MDMReader.jl is a Julia package to read "MDM" files. It is a work in progress and the API should not be considered stable.
Calling parse_mdmfile(file::String) parses the content of an MDM file.
The header is found in the header field and the data in the data field.
The data is stored as a data frame with the data points as rows.
julia> using MDMReader
julia> mdm = MDMReader.parse_mdmfile("test/test.mdm");
julia> mdm.data
222×7 DataFrame
Row │ VS VB VD VG IG ID IB
│ Float64 Float64 Float64 Float64 Float64 Float64 Float64
─────┼─────────────────────────────────────────────────────────────────────────
1 │ 0.0 0.0 0.1 0.0 4.421e-10 -7.641e-10 -1.3915e-8
2 │ 0.0 0.0 0.1 0.05 2.6524e-9 5.054e-10 -7.547e-9
3 │ 0.0 0.0 0.1 0.1 -2.3342e-9 7.845e-10 1.4195e-8
4 │ 0.0 0.0 0.1 0.15 2.5825e-9 -7.61e-10 -1.4968e-8
...The minimum to parse the files in https://github.com/google/skywater-pdk-sky130-raw-data/tree/main/sky130_fd_pr/cells has been implemented. There are still many missing pieces for full coverage like including the other modes and sweep types, as well as handling complex numbers.
The parser currently parses all data eagerly into a dataframe. However, the data format is engineered so that random access in the file can be done efficiently. For larger files it might be required to move to a more query based API instead of eagerly reading all data.
Make better show methods for the data types.