How to use Emulator's serial port

[coolio]

Hi,

I am trying to do debug my bluetooth development on emulator. As David
pointed out, emulator's /dev/ttyS2 can be mapped to serial port on
host.

I have a test program that is running very well with G1/ADP1. However,
the same program does not work well when running on emulator. The
following is what I have done so far,

1) emulatro -qemu -serial /dev/ttyS0

I can see HCI reset command works and few other commands in the
process of device reset. However, the test program can not run further
because it detected hardware error.

2) I added an FTDI usb serial port to the host and started emulator
again, emulator -qemu -serial /dev/ttyUSB0. Running the test program
have the same result.

Is there anyother processes in emulator that also use /dev/ttyS2? Can
I map /dev/ttyS3 to /dev/ttyUSB0 on host? Any help would be greatly
appreciated.

Thanks

[coolio]

I have run the emulator on Windows with the following command,

emulator -qemu -serial COM1

It prompt me to configure COM1. So I choose my configuration with
hardware flow control.

The same program that have problem when it was running the Android
emulator on Ubuntu-8.10 now is working without a glitch, just as it is
running on Ubuntu-8.10.

In my test program, I always configured the device with hardware flow
control with CRTSCTS bit, so I suspect maybe /dev/ttyS0 on my Ubuntu
is not confiugred with crtscts. I used stty to turn on the flow
control everytime I run emulator and adb shell.

I still have the same problem. The program will hang after serval
write and read to/from /dev/ttyS2. After serval write calls of writing
about 2K bytes, it just stoped.

Findally, running emulator and adb shell, I can do "cat <file> > /dev/
ttyS2" with a file as large as 200kb.

It doesn't look like that it is a problem in Android Emulator, more
likely is qemu does not work well with Ubuntu. In this case, Windows
prevails.

Appreciate if anybody can help me to solve this problem.

Thanks,

[kotaro]

It can read over 2K bytes on Ubuntu-8.10. can't it ?
I'm not too sure if I can help you out, but could I just ask you two
questions.

-How to access /dev/ttyS2/
I think that your program uses 'FileOutput/InputStream' and write/
read method.
Is it correct ?

-Behavior of the emulator on Windows
Can your program write/read over 2K bytes data in the emulator on
Windows ?


Thanks,

On 1月29日, 午前8:06, coolio <justinca...@gmail.com> wrote:
> I have run the emulator on Windows with the following command,
>
> emulator -qemu -serial COM1
>
> It prompt me to configure COM1. So I choose my configuration with
> hardware flow control.
>
> The same program that have problem when it was running the Android
> emulator on Ubuntu-8.10 now is working without a glitch, just as it is
> running on Ubuntu-8.10.
>
> In my test program, I always configured the device with hardware flow
> control with CRTSCTS bit, so I suspect maybe /dev/ttyS0 on my Ubuntu
> is not confiugred with crtscts. I used stty to turn on the flow
> control everytime I run emulator and adb shell.
>
> I still have the same problem. The program will hang after serval
> write and read to/from /dev/ttyS2. After serval write calls of writing
> about 2K bytes, it just stoped.
>

> Findally, running emulator and adb shell, I can do "cat <file> > /dev/ttyS2" with a file as large as 200kb.

>
> It doesn't look like that it is a problem in Android Emulator, more
> likely is qemu does not work well with Ubuntu. In this case, Windows
> prevails.
>
> Appreciate if anybody can help me to solve this problem.
>
> Thanks,
>
> On Jan 25, 9:35 pm, coolio <justinca...@gmail.com> wrote:
>
>
>
> > Hi,
>
> > I am trying to do debug my bluetooth development on emulator. As David

> > pointed out, emulator's /dev/ttyS2can be mapped to serial port on

> > host.
>
> > I have a test program that is running very well with G1/ADP1. However,
> > the same program does not work well when running on emulator. The
> > following is what I have done so far,
>
> > 1) emulatro -qemu -serial /dev/ttyS0
>
> > I can see HCI reset command works and few other commands in the
> > process of device reset. However, the test program can not run further
> > because it detected hardware error.
>
> > 2) I added an FTDI usb serial port to the host and started emulator
> > again, emulator -qemu -serial /dev/ttyUSB0. Running the test program
> > have the same result.
>
> > Is there anyother processes in emulator that also use /dev/ttyS2? Can
> > I map /dev/ttyS3 to /dev/ttyUSB0 on host? Any help would be greatly
> > appreciated.
>

> > Thanks- 引用テキストを表示しない -
>
> - 引用テキストを表示 -