Since this is a legacy version, official distribution from HP InfoTech has been replaced by newer versions (3.x). However:
Pricing (historical): A single Professional license was approximately $250–$300. Upgrades to newer versions cost extra.
Note: Always respect software licensing. Piracy harms the ecosystem, especially for niche tools like this.
CodeVisionAVR 2.05.0 Professional represents a significant milestone in the history of development tools for Atmel (now Microchip) AVR microcontrollers. Released in the late 2000s (approximately 2008-2009), it is widely remembered as one of the most efficient and user-friendly C compilers for the AVR platform before the dominance of AVR-GCC and Atmel Studio 6/7.
Below is a detailed write-up covering the software’s architecture, key features, licensing model, and its place in the embedded development ecosystem.
If you describe what you were trying to do when you saw “draft,” I can give a more specific explanation.
CodeVisionAVR 2.05.0 Professional: A Deep Dive into the Classic AVR Integrated Development Environment
For embedded systems engineers and hobbyists working with the Atmel (now Microchip) AVR microcontroller family, CodeVisionAVR 2.05.0 Professional remains a landmark version of one of the most efficient Integrated Development Environments (IDEs) ever created.
While newer versions have since been released, the 2.05.0 Professional edition is often cited for its stability, its incredibly powerful Automatic Program Generator (CodeWizardAVR), and its highly optimized C compiler. Here is an exploration of why this specific version became a staple in the industry and what it offers. What is CodeVisionAVR?
CodeVisionAVR is an Integrated Development Environment designed specifically for the AVR RISC family of microcontrollers. Unlike generic IDEs, it was built from the ground up to understand the specific architecture of AVR chips, allowing it to produce tighter, faster code than many of its contemporaries.
The Professional edition of version 2.05.0 is the full-featured tier, removing the code-size limitations found in the Evaluation or Standard versions and providing advanced library support for complex hardware. Key Features of Version 2.05.0 Professional 1. The ANSI C Compatible Compiler
The heart of CodeVisionAVR is its C compiler. Version 2.05.0 introduced refined optimization algorithms that allowed developers to squeeze complex logic into small flash memory footprints. It supports:
Bit-level access: Directly manipulating I/O pins using a simple syntax.
Efficient Memory Management: Handling SRAM, Flash (EEPROM), and external memory with ease.
Interrupt Handling: Simplified syntax for writing Interrupt Service Routines (ISRs). 2. CodeWizardAVR: The "Secret Weapon" CodeVision AVR 2.05.0 Professional
Perhaps the most famous feature of the 2.05.0 release is the CodeWizardAVR. For many developers, this tool alone justifies the software. It allows you to: Select your chip (e.g., ATmega32, ATtiny2313).
Graphically configure clock speeds, timers, UART, ADC, and SPI. Configure external bus interfaces and LCD settings.
Automatically generate all the initialization code in seconds.
This eliminates hours of datasheet digging and prevents common mistakes in register configuration. 3. Extensive Library Support
The Professional edition comes packed with high-level libraries that make interfacing with peripherals trivial. This includes built-in support for:
Alphanumeric and Graphic LCDs (using drivers like the KS0108 or SED1335). Bus Protocols: I2C, SPI, and 1-Wire.
Memory Devices: Support for MMC/SD/SDHC card file systems (FAT12, FAT16, and FAT32).
Sensors: Easy implementation for DS1820/DS1822 temperature sensors. 4. Integrated Chip Programmer
Version 2.05.0 features a robust built-in programming tool that supports a wide range of hardware, including the STK500, AVRISP, and various USB programmers. This allows for a "Compile and Burn" workflow that is incredibly fast during the debugging phase. Why Version 2.05.0 Still Matters
In the world of embedded systems, "newer" isn't always "better." Many legacy industrial projects were compiled and certified using the 2.05.0 toolchain. Because this version is lightweight, it runs perfectly on older hardware and Windows versions (like XP or 7) where modern, bloated IDEs might struggle.
Furthermore, its COFF object file generation allows for seamless debugging within Proteus VSM or Atmel Studio, providing a high-quality simulation environment for developers who want to test their code before hitting the hardware. System Requirements
One of the charms of CodeVisionAVR 2.05.0 is its low overhead:
OS: Windows 2000/XP/Vista/7 (runs on Windows 10/11 in compatibility mode). RAM: 256MB minimum. Disk Space: Approximately 100MB. Conclusion
CodeVisionAVR 2.05.0 Professional represents a perfect balance between simplicity and power. By automating the "boring" parts of microcontroller setup via CodeWizardAVR and providing a surgical C compiler, it allows engineers to focus on their application logic rather than register-level troubleshooting. Since this is a legacy version, official distribution
Whether you are maintaining a legacy industrial system or learning the ropes of 8-bit microcontrollers, this version of CodeVision remains a reliable, high-performance choice for the AVR ecosystem.
