I want two scripts integrate in to one script.
Scripts for sensors SHT10 and MAX31855. Both make use of software SPI.
The SHT10 use GPIO.BOARD and the MAX31855 use GPIO.BCM.
The problem is that I get an error "ValueError: A different mode is already been set." I don't know how to resolve this because both sensors used different libraries. I think that the problem is in those libraries.
Is there an easy solution for this problem.
Running the scripts separately than there is no problem
You can try using GPIO.setmode(GPIO.BCM) and then in the other program using GPIO.setmode(GPIO.BOARD).
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I'm using a GUI application framework (EGT) on an ATMEL/ Microchip SAMA5D4. The framework features
DRM/KMS and X11 backends.
I've looked at using tslib to calibrate a restive touchscreen for the device but due to EGT limitations it looks like I'm going to have to use libinput for the moment.
Is there a calibration mechanism (equivalent of tslib) available for libinput? I've looked at xlibinput_calibrator & it seems like it could be a solution but I'll have to sort out the dependencies in the Yocto build.
Thanks,
For anyone looking at this xlibinput_calibrator looks like it requires X11 & was not an option.
I eventually ended up using a startup script to prevent EGT capturing raw events (deleted /dev/event0 or similiar) from the touchscreen & instead use the calibrated source from ts_input.
I would like to get a list of the built-in a(and frozen) modules using micropython, running on the board (ESP32) itself.
help('modules') will give you a list of all modules, but this is only send to the terminal. I have not been able to capture it on any other way.
also see micropython forum where the only option seems to be to use dupterm
which unfortunately is not available on ESP32
basically the title says it all. I'm working on a model that needs (there is no way around it) to load data from a website, parse it and pass it onto another block. I thought I could use an S-Function written in C++, which didn't properly work, then I tried to use webread()
which also didn't work in Simulink because I can't use extrinsic functions on the device this will run on.
I thought I could work around it by downloading the file externally and then reading it through fscanfbut it turned out that Matlab CODER doesn't support that as well.
After putting 2 1/2 days into this now, I'm asking myself whether it is even possible to do something like an HTTP Request through a Simulink block. That's why I went here to ask that question. Thanks for every answer!
I figured out a way to do it with a C++ S-Function by now.
I also created a GitHub Repo for it. If you're stuck with the same problem as I was, try to take a look at this. I'm pretty sure it will help you.
I am using a Oculus DK2 (v0.8) and OSVR SDK. I'm having a problem getting the HMD to run/display anything.
The Oculus samples and the OSVR samples do work however, so the osvr_server seems to run fine.
My application itself renders a test scene just fine when not using a HMD.
I tried two approaches:
First, just creating a osvr context and creating a DisplayConfig object. This seems to work, but DisplayConfig::checkStartup() fails (I do this in a loop, calling update on the context when the checkStartup call is failing). I used the OpenGLSample.cpp as a guide for this
Second, I tried using a RenderManager, but the call to createRenderManager results in a crash within the RenderManager.dll. I get the same crash wether I create the graphics lib object myself or if I let the library create it.
I am quite stuck now, since the demos and examples do work, I have no idea where to look for the error on my side. Creating the context works, querying interfaces as well, but the crash with createRenderManager is beyond me.
Does anyone have any hints or ideas what the problem could possibly be?
Regards and thanks in advance
pettersson
RenderManager should not crash during open. There have been a couple of bug fixes recently to avoid that happening, and the latest RenderManager binaries, libraries and header files are available with the SDK download from http://osvr.github.io/using/ along with updated copies of the example programs.
When something goes wrong in RenderManager, it usually reports that to standard error. We're moving that to a logging interface, but for now it should show up on the console. Posting an output of that as an issue at https://github.com/sensics/OSVR-RenderManager/issues is a good way to let the developers know that there is a problem. Of course, providing the same sort of information you provided here will be helpful as well.
I am really new to linux module programming.
I need to some how be able to do some tweak to the ath9k driver in linux.
I finally got the compat wireless source code of ath9k to compile in ubuntu 11.04 and was trying to play around with the code.
I tried using printk to tried to get to see what happen.
First I put printk in the init.c file, the message I printed show up when I use dmesg in the terminal. However, when I tried to use the same printk in another file like rc.c it does not show up at all.
I am wondering why is that?
And is there some other way that I could some how log some information from the code similar to the fprintf. What I need is I need to extract somehow the packet header from the driver.
Thank you
Best Regards.
read about the proc fs, it's a great framework to extract data from device drivers.
once you have registered a device node as proc fs, you can read from it.
once the the read function is called, a callback function you defined is creating the output. this is an excellent way to retrieve data from device.
there are also two other methods, one is sysfs, you can google for it. and the second,
if the the device is a char device, you can implement an ioctrl function which returns the info you need.