vivado-risc-v
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eugene-tarassov
make flash: connection refused
Hi Eugene,
I run "make CONFIG=rocket64b1 BOARD=nexys-a7-100t flash" and get the following error: Connection refused
When I check the make output, I see:
env HW_SERVER_URL=tcp:localhost:3121
xsdb -quiet board/jtag-freq.tcl
rlwrap: warning: your $TERM is 'xterm-256color' but rlwrap couldn't find it in the terminfo database. Expect some problems.
Connection refused
while executing
"error $message"
(procedure "connect" line 143)
invoked from within
"connect -url $::env(HW_SERVER_URL)"
(file "board/jtag-freq.tcl" line 1)
make: *** [Makefile:310: flash] Error 1
the setting for HW_SERVER_URL implies you expect Ethernet connection, while I connect my nexys-a7-100t through USB. Could this be a problem?
Sincerely, Stas
You need to start hw_server, which is Xilinx JTAG debugger. It listens for TCP/IP connections and can talk to JTAG through USB.
I got it working! Thanks, Eugene! On a separate note, is there a simple way to add Vitis to this project? The reason of my question is I'd like to write some code to run on your RV h/w and Vitis seems like a great option for this...
I got it working!
Super!
On a separate note, is there a simple way to add Vitis to this project?
Yes, you can use Vitis or Eclipse+CDT+TCF to edit, build, run and debug. Both can talk to RV h/w using hw_server. I prefer to use Eclipse, because Vitis is same thing plus a lot of additional stuff which I never need.
However, there is no single button "create RV application" - you will need some knowledge of CDT and TCF to setup a RV software project.