OPT4001DTSEVM: Error Initializing GUI TI-Latte - 0.8.4

Paulo Piai

Part Number: OPT4001DTSEVM
Other Parts Discussed in Thread: OPT4001

Tool/software:

Hello,

I purchased the EVM OPT4001DTSEVM and encountered the following error when opening the GUI TI-Latte:

#Executing .. OPT4001/OPT4001DTS_EVM/devInit.py
#Start Time 2025-02-28 13:51:50.446000
#Error:
# "OPT4001/OPT4001DTS_EVM/devInit.py", line 41, in
# File "C:\TexasInstruments_Projeto\projects\OPT4001/OPT4001DTS_EVM/mEVMSelector.py", line 83, in __init__
# assert z[2] == '00'
# AssertionError
#
# Done executing .. OPT4001/OPT4001DTS_EVM/devInit.py
#End Time 2025-02-28 13:51:50.626000
#Execution Time = 0.179999828339 s
#================ ERRORS:1, WARNINGS:0 ================#

The USB drivers were installed correctly by Windows (COM6 and COM7):

Python version:

Could you assist me?

Thank you!

7 months ago

0 Paulo Piai 7 months ago

Prodigy 20 points

I was using GUI version 1.0.2 and updated to version 1.0.3. After the update, the issue changed to the following error:

#======

#Executing .. OPT4001/OPT4001DTS_EVM/devInit.py

#Start Time 2025-02-28 16:40:52.801000

Device detected: OPT4001DTSEVM

Number of Control and Data ports not matched. Unlock all COM ports

#Error: index 0 is out of bounds for axis 0 with size 0

# "OPT4001/OPT4001DTS_EVM/devInit.py", line 67, in

# IndexError: index 0 is out of bounds for axis 0 with size 0

#Done executing .. OPT4001/OPT4001DTS_EVM/devInit.py

#End Time 2025-02-28 16:40:53.677000

#Execution Time = 0.875999927521 s

#================ ERRORS:2, WARNINGS:0 ================#

0 Joseph Scherphorn 7 months ago

TI__Expert 4480 points

Hello Paulo,

Thank you for using the E2E forum. I'm sorry your encountering difficulties and am looking into this issue.

Please comment out(#) lines 83-89 in the file nEVMSelector.py that comes as part of the GUI download save that file then exit Latte and try to open GUI again.

Please let me know if this makes a difference for you.

Thank you for your time,

Joseph Scherphorn