Skip to content

Embedded Display Interfaces in Linux

An overview of common embedded display interfaces and the Linux display stack around them.

This English edition retains the original diagrams and practical code or command examples.

Reference diagram 1

Reference diagram 2

Reference diagram 3

Reference diagram 4

Reference diagram 5

Commands and examples

- CS: 片选信号——(如果有多片可接译码器,通过地址进行访问)
- WR:写入数据控制信号——(连接CPU的RD或IOR)
- RD: 读取数据控制信号——(连接CPU的WR或IOW)
- D[7:0]:8 位双向数据线——(连接CPU数据总线)
- RST(RES):复位线——(连接系统总线RESET)
- D/I(DC):命令/数据标志(0,读写命令;1,读写数据)

Practical notes

Validate pin multiplexing, clocks, power sequencing, kernel configuration, and device-tree bindings on the target board before drawing conclusions from a test result.