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.

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 suite

Warning

Linux Users:

Windows Users:

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

Boards

Note

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