Windows Mobile 6 AT 命令
我试图使用 AT 命令获取 CellID，但我没有从调制解调器得到任何响应，我的代码如下所示，我发送 AT+CCED 命令，但从未得到任何响应。
HANDLE hCom;
char * xpos;
char rsltstr[5];
DWORD returnValue;
DWORD LAC;
DWORD CellId;
int bufpos;
DCB dcb;
COMMTIMEOUTS to;
DWORD nWritten;
DWORD event;
DWORD nRead;
char outbuf[20], buf[256];
hCom = CreateFile(L"\\\.\\COM9:",GENERIC_READ|GENERIC_WRITE,0,0,OPEN_EXISTING,0,0);
if (hCom==NULL || hCom==INVALID_HANDLE_VALUE)
{
TCHAR szBuf[80];
DWORD dw = GetLastError();
// get the most uptodate cells
_stprintf(szBuf, TEXT("CreateFile failed with error %d."), dw);
MessageBox(0, szBuf, TEXT("Error"), MB_OK);
hCom= NULL;
return -1;
}
if (!GetCommState(hCom, &dcb))
{
return -2;
}
dcb.BaudRate= CBR_115200;
dcb.ByteSize= 8;
dcb.fParity= false;
dcb.StopBits= ONESTOPBIT;
if (!SetCommState(hCom, &dcb))
{
return -3;
}
if (!EscapeCommFunction(hCom, SETDTR))
{
return -4;
}
if (!GetCommTimeouts(hCom, &to))
{
return -6;
}
to.ReadIntervalTimeout= 0;
to.ReadTotalTimeoutConstant= 200;
to.ReadTotalTimeoutMultiplier= 0;
to.WriteTotalTimeoutConstant= 20000;
to.WriteTotalTimeoutMultiplier= 0;
if (!SetCommTimeouts(hCom, &to))
{
return -7;
}
if (!SetCommMask(hCom, EV_RXCHAR))
{
return -8;
}
bufpos = 0;
strcpy(outbuf,"AT+CCED=0,5\r");
if (!WriteFile(hCom, outbuf, strlen(outbuf), &nWritten, NULL))
{
return -10;
}
if (nWritten != strlen(outbuf))
{
return -11;
}
if (!WaitCommEvent(hCom, &event, NULL))
{
return -12;
}
while(1)
{
if (!ReadFile(hCom, buf+bufpos, 256 - bufpos, &nRead, NULL))
{
return -13;
}
if (nRead == 0) // <---- it alweys break here
break;
bufpos += nRead;
if (bufpos >= 256)
break;
}
I'm trying to get CellID using AT commands, but I dont get any response from the modem, mine code looks like below, I send AT+CCED command, but never get any response.
HANDLE hCom;
char * xpos;
char rsltstr[5];
DWORD returnValue;
DWORD LAC;
DWORD CellId;
int bufpos;
DCB dcb;
COMMTIMEOUTS to;
DWORD nWritten;
DWORD event;
DWORD nRead;
char outbuf[20], buf[256];
hCom = CreateFile(L"\\\.\\COM9:",GENERIC_READ|GENERIC_WRITE,0,0,OPEN_EXISTING,0,0);
if (hCom==NULL || hCom==INVALID_HANDLE_VALUE)
{
TCHAR szBuf[80];
DWORD dw = GetLastError();
// get the most uptodate cells
_stprintf(szBuf, TEXT("CreateFile failed with error %d."), dw);
MessageBox(0, szBuf, TEXT("Error"), MB_OK);
hCom= NULL;
return -1;
}
if (!GetCommState(hCom, &dcb))
{
return -2;
}
dcb.BaudRate= CBR_115200;
dcb.ByteSize= 8;
dcb.fParity= false;
dcb.StopBits= ONESTOPBIT;
if (!SetCommState(hCom, &dcb))
{
return -3;
}
if (!EscapeCommFunction(hCom, SETDTR))
{
return -4;
}
if (!GetCommTimeouts(hCom, &to))
{
return -6;
}
to.ReadIntervalTimeout= 0;
to.ReadTotalTimeoutConstant= 200;
to.ReadTotalTimeoutMultiplier= 0;
to.WriteTotalTimeoutConstant= 20000;
to.WriteTotalTimeoutMultiplier= 0;
if (!SetCommTimeouts(hCom, &to))
{
return -7;
}
if (!SetCommMask(hCom, EV_RXCHAR))
{
return -8;
}
bufpos = 0;
strcpy(outbuf,"AT+CCED=0,5\r");
if (!WriteFile(hCom, outbuf, strlen(outbuf), &nWritten, NULL))
{
return -10;
}
if (nWritten != strlen(outbuf))
{
return -11;
}
if (!WaitCommEvent(hCom, &event, NULL))
{
return -12;
}
while(1)
{
if (!ReadFile(hCom, buf+bufpos, 256 - bufpos, &nRead, NULL))
{
return -13;
}
if (nRead == 0) // <---- it alweys break here
break;
bufpos += nRead;
if (bufpos >= 256)
break;
}
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首先，尝试使用 L"COM9:" 作为 CreateFile 的第一个参数。
查看此页面：设备文件名
First of all, try L"COM9:" for the first parameter of CreateFile.
Check out this page: Device File Names
我不知道如何使用 AT 命令获取小区 ID，但您可以使用 RIL 接口获取小区 ID。 它可能比使用 AT 命令更简单（除非您尝试远程获取它？）
http://msdn.microsoft.com/en-us/library/ms890075.aspx
您可以使用 RIL_GetCellTowerInfo 函数获取当前的基站 ID。
I don't know anything about using the AT commands to get the cell id but you can use the RIL interface to get the cell id. It may be simpler than using the AT commands (unless you are trying to get it remotely?)
http://msdn.microsoft.com/en-us/library/ms890075.aspx
You use the RIL_GetCellTowerInfo function to get the current cell tower id.
我的问题是，在某些设备上，RIL iterface 方法返回 E_NOTIMPL 并且没有任何效果，所以我认为我可以直接使用 AT 命令与移动调制解调器通信。
有没有人能解决这个问题，我已经和它斗争了一个多星期了。
my problem is that on some devicec RIL iterface methods returns E_NOTIMPL and nothing works, so I tought that I could directly tolk with mobile modem with AT commands.
Does anyone have solution to such a problem, I'm fighting with it for over a week now.
显然我不被允许发表评论..所以：
@Sebastian：我在 2 个型号的 HTC Diamond + HTC Touch Pro + ATT Fuze 上运行 Ril_GetCellTowerInfo。 它适用于所有 4 部手机。 如果您需要更多帮助，我很乐意分享一些工作代码（在 VB.NET 中）。
Apparently I am not allowed to comment.. so:
@Sebastian: I run Ril_GetCellTowerInfo on 2 models of HTC Diamond + an HTC Touch Pro + an ATT Fuze. It works on all 4 phones. I'd be happy to share some working code (in VB.NET) if you need more help.