AT91SAM9RL-EK

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The AT91SAM9RL-EK is currently the most popular evaluation board used in the embedded MCU and DSP fields. The board is targeted at low to middle-end embedded applications, with a Cortex-A5 processor and a low-power ARM926EJ-S core. It provides a wide range of features and capabilities, including an advanced and powerful software development environment.

The AT91SAM9RL-EK is based on the SAM9RL microcontroller unit (MCU) from Atmel. It includes a full range of features that enable users to develop and test applications and programs developed for embedded systems. It is also an ideal platform for testing and evaluating the performance of various processors, such as Cortex-A5 and ARM926EJ-S.

The board features a wide range of peripherals, including a high-speed on-board USB controller, an advanced security module, an independent watchdog timer, a programmable timer, and a power management controller. The board also includes a choice of memory expansion options, such as a DDR3 SDRAM, NAND Flash, NOR Flash, and a secure digital (SD) card. Additionally, the board includes a set of programmable I/O pins that can be used to interface with a variety of external devices.

The AT91SAM9RL-EK is integrated with Atmel\'s ARM926EJ-S processor, which is based on an ARMv5TEJ instruction set architecture. This powerful core has a range of features, including multi-core supported instruction set, advanced memory management, 32-bit address space, and a wide range of dedicated peripherals. The board also comes with an Atmel platform features access controller which is an independent security solution.

The board also includes a number of connectivity features such as 10/100 Ethernet port, two USB ports, two serial ports, and on-board I2C controller. The board\'s built-in 10/100 Ethernet port enables communication with external networks, while its two USB 2.0 ports allow users to easily connect external devices such as keyboards and cameras. The board is also capable of supporting a number of additional communication options such as CAN, UART, USB OTG, SPI, and Inter-Integrated Circuit (I2C).

The AT91SAM9RL-EK board features a powerful JTAG (Joint Test Action Group) interface which allows users to debug their code, access memory, and other internal resources. It also provides an efficient tool for system development, with support for the Atmel Studio, IAR Embedded Workbench, uVision, and Keil software development environments. Furthermore, the board comes with a variety of sample applications that can be used to quickly develop, debug, and evaluate the board\'s functions.

The AT91SAM9RL-EK is a versatile and powerful board, offering great flexibility for embedded system and MCU developers. It has an extensive range of features and capabilities, including advanced security solutions, easy-to-use software development environment, and a wide range of peripheral and communication options. This makes it perfect for low to middle-end embedded projects, giving developers the ability to quickly construct and test applications that can be used in a wide range of embedded system solutions.

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