Hi Urs, Thanks for your aswer. So if Java programs work that way, there is nothing I can do to make it work do I? Well I could make some C/C++ program to do what I want.
Luís Pereira On Thu, Oct 27, 2011 at 07:39, Urs Hunkeler <urs.hunke...@epfl.ch> wrote: > Hi Luís, > > These are interesting findings. I don't think it is a problem related to > Java as a language. It appears to me that the microcontroller is reset > as soon as the serial port is opened. Maybe the Java programs that you > have tried set some handshaking lines that cause a reset. > > If you look at the schematics: > http://www.tinyos.net/scoop/special/hardware > > You can see (on the last page) that the reset handling differs between > TelosA and TelosB. If I understand this correctly, a certain combination > of RTS and DTR causes a reset on the TelosA, while on the TelosB one > needs to send a special sequence RTS and DTR (and possibly other > handshaking signals). > > Cheers, > Urs > > > On 10/26/11 11:27 PM, Luís Pereira wrote: > > Hi guys, > > > > Following that tip Bíró gave, i found a little program that uses rxtx to > > find and open the usb port. When I run the program it find the door and > > my mote stop blink again. I'm starting to think that the problem is with > > java and usb ports. > > > > I have a little program in C that reads data from a serial port. When I > > try to read from the mote it works and I have the following output: > > > > Transmission 1: > > 0x0 0x63 0x6F 0x75 0x6E 0x74 0x3D 0x30 0x30 0x31 0x65 0x2C 0x20 0x6C > > 0x65 0x64 0x3D 0x30 0x30 0x30 > > > > count=001e, led=000 > > > > Transmission 2: > > 0x36 0xD 0xA 0x63 0x6F 0x75 0x6E 0x74 0x3D 0x30 0x30 0x31 0x66 0x2C > > 0x20 0x6C 0x65 0x64 0x3D 0x30 > > > > 6 > > count=001f, led=0 > > > > Transmission 3: > > 0x30 0x30 0x37 0xD 0xA 0x63 0x6F 0x75 0x6E 0x74 0x3D 0x30 0x30 0x32 > > 0x30 0x2C 0x20 0x6C 0x65 0x64 > > > > 007 > > count=0020, led > > > > Transmission 4: > > 0x3D 0x30 0x30 0x0 0x30 0x30 0xD 0xA 0x63 0x6F 0x75 0x6E 0x74 0x3D > > 0x30 0x30 0x32 0x31 0x2C 0x20 > > > > =0000 > > count=0021, > > > > > > I'm not synchronizing, only reading data. The first line after > > "Transmission X:" is the hexadecimal code i read, and the second is > > converted to text, and as you can see I'm receiving what I'm suppose to, > > so it's something related to java programs right? > > > > > > Luís Pereira > > > > > > > > _______________________________________________ > > Tinyos-help mailing list > > Tinyos-help@millennium.berkeley.edu > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@millennium.berkeley.edu > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >
_______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
