项目| Item | 内容Content | 产品编号 | Product No. | S1A-BM1688 | 版本号| Version | V1.0 | 发布日期 | Release Date | 2026-04-14 | 生效日期| Effective Date | 2026-04-14 | 文件状态| Document Status | 编修Under Revision | 文件拟定| Compiled by | 王志海Wang Zhihai | 文件审核| Reviewed by | — | 保密类型| Confidentiality Level | 公开Public |
版本| Version | 发布日期Release Date | 升级记录Revision Record | | V1.0 | 2026-04-14 | 第一次发布 |
Chapter 1 Product Introduction
S1A-BM1688 搭载高集成智能视觉深度学习处理器BM1688，具备高性能、低功耗、外设接口全、环境适应性强等特点，通过搭配多 样化深度学习算法，灵活应对智慧城市、智慧商业、智慧能源等场景，实现边缘侧的数字化赋能。
1.1产品规格is equipped with the highly integrated intelligent vision deep learning processor BM1688. It features high performance, low power consumption, comprehensive peripheral interfaces and strong environmental adaptability. Combined with various deep learning algorithms, it can be flexibly applied to scenarios such as smart city, smart business and smart energy, enabling digital empowerment at the edge side. 1.1 Product Specifications | Item | Specifications |
|---|
| Processor | BM1688, 8-core 12nm ARM Cortex-A53 @ 1 |
处理器 | BM1688 8 核 12nm ARM CortexA53@1- 算力：
- 16 TOPS（INT8）
- 4 TFLOPS（Computing Power:
16 TOPS (INT8)
4 TFLOPS (FP16/BF16 |
）- 0（）闪存（）EMMC 可选容量：| 16GB / 32GB / 64GB | | SDRAM | LPDDR4X |
，64bit，4G| , 64bit, optional: 4GB / 8GB / |
16G 可选 4200MHZ| 16GB, 4200MHz | | Power Supply |
Specifications◆电源规格 | ◆电源指示灯（）Main Features | ◆操作系统 | 开启电源：蓝色 | | Blue when powered on | | Operating System |
◆ 视频解码| Video Decoding | Support 16- |
支持 16 路| channel H.265/H.264 1080p@30fps |
视频解码
- 支持 16 路 1080P@30fps 高清视频全流程处理（解码 + AI 分析）-Hdecoding
Support full processing (decoding + AI analysis) for 16-channel 1080p@30fps video
H.264 & H.265: 1080P@480fps |
8192 * 8192 | , resolution up to 8192×8192 / 8K / 4K / 1080P / 720P / D1 / CIF |
◆视频编码支持路| -channel H.265/H.264 1080p@30fps |
视频编码◆接口- 输出接口 × 1- 输入接口 × 1◆- Host 接口 × 2- OTG ◆网络接口（LAN） | 1000M 以太网接口 × 2 | ◆接口 × 1| OTG | | Ethernet | 2 × Gigabit Ethernet Ports |
支持固态硬盘 （选配）◆key支持模组，也可以扩展WIFI（选配）| modules and WIFI expansion (Optional) | | SATA | 2 × SATA 3.0 Ports | | Serial Port | 1 × RS232
1 × RS485 | | MIPI CSI | Onboard interface | | External GPIO | 2 Inputs + 2 Outputs | | Debug Port |
◆ SATA | 支持两路SATA3.0 | ◆串口 | - RS232 接口：支持 × 1
- RS485 接口：支持 × 1 | ◆Mipi CSI | 内置接口 | ◆GPIO | 外部 输入*2 输出*2 | ◆Debug（波特率：）◆Uart内置 @3◆ *内置◆散热方式 | 被动散热（支持风扇散热） | ◆整机功耗 | 15W （不加外设） | ◆净重| Heat Dissipation | Passive cooling (Fan cooling supported) | | Power Consumption | 15W (Without external devices) | | Net Weight | 950g |
◆℃◆20 -60◆20 -70℃20 -90 RH （无冷凝） | | 20% ~ 90% RH (Non-condensing) | | Storage Humidity | 20% ~ 70% RH (Non-condensing) |
