4 Assignment 3: 17-Bit Resolution

In this assignment, the ADC of the ATtiny1627 will be configured to sample the DAC reference from the AC module with a 17-bit resolution. The ADC will be in Burst mode, and a sample will be triggered by an RTC overflow event as in assignment 2.

Typical use cases where high-resolution ADC is useful:
  • Strain gauges (can be used to measure weight)
  • Thermocouples

The sampled ADC data will be transmitted over USART to the Data Visualizer. The Data Visualizer will be configured to graph the 12-bit resolution against the 17-bit resolution measurement.

The Microchip Studio Solution Assignment3 includes the required starting point for this assignment and should be available in the training material folder at the following path: Assignment3.

  • Objectives
    • Understand how oversampling can be used to increase the resolution of a measurement
    • Increase the resolution of the ADC to 17-bits by oversampling