 (TXD) |
A4, D18 | PA05 | External Interrupt[5], ADC[5], Serial0 (RXD) |
A5, D19 | PB02 | External Interrupt[2], ADC[10] |
D24 | PB11 | Spi (SCK), External Interrupt[11] |
D23 | PB10 | Spi (MOSI), External Interrupt[10] |
D22 | PA12 | Spi (MISO), External Interrupt[12] |
D0 | PA11 | Serial2 (RXD), External Interrupt[11] |
D1 | PA10 | Serial2 (TXD), External Interrupt[10] |
GND | Ground |
◆ Serial0
Serial0
- Peripheral: SERCOM0
- Rx: A4
- Tx: A3
◆ Serial2
Serial2
- Peripheral: SERCOM2
- Rx: D0
- Tx: D1
◆ Spi
Spi
- Peripheral: SERCOM4
- MOSI: D23
- MISO: D22
- SCK: D24
◆ Wire
Wire
- Peripheral: SERCOM3
- SDA: D20
- SCL: D21
