luke
/
openFPGALoader
mirror of https://github.com/trabucayre/openFPGALoader.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #253 from Chandler-Kluser/master 

Updated Troubleshooting
This commit is contained in:
Gwenhael Goavec-Merou 2022-09-24 07:30:40 +02:00 committed by GitHub
parent 08af4a0247 3c619a5fd2
commit fa262035f2
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
doc/guide/troubleshooting.rst
View File

@ -14,3 +14,32 @@ Gowin device could not communicate since last bitstream flashed. (issue `#206 <h
Gowin's FPGA may fails to be detected if **JTAGSEL_N** (pin 08 for *GW1N-4K*) is used as a GPIO.
To recover you have to pull down this pin (before power up) to recover JTAG interface (*UG292 - JTAGSELL_N section*).
JTAG init failed
================
Avoid using USB hubs and connect it directly to your PC USB port.
Tang Primer 20k program slow and stucked (issue `#250 <https://github.com/trabucayre/openFPGALoader/issues/250>`_)
==================================================================================================================
Check your openFPGALoader version:
.. code:: bash
openFPGALoader -V
If it is older than release then v0.9.0, install the most recent version (from commit `f5b89bff68a5e2147404a895c075773884077438 <https://github.com/trabucayre/openFPGALoader/commit/fe259fb78d185b3113661d04cd7efa9ae0232425>`_ or later).
Cannot flash Tang Nano 9k (issue `#251 <https://github.com/trabucayre/openFPGALoader/issues/251>`_)
===================================================================================================
This is a device issue, erase its Embedded Flash using Official GoWin Programmer (preferentially in Windows) and SRAM too, then you can use openFPGALoader again.
Unable to open FTDI device: -4 (usb_open() failed) (issue `#245 <https://github.com/trabucayre/openFPGALoader/issues/245>`_)
============================================================================================================================
Edit your `/etc/udev/rules.d/99-ftdi.rules` file exchanging your programming device permissions.
For more information, check the udev section from `this guide <install.rst>`_