Matrix - Easy Multiplexing Board for M1/zh
From FriendlyELEC WiKi
1 介绍
- 模块Easy Multiplexing Board for M1是专为NanoPi M1定制的IO口扩展模块，模块提供了两个40 Pin排针和2个2.0间距的4 Pin端子，一个是I2C0接口，一个是UART1接口，方便通过杜邦线连接模块。
2 特性
- 2个2.54mm 40Pin排针
- 1个2.0mm 4Pin I2C0接口端子
- 1个2.0mm 4Pin UART1接口端子
- PCB尺寸（mm）：40x64
- 引脚说明:
40 Pin排针引脚定义：
| Pin# | Name | Linux gpio | Pin# | Name | Linux gpio |
| 1 | SYS_3.3V | 2 | VDD_5V | ||
| 3 | I2C0_SDA | 4 | VDD_5V | ||
| 5 | I2C0_SCL | 6 | GND | ||
| 7 | GPIOG11 | 203 | 8 | UART1_TX/GPIOG6 | 198 |
| 9 | GND | 10 | UART1_RX/GPIOG7 | 199 | |
| 11 | UART2_TX/GPIOA0 | 0 | 12 | PWM1/GPIOA6 | 6 |
| 13 | UART2_RTS/GPIOA2 | 2 | 14 | GND | |
| 15 | UART2_CTS/GPIOA3 | 3 | 16 | UART1_RTS/GPIOG8 | 200 |
| 17 | SYS_3.3V | 18 | UART1_CTS/GPIOG9 | 201 | |
| 19 | SPI0_MOSI/GPIOC0 | 64 | 20 | GND | |
| 21 | SPI0_MISO/GPIOC1 | 65 | 22 | UART2_RX/GPIOA1 | 1 |
| 23 | SPI0_CLK/GPIOC2 | 93 | 24 | SPI0_CS/GPIOC3 | 67 |
| 25 | GND | 26 | SPDIF-OUT/GPIOA17 | 17 | |
| 27 | I2C1_SDA/GPIOA19 | 19 | 28 | I2C1_SCL/GPIOA18 | 18 |
| 29 | GPIOA20 | 20 | 30 | GND | |
| 31 | GPIOA21 | 21 | 32 | GPIOA7 | 7 |
| 33 | GPIOA8 | 8 | 34 | GND | |
| 35 | UART3_CTS/SPI1_MISO/GPIOA16 | 16 | 36 | UART3_TX/SPI1_CS/GPIOA13 | 13 |
| 37 | GPIOA9 | 9 | 38 | UART3_RTS/SPI1_MOSI/GPIOA15 | 15 |
| 39 | GND | 40 | UART3_RX/SPI1_CLK/GPIOA14 | 14 |
I2C0接口引脚定义：
| Pin# | Name |
| 1 | GND |
| 2 | 5V |
| 3 | I2C0_SDA |
| 4 | I2C0_SCL |
UART1接口引脚定义：
| Pin# | Name |
| 1 | GND |
| 2 | 5V |
| 3 | UART1_TX/GPIOG6 |
| 4 | UART1_RX/GPIOG7 |
3 工作原理
- Matrix-Easy Multiplexing Board for M1主要
4 硬件连接
4.1 连接NanoPi M1
参考下图连接模块：
Matrix-EMB_nanopi_m1
连接说明：
| Matrix-Button | NanoPi M1 |
| S | Pin7 |
| V | Pin4 |
| G | Pin6 |
