BASCOM-8051 is the Windows BASIC COMPILER for the 8051 family. It is designed to run on W95/W98NT/XP and has all the features of BASCOM LT. In addition it has full support for arrays and the single floating point type.

Here are some features

• Structured BASIC with labels.
• Structured programming with IF-THEN-ELSE-END IF, DO-LOOP, WHILE-WEND, SELECT- CASE.
• Fast machine code instead of interpreted code.
• Variables and labels can be as long as 32 characters.
• Bit, Byte, Integer, Word, Long, Single and String variables.
• Compiled programs work with any 8051 uP such as AT89C1051, AT89C2051, 8031, 8032, 8051, 8052, 80552, 80535 and 80537 m Processors.
• Statements are highly compatible with Microsoft’s VB/QB.
• Special commands for LCD-displays , I2C chips and 1WIRE chips.
• Integrated terminal emulator with download option..
• Integrated simulator for testing.
• Integrated flash programmer and support for SPI, PG2051, PG302, SE512, SE514, TAFE. (hardware can be purchased separately)
• Editor with statement highlighting.
• Context sensitive help.
• For compatibility with BASCOM LT, there is also a 32-bit version of the BASCOM LT compiler.

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Do you want to learn about microcontrollers and embedded systems?
Are you studying the 8051 microcontroller?
Do you want to test your code for communicating with peripherals without having to first build the hardware?
Are you teaching an embedded systems course and would like your students to have access to a virtual 8051 training kit?

If the answer to any or all of the above is true, then you’ve come to the right place. The EdSim51 Simulator for the popular 8051 microcontroller is exactly the tool you need. And it’s FREE!

A virtual 8051 is interfaced with virtual peripherals such as a keypad, motor, display, UART, etc. The student can write 8051 assembly code, step through the code and observe the effects each line has on the internal memory and the external peripherals.
The Virtual Peripherals:

• Analogue-to-Digital Converter (ADC)
• Comparator
• UART
• 4 Multiplexed 7-segment Displays
• 4 X 3 Keypad
• 8 LEDs
• DC Motor
• 8 Switches
• Digital-to-Analogue Converter (DAC) – displayed on oscilloscope

EdSim51, developed by Jim Rogers, is a simulator unlike the many industry-standard simulators that are widely available
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8052 Simulator for Windows is a full-featured, but easy to use, Windows-based program which allows the user to simulate an 8052-compatible microcontroller within the Windows environment. Using a familiar interface similar to that of Microsoft’s Visual C++, the user may run, debug, and analyze his or her 8052 program prior to “burning” the program into an EPROM.
8052 Simulator for Windows provides the user with a level of control and flexibility that will greatly simplify the development of professional 8052 applications. 8052 Simulator for Windows is also ideal for students who are just learning about microcontrollers. And, unlike similar products offered by other companies, 8052 Simulator for Windows is very intuitive so you’ll be running your 8052 applications within minutes of downloading the program–rather than reading screens and screens of help files trying to get a simple program running in the simulator.

Also, unlike other simulators, 8052 Simulator for Windows will run under both Windows 95 and Windows 3.11. And why bother downloading other Windows 95-only simulators that require downloads of 1.5+ megabytes and cost more when 8052 Simulator for Windows is a comfortable 600k and offers so much more for a much lower price?source

Pinnacle is a professional development environment for the MCS-51 architecture (8051, 8032, Dallas 80C320, Atmel, etc.) that offers all the features that 90% of us developers, hobbiests, and students will need, at an economical price. Pinnacle now assembles programs nearly three times as fast as previous versions of Pinnacle. It also supports a simulated SPI bus, along with the Max147 A/D converter.

It also supports a simulated I2C bus, the Dallas DS1307 RTC, Dallas DS1803 Dual Pot, and Microchip 24LC164 Serial EEPROM. This means you can simulate I2C communications within Pinnacle!

Pinnacle also supports Philips P89C51RD+ with Programmable Counter Arrray (PCA). This is in addition to the Dallas 80C310, 80C320, 80C520 and 80C530, along with the Standard 8051, and Standard 8052 which were already supported.source