Unleash the Power of ATMEL MCU Boards
Details
Embedded high-quality Flash program memory
High-quality Flash is easy to erase and write, supports ISP and IAP, and is convenient for product debugging, development, production, and updating. The built-in long-life EEPROM can save key data for a long time to avoid loss when power off. The large-capacity RAM in the chip can not only meet the needs of general occasions, but also more effectively support the use of high-level language to develop system programs, and can expand the external RAM like MCS-51 single-chip microcomputer.
All I/O pins have configurable pull-up resistors
In this way, it can be individually set as input/output, can be set (initial) high-impedance input, and has strong drive capability (power drive devices can be omitted), making the I/O port resources flexible, powerful, and fully functional. use.
On-chip multiple independent clock dividers
Can be used for URAT, I2C, SPI respectively. Among them, the 8/16-bit timer has up to 10-bit prescaler, and the frequency division coefficient can be set by software to provide various levels of timing time.
Enhanced high-speed USART
It has the functions of hardware generation check code, hardware detection and verification, two-level receiving buffer, automatic adjustment and positioning of baud rate, shielding data frame, etc., which improves the reliability of communication, facilitates program writing, and makes it easier to form a distributed network and realize For the complex application of multi-computer communication system, the serial port function greatly exceeds the serial port of MCS-51 single-chip microcomputer, and because the AVR single-chip microcomputer is fast and the interrupt service time is short, it can realize high baud rate communication.
Stable System Reliability
AVR MCU has automatic power-on reset circuit, independent watchdog circuit, low voltage detection circuit BOD, multiple reset sources (automatic power-on reset, external reset, watchdog reset, BOD reset), configurable startup delay Run the program at any time, which enhances the reliability of the embedded system.
2. Introduction to AVR microcontroller series
The series of AVR single-chip microcomputers are complete, which can be applied to the requirements of various occasions. There are 3 grades in total, which are:
Low-grade Tiny series: mainly Tiny11/12/13/15/26/28 etc.;
Mid-range AT90S series: mainly AT90S1200/2313/8515/8535, etc.; (being eliminated or transformed into Mega)
High-grade ATmega: mainly ATmega8/16/32/64/128 (storage capacity is 8/16/32/64/128KB) and ATmega8515/8535, etc.
AVR device pins range from 8 pins to 64 pins, and there are various packages for users to choose according to actual conditions.
3. Advantages of AVR MCU
Harvard structure, with 1MIPS/MHz high-speed processing capability;
Super-functional reduced instruction set (RISC), with 32 general-purpose working registers, overcomes the bottleneck phenomenon caused by the single ACC processing of 8051 MCU;
Fast access to register groups and single-cycle instruction system greatly optimize the size and execution efficiency of the target code. Some models have very large FLASH, which is especially suitable for development using high-level languages;
When used as an output, it is the same as PIC's HI/LOW, and can output 40mA. When used as an input, it can be set as a tri-state high-impedance input or an input with a pull-up resistor, and has the ability to sink current from 10mA to 20mA;
The chip integrates RC oscillators with multiple frequencies, power-on automatic reset, watchdog, start-up delay and other functions, the peripheral circuit is simpler, and the system is more stable and reliable;
Most AVRs have rich on-chip resources: with E2PROM, PWM, RTC, SPI, UART, TWI, ISP, AD, Analog Comparator, WDT, etc.;
In addition to the ISP function, most AVRs also have the IAP function, which is convenient for upgrading or destroying applications.
4. Application of AVR MCU
Based on the excellent performance of the AVR single-chip microcomputer and the above characteristics, it can be seen that the AVR single-chip microcomputer can be applied to most embedded application scenarios at present.
The ATMEL MCU board is a highly reliable and versatile development tool designed for embedded systems. It offers a wide range of features and functions for a variety of applications ranging from consumer electronics to industrial automation. At the heart of this MCU board is an ATMEL microcontroller known for its high performance and low power consumption. Based on the AVR architecture, the microcontroller provides efficient and robust code execution and seamless integration with peripherals and external devices. The board is equipped with a variety of onboard peripherals, including GPIO pins, UART, SPI, I2C, and ADC, enabling seamless connection and communication with external sensors, actuators, and other devices. The availability of these peripherals provides developers with great flexibility in building applications. In addition, the ATMEL MCU board has sizable flash memory and RAM, providing ample space for storing code and data. This ensures that complex applications with large memory requirements can be easily accommodated. A noteworthy feature of the board is its extensive ecosystem of software development tools. ATMEL Studio IDE provides a user-friendly and intuitive platform for writing, compiling and debugging code. The IDE also provides an extensive library of software components, drivers and middleware to simplify the development process and accelerate time to market. ATMEL MCU boards support various communication protocols including USB, Ethernet and CAN, making them suitable for a wide range of applications including IoT, robotics and automation. It also offers a variety of power supply options, allowing developers to choose the most suitable power supply based on their specific application requirements. Additionally, the board is designed to be compatible with a wide range of expansion boards and peripherals, giving developers the flexibility to leverage existing modules and add functionality as needed. This compatibility ensures faster prototyping and easier integration of additional features. To assist developers, the ATMEL MCU boards come with comprehensive documentation including datasheets, user manuals and application notes. Additionally, a vibrant community of developers and enthusiasts provides valuable resources, support, and knowledge-sharing opportunities. In summary, the ATMEL MCU board is a reliable and versatile embedded system development tool. With its powerful microcontroller, extensive memory resources, diverse onboard peripherals, and strong development ecosystem, the board provides an ideal platform for creating and testing applications in various fields, bringing innovation to the development process and efficiency.