CodeVisionAVR 2.05.0 Professional is a high-performance ANSI C cross-compiler , Integrated Development Environment (IDE), and Automatic Program Generator designed specifically for the
family of microcontrollers. Released by HP InfoTech, this version represents a mature stage of the software, widely recognized for its "CodeWizard" feature that automates hardware initialization. 🛠️ Key Features and Capabilities
The Professional/Advanced version provides a comprehensive suite of tools for embedded development: CodeWizardAVR:
An automatic program generator that allows users to configure chip peripherals (timers, UART, ADC, etc.) through a GUI without manually consulting datasheets. Integrated IDE:
Includes a source code editor with auto-indentation, syntax highlighting, and autocomplete for both C and AVR assembly. Chip Programmer:
A built-in In-System Programmer (ISP) that supports hardware like the Atmel STK500, AVRISP MkII, and AVR Dragon for direct chip flashing after compilation. ANSI C Compiler:
Optimized specifically for the AVR architecture, offering features like bit-level access to I/O registers and direct EEPROM/FLASH memory access. CodeVision 📊 Technical Specifications Supported OS Windows XP, Vista, 7 (32-bit and 64-bit versions) Data Types bit, bool, char, int, long, 64-bit long, and float Output Formats HEX, BIN, ROM, COFF (for debugging), and OBJ Memory Models
Tiny, Small, Medium, and Large (supporting up to 256k+ Flash) Optimizers
Peephole, common sub-expression elimination, and loop/branch optimization 📚 Extensive Library Support
CodeVisionAVR 2.05.0 includes numerous pre-built libraries to accelerate development:
Libraries for alphanumeric LCDs (Hitachi HD44780) and various graphic LCD/OLED controllers. Communication: Software and hardware I2C/TWI, SPI, and 1-Wire libraries.
SD/MMC card support with implemented FAT12, FAT16, and FAT32 file systems. Sensors & RTC:
Direct support for LM75 temperature sensors and DS1302/DS1307 Real Time Clocks. CodeVision HP InfoTech - CodeVisionAVR C Compiler CodeVisionAVR 2
CodeVisionAVR 2.05.0 Professional is a legacy version of the Integrated Development Environment (IDE) and C cross-compiler developed by HP InfoTech
for the Atmel (now Microchip) AVR 8-bit microcontroller family. It is widely recognized for its CodeWizardAVR
, an automatic program generator that simplifies the initialization of microcontroller peripherals. HP InfoTech Core Components & Features ANSI C Compiler
: Implements all elements of the ANSI C language tailored for the AVR architecture, focusing on compact and efficient code generation. CodeWizardAVR
: An automatic code generator that allows users to set up timers, UART, ADC, and external interrupts via a graphical interface. Integrated Tools In-System Programmer : Built-in support for various programmers like the Atmel STK500
: An integrated serial terminal for debugging communication. Output Formats : Generates files for flashing, and
(Common Object File Format) for source-level debugging in tools like Microchip Studio (formerly Atmel Studio). HP InfoTech Supported Hardware Libraries
The version 2.05.0 includes built-in libraries for common hardware components, such as: : Alphanumeric LCD modules (up to 4x40 characters). Maxim/Dallas
DS1820/DS18B20 1-Wire temperature sensors and National Semiconductor LM75.
: Philips PCF8563/PCF8583 and Maxim DS1302/DS1307 Real-Time Clocks. : Standardized support for (Philips Bus) and protocols. EasyElectronics.ru CodeVisionAVR 2.05.0 - Радиоактив
The proper post-build actions and memory configurations for CodeVisionAVR 2.05.0 Professional depend on your specific AVR microcontroller. However, here are the standard correct settings and common post-build steps:
From the IDE, go to Tools → CodeWizardAVR. A dialog appears.
Even with the visual tools, experienced users can push CodeVision AVR 2.05.0 further:
Solution: Verify you have entered the Professional license key. Go to Help → About. If it says "Professional", the limit is lifted. If not, re-enter key.