◆Operating Humidity | 20 -70 RH （无冷凝） | 1.2 整机接口示意图Overall Interface Diagram
1.3 PCBA 尺寸图Dimension Drawing
1.4 4Internal Interface Diagram of PCBA内部接口示意图
 第二章 接口定义及使用方法
Chapter 2 Interface Definition and Usage序号 | 名称 | 附图 | 规格及使用方法 | 1 | DC电源输入 |
| DC 12V 3A电源输入，请使用配套电源。 DC口规格：5.5-2.1MM | 2 | HDMI 输入 |
| HDMI 输入，最高支持4K 60HZ。 sudo systemctl disable SophonHDMI reboot sudo insmod /mnt/system/ko/v4l2_lt6911.ko cd /opt/sophon/sophon-soc-libisp_1.0.0/bin/ ./isp_tool_daemon 目前Demo只支持4K60，需要其他分辨率需调整固件 | 3 | Recovery按键 |
| Recovery按键，USB升级时使用 | 4 | HDMI 输出 |
| HDMI 输出，最高支持4K 60HZ。 | 5-6 | 以太网 |
| 1000M x2 EHT1 为固定IP;EHT0 为动态IP | 7-8-9 | USB 口 |
| USB1 为USB3.0 OTG 口，可以作为固件升级（建议TF卡升级）； USB2和USB3为USB3.0 HOST口。 | 10 | 串口、GPIO口 |
| RS485 –ttyS1 最高波特率 115200bps RS232 – ttyS3最高波特率 115200bps 可以使用我们配套的uart 脚本进行测试 12V 电源输出，最大负载为1A，引线长度不应超过1M GPIO-IN 输入低电平或者悬空时，CPU读取为“1”； 输入高电平时（3.3-12V），CPU读取为“0” GPIO IN1： echo 338 > /sys/class/gpio/export echo in > /sys/class/gpio/gpio338/direction cat /sys/class/gpio/gpio338/value GPIO IN2： echo 339 > /sys/class/gpio/export echo in > /sys/class/gpio/gpio339/direction cat /sys/class/gpio/gpio339/value GPIO-OUT CPU输出“1”时，端口输出为“3.3V”； CPU输出“0”时，端口输出为 “0V” GPIO输出是带3.3V@10K上拉的漏极输出器， 可以控制 5V-12V的设备。（需要外接上拉） GPIO OUT1： echo 335 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio335/direction echo 0 > /sys/class/gpio/gpio335/value echo 1 > /sys/class/gpio/gpio335/value GPIO OUT2 ： echo 334 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio334/direction echo 0 > /sys/class/gpio/gpio334/value echo 1 > /sys/class/gpio/gpio334/value | 11 | SIM |
| 4G、5G 网络 SIM卡位，为Nano卡。 | 12 | 调试口 |
| 调试口，内置USB转Uart芯片CH341，波特率115200bps 驱动下载： https://www.wch.cn/products/CH340 | 13 | TF 卡 |
| 可用于升级固件；支持数据存储。 | 14-15 | |
| 指示灯 | 16 | 电源端口 |
| 12V电源输入口，与DC座并联输入 2.0MM 4P | 17 | 风扇接口1 |
| 风扇接口，带PWM，默认为12V风扇。 1.25MM 3P | 18 | 风扇接口2 |
| 风扇接口，带PWM，默认为12V风扇。 1.25MM 4P | 19 | 风扇电源切换电感 |
| 用于切换风扇的电源电压 | 20 | GPIO 口 |
| Pin | 电平 | 功能 | 1/3 | 3.3V | 3.3V电源 | 2/4 | 5.0V | 5.0V 电源 | 5 | 3.3V | PWR_SPINOR_SDI / CAM_MCLK4 / PWR_GPIO4 / WG1_D1 / IIC2_SDA | 6 | 3.3V | IIC5_SDA / KEY_ROW2 / TC906_JTAG0_TRST_X / GPIO103 / UART6_TX / SPI3_SDO | 7 | 3.3V | IIC4_SDA / KEY_ROW0 / TC906_JTAG0_TCK / GPIO101 / UART5_TX / SPI3_CS_X | 8 | 3.3V | IIC4_SCL / KEY_ROW1 / TC906_JTAG0_TMS / GPIO102 / UART5_RX / SPI3_SDI | 9 | 3.3V | MIPI_DSI0_N2 / VO0_D19 / CAM_MCLK5 / GPIO179 / CAM_VS2 / I2C7_SCL | 10 | 3.3V | IIC5_SCL / KEY_ROW3 / TC906_JTAG0_SRST_X / GPIO104 / UART6_RX / SPI3_SCK | 11 | 3.3V | MIPI_DSI0_P2 / VO0_D18 / CAM_MCLK4 / GPIO178 / CAM_HS2 / I2C7_SDA | 12 | 3.3V | UART4_RTS / GPIO93 / UART3_RTS / SPI3_SDI / IIC9_SDA / KEY_ROW2 | 13 | 3.3V | PWM4 / CAN1_TX / SD2_0_D2 / GPIO79 / UART4_TX / IIC5_SDA / CAM_HS2 | 14 | 3.3V | UART4_CTS / GPIO94 / UART3_CTS / SPI3_CS_X / IIC9_SCL / KEY_ROW3 | 15 | 3.3V | SD1_CD_X / PWM14 / GPIO61 / CAM_MCLK0 / CAM_HS0 | 16 | 3.3V | UART4_RX / SD2_1_CMD / GPIO92 / UART1_CTS / SPI3_SDO / IIC8_SCL / KEY_ROW1 | 17 | 3.3V | PWM5 / CAN1_RXD / SD2_0_D3 / GPIO80 / UART4_RX / IIC5_SCL / CAM_VS2 | 18 | 3.3V | UART4_TX / SD2_1_CLK / GPIO91 / UART1_RTS / SPI3_SCK / IIC8_SDA / KEY_ROW0 | 19/20 | 0V | GND | 21 | 1.8V | PWM2 / KEY_COL2 / SD2_0_D0 / GPIO77 / UART6_TX / SPI1_SDO / IIC4_SDA / CAM_HS1 | 22 | 1.8V | AUD0_AINR_MIC / I2S1_SDO / I2S2_SDO | 23 | 1.8V | PWM3 / KEY_COL3 / SD2_0_D1 / GPIO78 / UART6_RX / SPI1_SCK / IIC4_SCL / CAM_VS1 | 24 | 1.8V | AUD0_AINL_MIC / I2S1_SDI / I2S2_SDI | 25 | 1.8V | PWM1 / KEY_COL1 / SD2_0_CMD / GPIO76 / UART5_RX / SPI1_SDI / IIC3_SCL / CAM_VS0 | 26 | 1.8V | MIPI_CSI_17P / GPIO172 / VI0_D[6] / CAM_MCLK4 | 27 | 1.8V | PWR_SPINOR_SDO / CAM_MCLK5 / PWR_GPIO5 / IIC2_SCL | 28 | 1.8V | MIPI_CSI_17N / GPIO173 / VI0_D[7] / CAM_MCLK5 | 29/30 | 0V | GND | 31 | 1.8V | CAM_XLR0 / GPIO69 | 32 | 1.8V | PWR_GPIO11 | 33 | 1.8V | CAM_MCLK0 / GPIO46 | 34 | 1.8V | IIC2_SCL / TC906_JTAG0_TDI / GPIO100 / UART3_RX | 35 | 1.8V | CAM_MCLK0 / GPIO46 | 36 | 1.8V | MIPI_DSI0_P3 / VO0_D20 / GPIO180 / CAM_HS0 / I2C8_SDA / VO1_D20 | 37 | 2.8V | MIPI_DSI0_N4 / VO0_D23 / GPIO183 / CAM_VS1 / I2C9_SCL / VO1_D23 | 38 | 3.8V | MIPI_DSI0_N3 / VO0_D21 / GPIO181 / CAM_VS0 / I2C8_SCL / VO1_D21 | 39/40 | 0V | GND |
| 21 | SATA 接口 |
| 两路SATA 3.0 7P 使用SATA硬盘时，请先格式化硬盘 | 22 | SATA 电源 |
| 两路2.0MM 4P SATA电源 | 23,-24 | PWR、Reset按键 |
| PWR、Reset按键 | 25 | Debug 口 |
| 内部Debug 调试口 2.0MM 3P | 26 | 4G/5G 模块接口 |
| 4G/5G 模块接口 M.2 B-key 支持2242和2250模组 USB2.0+USB3.0 通讯方式 支持 美格 SRM821 5G 模组（其他模组需调试） | 27 | M.2 PCIE |
| M.2 M-Key 2280 PCIE3.0x2 支持SSD或其他PCIE 模组 使用SSD时，请先格式化SSD |
第三章 烧录固件说明 BM1688 目前提供两种更新方式：TF卡刷机，USB烧录。其中TF卡刷机会重写整个eMMC，也即您存储在eMMC的数据全部会丢失。这种方式最为干净可靠，理论上只要您的 BM1688 没有硬件损坏，都可以进行TF卡刷机。文件替换方式是指在Ubuntu下通过替换对应文件的方式分别升级bootloader、kernel和其它软件。这种方式有一定的风险，如不同软件组件之间的版本匹配、文件损坏等。以下TF卡软件更新方式的操作： - TF卡刷机
请将TF卡格式化为FAT32格式（如果TF卡上有多个分区，只能使用第一个分区），大小为4GB以上。 请下载 S1A-BM1688 最新刷机包，不同配置的DDR需要切换不同的dts。 固件地址： 8G：https://pan.baidu.com/s/1YqSjeHHOfH81cc8nofeRTw?pwd=52p5 提取码: 52p5 请将下载的固件解压到TF卡根目录，并核对压缩包的MD5值。确认文件如下（数量不一定相同）： 请将 BM1688 断电，插入SD卡，并连接串口终端，然后给 BM1688 上电。您将看到 BM1688 自动进入刷机流程： 刷机通常耗时约3-10分钟，结束后，“Please remove the installation medium, then reboot”提示，请断电取出TF卡即可： 请注意：刷机后Ubuntu系统第一次启动时会进行文件系统初始化等关键动作，请勿随意断电，待开机进入命令行后使用再断电关机。 第四章 软件调试说明账号：linaro 密码：linaro MAC /SN 码烧录
