This repository contains a Quartus project which programs a Cyclone V GX starter kit with a data conversion board to act as a data acquisition system which communicates with a PC via UART. It is an R&D project for ATLAS
Information on the Cyclone V GX starter kit can be found here
Information on the Data Conversion Card can be found here
The Quartus project is written in verilog.
There are several python scripts which can be used to recieve waveforms from the Cyclone V board. All scripts require these packages:
- pyserial
- matplotlib
- numpy
The scripts can be found in the scripts/ subdirectory.
The scripts will attempt to open lpm_pll.v to read the clock frequency. This can be overridden with the '-r' parameter
These scripts retrieve a waveform from the Cyclone V. Command line settings are the same for both getData.py and getData_FIR.py.
getData.py gets just the waveform, while getData_FIR.py gets the waveform and the FIR response.
usage: getData.py [-h] [-p PORT] [-s] [-f FILENAME] [-n] [-r FREQ] View a single waveform coming from UART optional arguments: -h, --help show this help message and exit -p PORT, --port PORT The port to listen to -s, --save Save data to a file -f FILENAME, --filename FILENAME Name of data file -n, --noGraph Suppress graphical output -r FREQ, --freq FREQ Sampling frequency in Megahertz (default: 40.0) Example output for getData_FIR.py:
These scripts will show waveforms from the Cyclone V as they come in, acting as an oscilloscope.
As before, slowScope.py gets just the waveform, while slowScope_FIR.py gets the waveform and the FIR response.
usage: slowScope.py [-h] [-p PORT] [-m] [-f FILENAME] [-t TIMEOUT] [-r FREQ] View waveforms coming from UART optional arguments: -h, --help show this help message and exit -p PORT, --port PORT The port to listen to -m, --movie Save a 200 frame video -f FILENAME, --filename FILENAME Video filename -t TIMEOUT, --timeout TIMEOUT Port timeout (controls update rate) -r FREQ, --freq FREQ Sampling frequency in Megahertz (default: 40.0) Example output for slowScope.py:
This script calculates the amplitude, phase, and frequency of a sine wave, and plots amplitude and phase against frequency. It is best used with a logarithmic frequency scanned sine wave.
usage: Amplitude_Phase.py [-h] [-p PORT] [-m] [-f FILENAME] [-t TIMEOUT] [-r FREQ] [-d] Find amplitude and phase of sinewave from FPGA optional arguments: -h, --help show this help message and exit -p PORT, --port PORT The port to listen to -m, --movie Save a video -f FILENAME, --filename FILENAME Video filename -t TIMEOUT, --timeout TIMEOUT Port timeout (controls update rate) -r FREQ, --freq FREQ Sampling frequency in Megahertz (default: 40.0) -d, --delay Send delay signal before starting, resend after Example output:
This script sends a character to the Cyclone V. It can be used to change the delay, trigger source, and trigger slope.
usage: sendChar.py [-h] [-c CHAR] [-p PORT] Send a character to the FPGA via UART optional arguments: -h, --help show this help message and exit -c CHAR, --char CHAR character to send -p PORT, --port PORT The port to listen to Thanks to Dr. Richard Keeler for getting me involved with this project, and the folks at Terasic for helping me get the Data Conversion Card ADC settings right.