ATSAMD20G17A-ANT

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The ATSAMD20G17A-ANT is a microcontroller from the SAMD20 series from Microchip Technology Inc, and is particularly chosen and manufactured for use as an embedded device for a range of networked applications. This microcontroller is versatile, with a varying range of features, making it well suited for various types of applications. In this article, we will understand the application field and working principle of the ATSAMD20G17A-ANT microcontroller.

Features of ATSAMD20G17A-ANT Microcontroller

The ATSAMD20G17A-ANT microcontroller consists of a wide variety of hardware and software features which make it a perfect choice for embedded applications. It has 32-bit ARM Cortex-M0+ Core, a total of 256 KB flash memory, 48 KB RAM, up to 21 programmable I/O pins, 16 analog channels, up to 3 PWM channels, 4 UART, 10 timers, 2 capacitive touch channels, 1 real-time clock, 2 Serial Peripheral Interfaces (SPI), 1 Inter-Integrated Circuit (I2C), 1 Universal Serial Bus (USB) and on-chip temperature sensor. It also has on-board connectors for simple wireless communication including an integrated 32-bit SAMD20 microcontroller and ATA8510E transceiver, which enable low power wireless connections.

Application Field of ATSAMD20G17A-ANT

The ATSAMD20G17A-ANT microcontroller is used in a variety of embedded applications. Being low power and having small form factor, ATSAMD20G17A-ANT microcontroller is suitable for small devices such as wearables, like smartwatches, and home automation products, like smart thermostats and lights. It is also used in industrial control systems and in devices for the Internet of Things (IoT). All of these are possible because of its low power consumption, highly integrated peripherals, and flexible digital and analog options.

Working Principle of ATSAMD20G17A-ANT

The ATSAMD20G17A-ANT microcontroller works on the synchronous interrupt mode. Every peripheral is connected to the system bus along with memory slots. All the peripherals can be independently operated by task scheduler based on the interrupt signals they provide. When an event occurs within a specific peripheral, an interrupt signal is generated and sent to the system bus. Upon receipt of the interrupt signal, the task scheduler will assign a task to the corresponding peripheral and start on the execution.

The microcontroller then executes this task and informs the task scheduler of its completion by sending the status of the interrupt signal. The task scheduler then checks the peripheral specific status to check whether the task has been completed as expected. After confirmation of the status, the task scheduler will assign the next task to the same peripheral or assign a new peripheral for a task.

The ATSAMD20G17A-ANT features a wide range of operational modes including the low-power Sleep, Idle, and Run modes. The low-power Sleep mode can be activated when the microcontroller is idle and there are no tasks to be executed. This mode saves a relatively large amount of power and is useful for extending the battery life of wearables, as well as for saving energy with devices in home automation, industrial control, and IoT applications.

Conclusion

The ATSAMD20G17A-ANT microcontroller is a powerful and versatile device designed to provide efficient performance in a range of embedded applications. Its feature set makes it a great choice for wearables and home automation products, industrial control systems, and devices for the IoT. It has multiple low-power modes and integrated peripherals, that help in providing a complete solution to its users.

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