# Hi-Link HLK-7628N
This is the base Nerves System configuration for the Hi-Link [HLK-7628N](https://www.hlktech.com/en/Product/Details/23)
<img alt="HLK-7628N front" src="assets/images/hlk-7628n-front.jpg" width="40%"/> <img alt="HLK-7628N back" src="assets/images/hlk-7628n-back.jpg" width="40%"/>
| Feature | Description |
| -------------------- | ------------------------------- |
| CPU | MIPS 24KEc, 580MHz |
| Memory | 128MB DRAM |
| Storage | 32MB NOR Flash |
| Linux kernel | 5.4 w/ OpenWrt patches |
| IEx terminal | UART `ttyS0` |
| GPIO, I2C, SPI | TODO |
| ADC | No |
| PWM | No |
| UART | 3, ttyS0 ~ ttyS2 |
| Camera | No |
| Ethernet | Yes, 5 port, 100M |
| WiFi | Yes |
| Bluetooth | No |
| Audio | No |
## Usage
TODO
## Firmware flash
### First time
TODO
### Upgrade
TODO
## Tech Details
TODO, add overview
### Linux kernel & OpenWrt patches
TODO
### Network setup
TODO
### Storage & flash layout
TODO
## Resource & reference
https://openwrt.org/toh/hwdata/hi-link/hi-link_hlk-7628n