Chris
Fri Feb 18 12:52:25 CST 2005
It's quite possible (and, based on your test, probable) they share a UART,
so if BT is on, the port is in use.
--
Chris Tacke
Co-founder
OpenNETCF.org
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"Anderson" <Anderson@discussions.microsoft.com> wrote in message
news:7441D80B-B6F1-4082-BA03-E63808EF075A@microsoft.com...
> Hi ctacke,
>
> Not sure what that means. Well, I'm writting a test case...first I get all
> the ports available and it returns: 1,2,4,5,8, IR1
> Then I go through all of them, one by one performing an Open and Close to
> test them out. When the bluetooth connection is on, ports 2 and 4 fail. So
> I'm trying to find out why they fail.
> Thanks
>
>
> "<ctacke/>" wrote:
>
>> Well the device probably uses only the UARTs available to the PXA255, so
>> there are only 3 actual serial ports. COM 1 is the standard COM port and
>> is
>> likely theUART1. UART2 is probably used for IR and UART3 is probably the
>> BTUART. Everything else is avirtual COM port exposed by a driver.
>>
>> The question, really, is what are you trying to do? Just opening ports
>> for
>> fun, or a specific purpose in mind?
>>
>> -Chris
>>
>> "Anderson" <Anderson@discussions.microsoft.com> wrote in message
>> news:BB1FAF58-87AA-4D31-A223-F7EC4A048BB1@microsoft.com...
>> > Hi all,
>> >
>> > I have an HP4700 running on Windows Mobile 2003 Second Edition.
>> > I am running a couple tests on my COM ports and I currently have the
>> > following information that I get from the registry:
>> >
>> > Port Registry Path Description
>> >
>> > COM1 Drivers/BuiltIn/Serial "Serial Cable on COM1:"
>> > COM2 Drivers/BuiltIn/Serial_FIR "Infrared Port"
>> > COM3 Drivers/BuiltIn/IrComm "Infrared Port"
>> > COM4 Drivers/Buildin/Serial_BTUR
>> > COM5 Drivers/BuiltIn/Serial5 "Bluetooth Serial Port COM5:"
>> > COM8 Drivers/BuiltIn/Serial8 "Bluetooth Serial Port COM8:"
>> > COM9 Drivers/BuiltIn/SerialUSB "Serial on USB"
>> >
>> > When I run the test with Bluetooth enabled, ports COM2 and COM4 fail.
>> > Why
>> > would these ports fail if Bluetooth uses COM5 and COM8?
>> >
>> > When I run the test with Bluetooth disabled, ports COM2, COM5 and COM8
>> > fail.
>> > If port COM5 and COM8 are Bluetooth and Bluetooth is disabled, how can
>> > they
>> > fail saying that they are in use? Do I have the wrong mapping for the
>> > ports?
>> >
>> > Any help is appreciated.
>> > Thanks in advance.
>> >
>> > --
>> > Anderson
>>
>>
>>