Note about installation procedures on Windows 10 64-bit

[wuwbobo2021]

Because the 64-bit Windows libjtagcore dynamic library doesn't work with pyjtagbs (I've tried it but got some "access violation" prompts), I installed the 32-bit Python 3.8 (removed the newer version of 64-bit Python from environment variables). Yes, the Python interpreter must be 32-bit to call a 32-bit DLL directly.

I extracted pyjtagbs-main.zip, cd into it, executed pip install .;

then I tried to run an example, and got this error message:

E:\pyjtagbs-main\examples>python testing_connections.py
Traceback (most recent call last):
  File "testing_connections.py", line 4, in <module>
    interface = jtagcore.JTAGCore()
  File "E:\Python38-32\lib\site-packages\jtagbs\viveris\jtagcore.py", line 70, in __init__
    self.lib = windll.LoadLibrary(
  File "E:\Python38-32\lib\ctypes\__init__.py", line 451, in LoadLibrary
    return self._dlltype(name)
  File "E:\Python38-32\lib\ctypes\__init__.py", line 363, in __init__
    if '/' in name or '\\' in name:
TypeError: argument of type 'NoneType' is not iterable

which is hard to understand by itself. Looking into the jtagcore.py:

            self.lib = windll.LoadLibrary(               
                find_library(liblocation)
            )

It probably means find_library() returns an empty list, causing the failure in windll.LoadLibrary().

I copied libjtagcore_x86.dll (which can also be found at pyjtagbs-main\jtagbs\viveris) into E:\Python38-32\Lib\site-packages\jtagbs\viveris, and that solved my problem. Is this the recommended way?

PS: It seems like you had been working on switching from libjtagcore to your own Python implementation (jtagraw.py), but haven't implemented jtag_rawrw() which is similar to jtagcore_push_and_pop_chain(). Is this crate helpful? https://docs.rs/jtag-taps/latest/jtag_taps https://github.com/PyO3/maturin