Saturday, September 20, 2014

8051 Macro Assembler ASEM-51

In 1979 Intel has introduced the 8051 as the first member of the MCS-51 family of microcontrollers. Today hundreds of cheap 8051 derivatives are available from dozens of manufacturers. This makes the MCS-51 architecture so interesting for professionals and hobbyists.

8051 Macro Assembler ASEM-51

Intel had also defined an 8051 assembly language with bells and whistles for all the subtle peculiarities of the MCS-51 core, and offered a well-designed 8051 assembler, the legendary ASM51. Unfortunately, Intel obsoleted all its MCS-51 development tools in December 1993. The original (and IMHO best) 8051 assembler was gone and no longer available! ....... - W.W. Heinz,

ASEM-51 is a two-pass macro assembler for the Intel MCS-51 family of microcontrollers. It is running on the PC under MS-DOS, Windows and Linux. The ASEM-51 assembly language is a rich subset of the Intel standard that guarantees maximum compatibility with existing 8051 assembler sources.

"In the letter, they told me that they had used my ASEM-51 V1.2 to develop the motor-control software for a little Mars car prototype..."

8051 Macro Assembler ASEM-51 in Mars

They had validated several 8051 assemblers, and found ASEM-51 to be the most reliable and best documented one.

Thursday, September 18, 2014 - The Online 8052 Resource

A web site that is dedicated exclusively to the 8052 mirocontroller, related products (both hardware and software), and 8052 derivative chips. This includes the traditional 8052, 8051, 8032, and 8031 along with more modern derivatives such as the Atmel AT89S8252, and many derivatives by Silicon Laboratories, Philips, and many others. - The Online 8052 Resource

The SBC is a single-board computer designed to be both useful and instructive in illustrating certain concepts commonly encountered in 8052-based development. Designed to compliment The 8051/8052 Microcontroller Book that was authored by Craig Steiner, the webmaster of

Introduction to the SBC

The board was developed with the Atmel AT89S8252/AT89S8253 and Dallas DS89C420 in mind but can be used with any 40-pin 8052 pin-compatible derivative including the traditional true-blue 8052, 8051, 8032, 8031, etc..

SBCs were very popular before about the year 2000. Short of expensive in-circuit emulators (ICE), SBCs were one of the cheapest ways to quickly test 8052 firmware and/or experiment with the 8052 and attached devices....

Monday, September 15, 2014

Wireless Sensor Networks - MEMSIC

MEMSIC's WSN connect the physical environment with enterprise management and information systems to provide advanced monitoring, automation and control solutions for a range of industries.

Wireless Sensor Networks -  MEMSIC

WSN Nodes - A broad portfolio of wireless sensor nodes to meet the specific needs of your application for either end-user or OEM designs.

Sensor Boards - A variety of sensor boards and data acquisition cards that connect to our wireless modules and provide for both direct sensing connectivity as well as external sensor capabilities.

Gateways - A wide range of gateway boards. Multiple interfaces, including Ethernet, Wifi, USB and serial are supported to provide a base station for connecting an IRIS or MICA sensor network to an enterprise, industrial or custom network, or locally to a PC.

WSN Nodes - MCS410CA

This device uses the combination of RF and ultrasound technologies to establish differential time of arrival and hence linear range estimates.

WSN Nodes - MCS410CA

MEMSIC - Mems technology, Flow sensors, Accelerometers, Sensing technology, Inertial systems, Magnetometers, Tilt sensors.

One Tech Drive Suite 325 Andover, MA 01810, USA.