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Software • 8051 C-Compiler uC51 •

The 8051 C-Compiler uC51 is well known for it's high quality and high density code. You can develop high quality software for any 8051 in ANSI C. µC/51 comes with an incredible optimizing compiler, you can even write software in ANSI C on 8051's with 1kB of code memory! µC/51 is absolutely complete: user friendly multi file editor, compiler, assembler, downloader, source level debugger. It's a complete toolchain - You won't need anything else.

Target support

• All 8051's are supported, no specific assumptions
• Different memory models exactly meet your demands
• Full 32-bit IEEE floating point support
• Write interrupt handlers in C
• Access up to 16 MB code and address space
• Place global objects in any space: direct internal RAM, indirect internal RAM, external RAM, code, bit

ANSI C Compiler

• Full support for the ANSI C language. NOT a reduced subset of C or extended K&R C.
• Especially designed for ext. Harvard architectures
• Include assembly language in your C programs
• compiler writes 100% assembler sourcecode
• Integral support for source level debugging
• Superior code quality due to powerful optimizer

Assembler

• Fast macro assembler with rich directives
• Access assembler functions from C

Linker

• Strip linker compresses the code to the minimum
• Output formats: binary and Intel Hex (more soon...)

Downloader / source level debugger

• Complete OS for downloading programs on development boards (RAM) included as source code
• Write programs to a Flash memory
• C level single line stepping
• Terminal program included

Libraries

• Subset of ANSI C library (including strings and printf())
• I2C bus librarie with complete sourcecode
• Open printf()-formatter (i.e. write your own lcd_printf())

Included demos

• Many demo sourcecodes included, up to a FFT (Fast Fourier Transformation)
• Demos for generic 8051's, Infineon's C515, Texas Instrument's MSC1210, Analog Devices ADuC8xx, ...

Compare with the competitors

Download their demos from their websites:
K----: 2kB restricted (no floating point),
R----------: 4kB restricted (floating point):

• Sieve (Sieve of Erathostenes):
  µC/51 V1.20: 142 Bytes Modul, 897 Bytes total ......
  K---- V6.21: 165 Bytes Modul, 1261 Bytes total
• FFT (full sourcecode included, floating point required):
  µC/51 V1.10: 6257 Bytes total ......
  R---------- V6.1: 6735 Bytes total (demo won't save)

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