What's this?

Have you tried to develop a key input feature on your small embedded platform with a serial input? It is not so easy to implement correctly because the input methodology is using a complicated protocol known as VT100. In my recent project "Natural Tiny Shell (NT-Shell)" provides VT100 compatible terminal control features for small embedded systems. However, the middleware is still large for small embedded processors such as 8-bit MCUs, 16-bit MCUs and also for small 32-bit MCUs like Cortex-M0. This "MicroShell" middleware provides a minimal terminal control for the platforms.

Features

  • Compatible with VT100 :)
  • Really simple.
    • The API of the microshell module has only two functions.
    • It consists of only two small modules in the core layer.
  • Highly portable.
    • Compatible with C89.
    • No dependencies. (even libc!)
    • No dynamic memory allocation. (no need a operating system!)
  • Small code foot print.
    • ROM: Less than 5.0KB
    • RAM: Less than 0.5KB

Edit Controls

  • Move to the start of line : CTRL+A or Home
  • Move to the end of line : CTRL+E or End
  • Move forward one character : CTRL+F or Right arrow
  • Move back one character : CTRL+B or Left arrow
  • Delete previous character : Backspace
  • Delete current character : CTRL+D or Delete
  • Cancel current input line : CTRL+C