Hantek-DSO5000-Series-CSV-to-PulseVIew

Convert Hantek DS0 CSV file to PulseView Value Change Dump data file for protocol analysis.

The problem

The Hantek DSO 5000 Series has no protocol analysis, but can save to a time based CSV file. Nothing I've found can interpret said file, so a conversion is nessesary.

The Solution

Write a small nodejs conversion script to convert DSO 5000 Series CSV files to something PulseView can understand. PulseView CSV import is as of this time buggy, in that it forgets the time-base, making protocol analysis bug out. PulseView import Value Change Dump data apears to work correctly, so I'll use that format.

What you need

1. NodeJS
2. PulseView

How to use

1. Copy convert.js in to a folder.
2. Copy the Hantek CSV file in to the same folder.
3. Edit convert.js and set your desired input and output file names.
4. Run the command. node convert.js
5. Launch PulseView.
6. Click Create new session.
7. Click Import Value Change Dump data.
8. Select the output file created by the converter. (value-change-dump-data.vcd)
9. Select a decoder, attach to the D0 line.
10. UART for example, to guess the baud rate, match the yellow bit width's to the average smaller pulse width's.

Default options

Options are hard coded, editable top of the file convert.js.

1. const FILE_IN = "WaveData50.csv"
2. const FILE_OUT = "value-change-dump-data.vcd"
3. const VOLTAGE = 2.5
4. const TIME_MULTIPLIER = 10000000
5. const TIME_SCALE = "100 ns"

Setting VOLTAGE

Somewhere near the mid range of the voltage logic. If 5 volts, above or below 2.5 will determine a 1 or 0.

Setting TIME_MULTIPLIER

Whatever number is required to match the TIME_SCALE. eg In the input file a time of 2.00000E-07 = 0.0000002s = 200ns = 2 at 100ns(TIME_SCALE) intervals. So 0.0000002 * 10000000(TIME_MULTIPLIER) = 2.

Setting TIME_SCALE

TIME_SCALE for one probe on a DSO5205P is 100 ns. The input file (WaveData50.csv) shows timebase=40000000(ps), this doesn't make sense to me.

To do

Auto detect TIME_SCALE & TIME_MULTIPLER by looking at the time intervals from the input CSV file.