Hello,
by default LAVA will send the strings without any delay between each character. Some boards are not able to handle such input and will randomly drop some characters.
When test_character_delay is used, LAVA will wait N milliseconds between each character. This is usual fixing (it's a workaround in fact) the hardware issue.
Rgds
Le jeu. 9 avr. 2020 à 04:06, Larry Shen larry.shen@nxp.com a écrit :
Sometimes for some device, when lava enter “/lava-55904/bin/lava-test-runner /lava-55904/0”
It looks it will print: -sh: /lava-55904/bin/lava-test-runnera-55904/0: No such file or directory
Looks some character miss.
We increases the test_character_delay, looks useful, but I’m interested about the details, so for next which you mentioned in the code:
What exactly “slow serial problems(iPXE)” mean, could you explain more about it or any reference materteral I can had a look?
Then I could know: yes, it’s exactly the same problem I have.
Extends pexpect.sendline so that it can support the delay argument
which allows a delay
between sending each character to get around slow serial problems(iPXE).
pexpect sendline does exactly the same thing: calls send for thestring then os.linesep. _______________________________________________ Lava-users mailing list Lava-users@lists.lavasoftware.org https://lists.lavasoftware.org/mailman/listinfo/lava-users