Tag Archives: Real-time control

ATtiny1607 – A TinyAVR MCU Family For Real-Time Control Systems

In continuation of the development of microcontrollers for a real-time control system, Microchip unveils a new set of microcontroller family based around the known Atmel ATtiny family called the ATtiny1607 family. Microchip is hoping to continue support for the Atmel’s famous AVR set of microcontrollers.

Microchip recently launched the PIC18 Q10 family of MCUs earlier on that features multiple intelligent Core Independent Peripherals (CIPs) and was tailored for real-time control systems. The ATtiny1607 family of AVR® microcontrollers (MCUs) offers similar features like the PIC18 Q10 MCUs, it is equipped with high-speed integrated analog, hardware-based Core Independent Peripherals (CIPs) and low-power performance for efficient, real-time control and sensor node applications in a small physical footprint to help optimize board layout.

The family offers a lot of options; it is made up of about ten different MCUs coming in different package type from DIP to QFN, which makes it ideal for space-constrained closed-loop system especially the 3 x 3 mm 20-pin QFN package. The family offers a broad range of memory, pin and package configurations, program memory from  2KB to 16KB, SRAM from 256 Bytes to 1024 Bytes, pin count from 8 to 24 pin packages, and MCUs in the family all have 12 ADC input.

The family offers an accurate and temperature-stable 20 MHz internal RC oscillator, a configurable custom logic (CCL) and core independent peripherals. These inbuilt features nullify the need for external components which will help it in reducing the cost of the final product.

Below are some of the ATtiny 1607 key attributes:

  • Internal 20 MHz oscillator
  • Up to 16 KB of FLASH memory
  • Up to 12-channel, 115 ksps 10-bit ADC
  • Cyclic Redundancy Check (CRC) scan
  • 16-bit Real-Time Clock and Periodic Interrupt Timer
  • Configurable Custom Logic (CCL) peripheral
  • 3-channel Peripheral Event System
  • Analog Comparator with a scalable reference input
  • Configurable, internally generated reference voltage
  • USART / SPI / dual-mode TWI
  • Available with up to 22 I/O

Getting started to work with the ATtiny 1607 is straightforward. An evaluation kit called ATmega4809-XPRO Evaluation Kit is available for getting starting with the family. It is the ideal platform for rapid prototyping of the new tinyAVR and even megaAVR® MCUs. The kit is a USB powered kit and features an onboard programmer and debugger that seamlessly integrates with Atmel Studio and other peripherals. The board also has a MikroBUS™ -compatible socket, allowing you to easily add sensors, actuators or communications interfaces from Mikroelektronika’s extensive library of click boards™.

ATmega 4809 Evaluation Kit

Development time for the ATtiny1607 can be greatly reduced by using Atmel START, an intuitive web-based graphical configuration tool for embedded projects. Atmel START generates factory-validated C-code to help get an embedded design started. More informaton about Atmel START can be found here.

The tinyAVR® microcontrollers are well-suited for a wide range of applications including industrial, consumer, appliance, automotive and Internet of Things (IoT) sensor nodes. More information about the product family is available on the product page.

PIC18 Q10 Product Family – PIC® MCUs for Closed-loop Control

Real-time control systems usually are closed-loop control systems where one has a tight time window to gather data, process that data, and update the system. If the time window is missed, then the stability of the system is degraded. This reduced control can be catastrophic to some applications, such as power conversion and advanced motor control. Many semiconductor companies are claiming their MCUs can support real-time control applications, but they don’t usually offer an accurate real-time control system. Microchip has unveiled a new PIC18 Q10 family featuring multiple intelligent Core Independent Peripherals (CIPs) that help designers to simplify development and enable quick response time to system events.

Microchip which in 2016 acquired Atmel, the company famously known for the Atmega 328P, the microcontroller behind the Arduino Uno has launched a set of microcontrollers that are tailored for real-time control system called the PIC18 Q10 Family of Microcontrollers. The new family is designed for a robust system with intelligent analog, configurable peripherals and operates at 5V, making it ideal for noise prone applications because 5V offers more noise immunity as compared to 3.3V MCUs.

The PIC18 Q10 family of MCUs features CIP (Core Independent Peripherals) that provide the ability to accomplish tasks in hardware while freeing up the Central Processing Unit (CPU) to do other tasks or go to sleep to save power. The hardware-based peripherals offload timing-critical and core-intensive functions from the CPU, allowing it to focus on more complex functions within the system. This decreases system complexity by eliminating additional code and external components, reduces power consumption, allowing for deterministic response time as well as decreased validation time.

The family is made up of about seven different MCUs all coming in different package type from DIP to a QFN, making it ideal for space-constrained closed-loop control system while still applicable for hobbyist and enthusiast by leveraging on the DIP package version. The products offer Intelligent Analog peripherals including Zero Cross Detect (ZCD), on-chip comparators and a 10-bit ADC with Computation (ADC2) automating Capacitive Voltage Divider (CVD) techniques for advanced touch sensing, averaging, filtering, oversampling and automatic threshold comparison.

These are some of the PIC18 Q10 Key attributes to take note off:

  • 64 MHz internal oscillator
  • Up to 128 KB Flash program memory
  • Up to 1 KB data EEPROM
  • Up to 3615 B data SRAM
  • 10-bit ADC2 (ADC with Computation), up to 35 channels
  • Four 16-bit timers
  • Complementary Waveform Generator (CWG)
  • Two comparators
  • Zero Cross Detect (ZCD)
  • Windowed Watch Dog Timer (WWDT)
  • Peripheral Pin Select (PPS)
  • Data Signal Modulator (DSM)
  • Up to 8 Configurable Logic Cells (CLC)
  • 5-bit DAC
  • EUSART, SPI, and I2C
  • Available in 28-, 40- and 44-pins

The PIC18 Q10 family can be used with the curiosity development boards which are cost-effective MCU development platforms and can be used to accelerate the development of the MCUs family. The family is also supported by MPLAB® Code Configurator (MCC), a free software plug-in that provides a graphical interface to configure peripherals and functions specific to your application.

Based on its overwhelming featuers, the PIC18 Q10 family is suited for a broad range of applications including industrial control, consumer, automotive, touch sensing, advanced motor control, and the Internet of Things (IoT). More information about the product family can be found on the product page.