[Libre-soc-bugs] [Bug 517] Define JTAG pins and set up with litex for ulx3s85f

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Fri Apr 9 22:50:48 BST 2021


https://bugs.libre-soc.org/show_bug.cgi?id=517

--- Comment #103 from Cole Poirier <colepoirier at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #102)
> https://images-na.ssl-images-amazon.com/images/I/61wWDd92ZnL._AC_SL1001_.jpg
> 
> right.  this is the one i got.  see at the top, there's a jumper with
> 
> 3.3v
> VCC
> 5V
> 
> and right at the bottom there's:
> 
> VCC
> GND
> TXD
> RXD
> RTS
> CTS
> 
> that means that the VCC pin is connected directly to VCCIO (pin 4)
> 
> therefore this is very simple: remove the jumper entirely.

Ok so no VCC but yes GND?

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