Intel MCS-51 (8051)¶

Configuration:	platform = `intel_mcs51`

The Intel MCS-51 (commonly termed 8051) is an internally Harvard architecture, complex instruction set computer (CISC) instruction set, single chip microcontroller (uC) series developed by Intel in 1980 for use in embedded systems.

For more detailed information please visit vendor site.

Contents

Examples
Stable and upstream versions
Packages
Boards

Examples ¶

Examples are listed from Intel MCS-51 (8051) development platform repository:

Stable and upstream versions ¶

You can switch between stable releases of Intel MCS-51 (8051) development platform and the latest upstream version using platform option in “platformio.ini” (Project Configuration File) as described below.

Stable¶

; Latest stable version
[env:latest_stable]
platform = intel_mcs51
board = ...

; Custom stable version
[env:custom_stable]
platform = intel_mcs51@x.y.z
board = ...

Upstream¶

[env:upstream_develop]
platform = https://github.com/platformio/platform-intel_mcs51.git
board = ...

Packages ¶

Name	Description
tool-stcgal	Open Source STC MCU ISP flash tool
toolchain-sdcc	Small Device C Compiler

Warning

Linux Users:

Install “udev” rules 99-platformio-udev.rules

Raspberry Pi users, please read this article Enable serial port on Raspberry Pi.

Windows Users:

Please check that you have a correctly installed USB driver from board manufacturer

Boards ¶

Note

You can list pre-configured boards by platformio boards command or PlatformIO Boards Explorer
For more detailed board information please scroll the tables below by horizontally.

Nuvoton¶

Name	Debug	MCU	Frequency	Flash	RAM
Generic N79E8432	No	N79E8432	22MHz	4KB	512B
Generic N79E844	No	N79E844	22MHz	8KB	512B
Generic N79E845	No	N79E845	22MHz	16KB	512B
Generic N79E854	No	N79E854	22MHz	8KB	512B
Generic N79E855	No	N79E855	22MHz	16KB	512B

STC¶

Name	Debug	MCU	Frequency	Flash	RAM
Generic STC15F204EA	No	STC15F204EA	11MHz	4KB	256B
Generic STC15F2K60S2	No	STC15F2K60S2	6MHz	60KB	2KB
Generic STC15W204S	No	STC15W204S	11MHz	4KB	256B
Generic STC15W404AS	No	STC15W404AS	11MHz	4KB	512B
Generic STC15W408AS	No	STC15W408AS	11MHz	8KB	512B
Generic STC89C52RC	No	STC89C52RC	11MHz	8KB	512B