My problem is the following: I've got an android application who is installed on a Xperia Tablet linked to an Arduino with USB. I need to open a serial port to send data to Arduino board but nothing happen.

So my questions are: • Does Serial Ports are enabled on Android? • Does anyone knows how to enable it in case of they're not enabled? I used System.IO.ports, it's worked perfectly on PC but not on Android device. So I've got an error in console when i run my application: Dll not found Exception: MonoPosixHelper Does anyone knows what is it talking about? Thanks for reading!

Oscar_FC 18-May-07 23:00 18-May-07 23:00 I have run serrecv.exe on a PC with Windows XP & SP2. Always the message is the same. 'Error getting file name size'. I don't know if this program doesn't run on Windows XP. Or I have to open ports in Windows Xp with another program, try on another O. S., change the API of Win32, or what I have to do, but I need to run this program on Windows XP to transfer some files to another PC with Windows XP O.S.

Can anyone help me, please??? Tmpgenc 4 0 xpress portable hot. Or tell me where is the source code of a program like this??? Thank You in advance Oscar.

Accessing a serial port. Native code loading in the Android application may be found in class SerialPort.java by calling System.loadLibrary (‘ serial_port ‘): The parameter serial_port is a module that has occurred as a result of code C compilation through/via NDK. It is specified in file make /jni/Android.mk.

Eddypr 18-Jul-06 22:39 18-Jul-06 22:39 Thank to gomorgan89 that wrote the codes of serrecv.c & sertrans.c. They works fast and fine for transfering and receiving file(s) via serial port comm. I love them all. But now i'm going to transfer the file from PC that uses Ms-DOS 6 OS to PC that use WinXP OS. The codes of serrecv.c & sertrans.c can not work in DOS environment. I need the code of serrecv.c & sertrans.c that work in DOS environment.

May be they are implemented in turbo C or C-ansi. Anyone knows the (location in the internet) source code are? Thank you eddy. 23-Oct-05 16:31 23-Oct-05 16:31 this article is helpful. But how to use it for full duplex communication with null modem? I have the problem of network bridge as connecting 2 pcs communicating each other through it. 1 pc encodes decodes other does nothing.

Bridge is supposed to be a pc with 2 serial ports. 2 pcs have 1 serial port. How to establish communication between these 3 pcs serially? I recentiy down loaded source code for.c and.exe files.

When i tried to compile it on win-xp turbo compiler i got too many error messages. Unable to include windows.h undefined symbol ==> dcb,handle,dcb,property,serial_port,generic_read,generic_write, same for both serrecv.c sertrans.c files also i would like to know wheather i should have vb 6.0 or.net to run c program? But.exe files donot give any warning.

2ndly how should i configure null modem cable? Is it null modem with loop back handshaking? If y/n then how?

Also can anyone tell me what is max baud rate can be set for null modem cable set up? Wheather it is hardware flow control?

Xon-xoff flow control? Can anybody help me nilesh date -- modifed at 20:16 Monday 24th October, 2005.

Paul Belikian 2-Oct-05 7:59 2-Oct-05 7:59 I liked the article, however it makes no mention of flow control.unless I missed it. If you added flow control support, you could transfer much more than 200 bytes at a time (which is quite a small amount of data for two computers sitting next to each other). You could also use the BuildCommDCB( ) function. Just passing it a string would setup the baudrate AND flow control. That function with a string such as '96,N,8,1,x' would eliminate that switch statment and would build the DCB with the appropriate values. Good article!