Osciloscopio basado en nios ii

Abstract

This project involves the implementation of an oscilloscope, using the NIOS II Altera core which allows to implement a embedded computer in a FPGA. One of the main features of the NIOS II processor is that it’s logic can be programmed using C/C++ with NIOS II IDE software, which allows to easily understand and improve the design. We used DE 2 Altera board for the development of our project, which has a CYCLONE II FPGA that is compatible with NIOS II. To implement the oscilloscope we use 3 stages: coupling of the input signal, Analog Digital Conversion (ADC) and digital signal processing (DSP). In the first stage the signal is amplified and coupled for subsequent digital conversion of the second stage. Finally, the DSP stage is the core system which performs the following functions: interpretation of the control directives done by the user interface, control of the coupling and ADC stages, digital signal processing received by the ADC stage, final printing in VGA format.