I get lately a lot the HAL_UART_ERROR_FE (Frame Error). I have no where found what causes this Error in the first place. Can someone explain to me what was going wrong that i get this error?
A framing error can be caused by
Mismatched bitrate
Noise on the line
Starting the receiver while the other endpoint is already transmitting
Related
I'm trying to filter a signal and then analyse the values of the filtered signal using Tone.js / Web-Audio API.
I'm expecting to get values of the filtered signal, but I only get -Infinity, meaning that my connections between the nodes are wrong. I've made a small fiddle demonstrating this, however in my use-case I do not want to send this node to the destination of the context - I only want to analyse it, not hear it.
osc.connect(filter)
filter.connect(gainNode)
gainNode.connect(meter)
console.log(meter.getLevel())
I guess you tested the code in Chrome because there is a problem with Chrome which causes it to not process anything until it is connected to the destination. When using Tone.js that means you need to call .toMaster() at the end of your chain. I updated you fiddle to make it work: https://jsfiddle.net/8f7abzoL/.
In Firefox calling .toMaster() is not necessary therefore the following works in Firefox as well: https://jsfiddle.net/yrjgfdtz/.
After some digging I've found out that I need to have a scriptProcessorNode - which is apparently no longer recommended - so looking into Audio Worklet Nodes
I'm using libpcap as lib to write a C program for catching up coming IPs.
my code snippet as following:
struct bpf_program filter;
pcap_compile(pcap_handle, &filter, "icmp[icmptype]=0 and '(dst 16.11.26.100 or dst 16.11.27.100)'", 1, 0);
pcap_setfilter(pcap_handle, &filter);
But it didn't work, I still could see other dest Ips rather than only the above two Ips.
You should always check for errors from library routine calls. If you'd checked for errors from pcap_compile(), you would have seen that the compile failed (due to the single quotes, although the error message would probably just be "syntax error").
I fixed the problem, the right answer is here:
"icmp[icmptype]=0 and (dst 16.11.26.100 or dst 16.11.27.100)"
Just removed the single quota.
I am running the following MATLAB code on a system with one GTX 1080 and a K80 (with 2 GPUs)
delete(gcp('nocreate'));
parpool('local',2);
spmd
gpuDevice(labindex+1)
end
reset(gpuDevice(2))
reset(gpuDevice(3))
parfor i=1:100
SingleGPUMatlabCode(i);
end
The code runs for around a second. When I rerun the code after few seconds. I get the message:
Error using parallel.gpu.CUDADevice/reset
An unexpected error occurred during CUDA execution. The
CUDA error was:
unknown error
Error in CreateDictionary
reset(gpuDevice(2))
I tried increasing TdrDelay, but it did not help.
Something in your GPU code is causing an error on the device. Because the code is running asynchronously, this error is not picked up until the next synchronisation point, which is when you run the code again. I would need to see the contents of SingleGPUMatlabCode to know what that error might be. Perhaps there's an allocation failure or an out of bounds access. Errors that aren't correctly handled will get converted to 'unknown error' at the next CUDA operation.
Try adding wait(gpuDevice) inside the loop to identify when the error is occurring.
If either device 2 or 3 are the GTX1080, you may have discovered an issue with MATLAB's restricted support for the Pascal architecture. See https://www.mathworks.com/matlabcentral/answers/309235-can-i-use-my-nvidia-pascal-architecture-gpu-with-matlab-for-gpu-computing
If this is caused by the Windows timeout, you would see a several second screen blackout.
I am using ispin and got an error stating spin: trails end after 10 steps and transition fail.
How can I prevent this error from happening?
You prevent the error from happening in one of two ways:
fix your Promela model - you have a bug in your Promela that needs to be removed
you've found an error in the system that you are modeling. Congratulations. You now report the error to the person in charge of the system that you are modeling.
In practice, when you have a trail indicating an error, you next perform
spin -p -t <name of the model>.pml
which will print out the step by step model executions that lead to the error. You scour them to confirm that they are correct - if so, see #2 above; if not correct, see #1.
I had the same problem and it is fixed after putting -DVECTORSZ :
in the advanced parameters settings window of verification tab.I have also increased the physical memory to 2048.
I'm attempting to write an AAC file from the output stream of an AUGraph, and on playback my file only plays a buzzing noise, and I get the error ExtAudioFileWriteAsync -50.
I'd like to know what it means so that I can search for and destroy the problem.
Thanks to any Core Audio ninjas that can hook a brother up.
In case anyone else has this problem, the -50 error is a kAudio_ParamError error, defined in CoreAudioTypes.h.
Therefore, one of the parameters being passed to ExtAudioFileWriteAsync must be faulty.