thanks.
I think sio.c for windows version needs to be adjusted.
PPP pull sio_read, and sio_write, the sio_read could not be blocked if
there is no data. If blocked, the PPP could not work.
if SIO_USE_COMPORT is enabled, the timeout needs to set, so do not
let ReadFile block .
Followinng is my code.
##################
sio_fd_t sio_open(u8_t devnum)
{
HANDLE hPipe = INVALID_HANDLE_VALUE;
CHAR szPipeName[256];
LWIP_DEBUGF(SIO_DEBUG, ("sio_open(%lu)\n", (DWORD)devnum));
sprintf(szPipeName, SIO_DEVICENAME"%lu", (DWORD)(devnum));
hPipe = CreateFile(szPipeName, GENERIC_READ | GENERIC_WRITE, 0,
NULL, OPEN_EXISTING, 0, NULL);
if (hPipe != INVALID_HANDLE_VALUE) {
HANDLE hCom = (HANDLE)hPipe;
DCB dcb;
int n, rc;
char cmpBuf[128];
COMMTIMEOUTS CommTimeOuts;
GetCommTimeouts( hCom, &CommTimeOuts );
CommTimeOuts.ReadIntervalTimeout = 1;
CommTimeOuts.ReadTotalTimeoutMultiplier = 0;
CommTimeOuts.ReadTotalTimeoutConstant = 100;
CommTimeOuts.WriteTotalTimeoutMultiplier = 0;
CommTimeOuts.WriteTotalTimeoutConstant = 0;
SetCommTimeouts( hCom, &CommTimeOuts );
if (!GetCommState(hCom, &dcb)) {
return NULL;
}
dcb.BaudRate = 57600;
dcb.ByteSize = 8;
dcb.StopBits = 0;
//dcb.Parity = EVENPARITY; ODDPARITY
if (!SetCommState(hCom, &dcb)) {
return NULL;
...
}
##################
With this adjusted, the PPP SIO could pull data from windows COM port,
and different devices could be tesed with lwIP+ PPP.
Lee
On Mon, Dec 7, 2009 at 3:36 PM, address@hidden
<mailto:address@hidden> <address@hidden <mailto:address@hidden>>
wrote:
yueyue papa wrote:
thanks, the previous problem is solved.
Another trivial problem is
PPP is configered as mutual exclude as LAN feature. In fact,
this requirement is not correct. LwIP could support both.
I know that both PPP *and* ethernet may be used at the same time.
However, modifying the port to do that is a simple thing for
anyone who wants to.
[..]
ethernetif_poll(&netif); <<==== still use LAN feature.
[..]
compile error happened.
Fixed, thanks.
Simon
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