pyDigitalWaveTools 0.4

python library for operations with VCD and other digital wave files

pyDigitalWaveTools

python library for operations with VCD and other digital wave files

Feature list

• parse VCD (std 2009) files to intermediate format
• write VCD files, user specified formaters for user types, predefined formaters for vectors, bits and enum values
• dump intermediate format as simple json

Output json format

scope
{ "name": "<scope name>"
  "children" : {"<children name>" : child}
}

child can be scope or signal record

signal record 
{ "name": "<signal name>"
  "type": {"sigType": "<vcd signal type>",
           "width": <bit width of signal (integer)>},
  "data": [<data records>],
}

data record format
[<time (number)>, <value (string, format dependent on datatype)>]

Related open source

• verilog-vcd-parser - Python, A parser for Value Change Dump (VCD) files as specified in the IEEE System Verilog 1800-2012 standard.