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|05-27-2012, 02:07||#1 (permalink)|
Join Date: May 2008
Location: Poland ;)
Thanked 25 Times in 14 Posts
Strange problem with connecting to S5230 via USB...
Hi. I'm starting to deal with USB port so i decided to start with some basics. I choosed S5230, target = get access to modem via AT Commands, butI have a little problem with this...
I sniffed a lot of packets from New PC Studio for beginning, & i see there is few packets to Set Communication mode To AT. So i wrote a lil program to switch to AT Mode, basing on sniffed packets, later few AT queries to test it (GET MODEL, GET IMEI, GET PRODUCT CODE, GET SW VERSION etc) and everything is OK - program works great but... and there's a problem : Communication works properly ONLY When PC Studio is launched! O.o
I checked Sniff log few times (sniffed packets from PC Studio), and i dont see any packet i missed. Interesting thing: When I close PC Studio & run sniffer to sniff my program vs. phone, it shows that phone send response packets for my AT Commands properly, but my program didnt show any packet @ Memo. If I run PC Suite, program works great. Someone can tell me whats goin on?
Here's a part of source (becouse I developed it only for educational purposes, the code looks ugly)
Here's a chain of Initial packets... Packets starting from 0x41 are AT commands...
const ATPacket: Array[0..11] of String = ('00C20100000008', '00C20100000008','7E00A072557E', '810003', '41545A0D0A', '41542B474D4D0D', '41542B4347534E0D', '41542B53575645523F0D', '41542B50524F44554354434F44453F0D0A', '41542B435042533F0D', '41542B435042533D22534D220D', '41542B435042523D');
var Str: String; i: byte; F: String; begin if USB.USBOpenDriver then //yea, I'm using oOXTCOo's unit to deal with USB :P begin Memo1.Lines.Add('Successfully Opened'); Memo1.Lines.Add('Switching to AT-Mode...'); Pb.Max:=High(ATPacket); //thats only Progress Bar :D for i:=Low(ATPacket) to High(ATPacket) do begin PB.Position:=i; //increase progress bar position Str:=USB.RWUSB(ATPacket[i], 255, 200, 'STRING'); if Length(Str)>0 then // if got some stuff from phone then... Memo1.Lines.Add('#:'+Str); end; Memo1.Lines.Add('Finished');
The Following User Says Thank You to McManiek For This Useful Post:
|05-28-2012, 00:01||#2 (permalink)|
Join Date: Nov 2009
Thanked 6,006 Times in 872 Posts
how send atcommand with usb VB2008 use comport
rxBuff = "" If SerialPort1.IsOpen = False Then SerialPort1.Open() SerialPort1.Write("AT+SW?." & vbCr) System.Threading.Thread.Sleep(800) If SerialPort1.IsOpen = True Then SerialPort1.Close() If rxBuff = "" Then GoTo ends RichTextBox1.Text = rxBuff
|05-29-2012, 03:14||#3 (permalink)|
Join Date: Sep 2004
Thanked 1,879 Times in 192 Posts
close pcstudio and use comport communication..
try to use this component
ComPort Library | Free Communications software downloads at SourceForge.net
The Following User Says Thank You to ulymar For This Useful Post:
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