I've run into a problem where a customer says that if they use my
application to send a break signal via cable, it works. If they send break
via Palm V modem, it does not work, and it appears that what happens with
the modem is that instead of a singble break for .5 seconds, he gets 2
shorter break signals.
Has anyone run into this?
Any idea?
The code in the app bascially turns break on, waits 500ms, turns it back
off, code below...
Brian
/* SendBreak
* 04/03/00 bhall Try using SysTaskDelay instead of loop
* - Skip if we find an error
* - Only call ClearErr if we
had an error
*/
void CSerialConnection::SendBreak(void)
{
Err err;
// Turn break on
if (fHasNewSerialMgr) err = SrmControl(fPortID, srmCtlStartBreak,
0, 0);
#if EMULATION_LEVEL == EMULATION_NONE
else err =
SerControl(fSerLibRefNum, serCtlStartBreak, 0, 0);
#endif
if (err) goto out;
// Wait 500ms
if (1) {
SysTaskDelay(sysTicksPerSecond / 2);
} else {
UInt32 start, end;
start = TimGetTicks();
end = start + (sysTicksPerSecond / 2);
while (TimGetTicks() < end)
;
}
// Turn break off
if (fHasNewSerialMgr) err = SrmControl(fPortID, srmCtlStopBreak,
0, 0);
#if EMULATION_LEVEL == EMULATION_NONE
else err =
SerControl(fSerLibRefNum, serCtlStopBreak, 0, 0);
#endif
out:
// Clear any errors
if (err) ClearErr();
}
_____________________________________________________________________
Mark/Space Softworks voice 408-293-7299
111 West Saint John, 3rd Floor fax 408-293-7298
San Jose, CA 95113 <http://www.markspace.com>
PalmOS, Mac OS, Windows and Web Software & Solutions:
PageNOW! Wireless Messaging, PhoneWatcher Caller ID,
Online & Communicate terminal emulation and serial debugging
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