Chapter 3 Firmware Flashing Instructions
Two firmware update methods are provided for BM1688: TF card flashing and USB flashing. TF card flashing will rewrite the entire eMMC, resulting in complete loss of all data stored on the eMMC. This method is the cleanest and most reliable, and can be implemented as long as the BM1688 hardware is undamaged. The file replacement method refers to upgrading the bootloader, kernel and other software separately by replacing relevant files in the Ubuntu system. This method involves certain risks including version incompatibility among different software components and file damage. The operating procedures for TF card firmware update are stated below.
TF Card Flashing
Format the TF card to FAT32 file system. If the TF card contains multiple partitions, only the first partition can be used. The card capacity shall be 4GB or above.
Download the latest flashing package for S1A-BM1688. Select the corresponding DTS file according to different DDR configurations.
Firmware link:
8G version: https://pan.baidu.com/s/1YqSjeHHOfH81cc8nofeRTw
Extraction code: 52p5
Extract the downloaded firmware package to the root directory of the TF card and verify the MD5 value of the compressed file. Check the extracted files accordingly (the total number of files may vary).
Power off the BM1688 device, insert the TF card and connect the serial port terminal, then power on the device. The device will automatically enter the flashing process.
The whole flashing process generally takes 3 to 10 minutes. When the prompt "Please remove the installation medium, then reboot" appears, power off the device and remove the TF card.
Note: The Ubuntu system will perform file system initialization and other critical operations during the first startup after flashing. Do not cut off power arbitrarily. Power off or shut down the device only after entering the command line interface.
Chapter 4 Software Debugging InstructionsUsername: linaro
Password: linaro
MAC and SN Code Flashing
sudo -i linaro MAC： echo 0 > /sys/block/mmcblk0boot1/force_ro echo "30A61219892D" > mac0.txt xxd -p -u -r mac0.txt > mac0.bin dd if=mac0.bin of=/dev/mmcblk0boot1 count=6 bs=1 seek=64 echo "30A61219892E" > mac1.txt xxd -p -u -r mac1.txt > mac1.bin dd if=mac1.bin of=/dev/mmcblk0boot1 count=6 bs=1 seek=80 SN： echo "HQATEVBAIAIAI0001" > sn.txt dd if=sn.txt of=/dev/mmcblk0boot1 count=17 bs=1 echo "HQATEVBAIAIAI0002" > sn.txt dd if=sn.txt of=/dev/mmcblk0boot1 count=17 bs=1 seek=32
Reboot the device after all writing operations are completed.
写完之后重启
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