This problem has fixed I have transfer QT4 desktop to ARM and rebuild qt4 source code Need rebuild qt-everywhere-opensource-src-4.6.3 source code Chang code...
Good to hear that you could fix the problem. With Maemo, MeeGo or Android such a problem dit not came up because there it was not necessary to recompile Qt by...
My embedded hardware is S3C2440 Samsung ARM chip, and flash is 256M. Before i using qt-4.6.3, i am always using qt-4.5, and without qt desktop. But when i have...
About MODBUS data aquisition. I think the reason is our linux kernel has not supported RS485 driver, because i design modbus protocal over RS485. So i need...
There is no such thing like a "RS485" or "RS232" driver. You only have a driver for a serial tty device. Example: /dev/ttyUSB0 is the tty device i get when i...
Hi Master, I think i do not describe my testing environment clearly. I have one temperature sensor which use RS485 connect to my embedded box and take one...
... If your system software (linux driver) supports RS232 it will support RS485 also (I am sure it does). For the driver both are the same. The difference is...
hello all, i need someone/s to assist with the development of a mining application. to monitor processing plant with 8 different conveyor belt outputs and 5...
... The software doesn't care about the area in which you want to deploy your solution in. You will have to select the hardware that is suited for mining. For...
Hello: We were doing some tests with a Modicon PLC-Telemecanique, we read WORD type variables to position 1024 (% MW1024 in the PLC). The question is how we...
In Modbus there is sometimes confusion about register number versus addresses And it is not clear how to communicate values other that 1 bit and 16 bit. Only...
Hi, When I try installing PVbrowser on windows 7, I get an error message : Error opening file for wrinting C:\Program Files\pvb\LICENCE.GPL Click Abort to stop...
Is there a problem with your rights in this folder? Try installing to somewhere else. c:\test May be you need to become admin first. The installation procedure...
Yes, it seems that we need admin right to do something in "C:\Program Files". This is new in windows 7. Installing to an other folder like "test" work well. ...
Hi I am having trouble with the rlController class. I wanted to setup a controller but I am not sure how to link the measurement and the output variables to...
rlController uses callback functions for reading the measurement and writing the output. When you call regler.start(); a new thread will be started that runs...
Thank you! My controller Program works! I am not sure but shouldn't the controller class have an limitation? If now for some reason the process can not reach...
... You can add the limitation in your writeOutput() callback function. Do you see any advantage to limit the output directly within controller ? The behaviour...
For the moment I use the limitation in controller directly. But I am not sure this is right way to go. Right now it works for me. I bought the book you...
Hi everyone, I've just started using your suite, which I consider really helpful and well made. I'm working on a Modbus-RTU project in which I need to export...
... - You can execute external programs / shell scripts (or batch files in case of Windows) from your pvserver with the normal system() function. #include...
Hi all, I'm new to this group, and I know that pvbroser can run now on Android systems. But can the pvserver run on Android? The idea is to have all in the...
... It has not been tested up to now. At least the pvserver compile on Android. Thus pvserver should run on Android. There seems to be a terminal emulator for...
OK, thank you very much for your guide. I will try what you are talking about and let you know. Also, is Necessitas always needed? I mean, if you use Lua for...
... In principle you only need the gcc compiler from the Android NDK toolchain (arm cross compiler). But it is much more convenient to have Necessitas also...
You will need shell access to your Android device. I would suggest to start a sshd on the Android device and ssh to it from your PC. In the first step compile...
