Error occurred while executing External Mode MEX-file 'ext_comm': ExtTargetPktPending() call failed while checking for target pkt
显示 更早的评论
hi,
whenever i put 5 servos blocks in simulink, it keeps crashing and this error comes out:
Error occurred while executing External Mode MEX-file 'ext_comm':
ExtTargetPktPending() call failed while checking for target pkt
. i'm using arduino mega 2560
5 flex sensors
5 servo motors
windows 10 64-bit.
matlab 2017b
but if only one servo block used then it will not crash.
i see many people have this problem. and it still does not solve.
we pay for matlab and all staffs for education and work.
please help us or me solve it
if it is not important, we won't ask.
regards
Help please
采纳的回答
更多回答（3 个）
Scott Huang
2019-1-11
编辑：Scott Huang
2019-1-11
0 个投票
Hi
you can try this: set your baud rate to 921600. Probably your baud rate is below this value. This solved my same problem.
codertarget.arduinobase.registry.setBaudRate('mdl',921600)
mdl = your model name
3 个评论
SYED AFDAR syed
2019-1-11
Scott Huang
2019-1-11
you also need to update the same setting some where in the "code"
I couldn't find what is the maximum allowed baud rate in the serial port setting, but I think this is the limit of your system.
another case reported that 3rd party arduino board may not support high baud rate because of the chip, maybe this is the root cause for your case.
SYED AFDAR syed
2019-1-13
Félix Bertrand
2019-1-24
0 个投票
How? Please, i have the same problem
类别
在 帮助中心 和 File Exchange 中查找有关 Arduino Hardware 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
