Re: [boost] Anyone got AT commands work using asio serial port?

Hi Sergei, Thanks for your response. On 1/14/20, Sergei Nikulov wrote:

Hello JH

If SerialOptions defaults (parity, csize, flow, stop) are good for you

Yes, I was using all defaults, that should work right?

SerialOptions() : device(), baudrate(9600), timeout(seconds(0)), parity(noparity), csize(8), flow(noflow), stop(one) {}

The only different was I set baudrate to 115200, I changed to use 9600, doesn't seem work either.

then try to add \r to the end of your AT command - serial<<"AT+CGDCONT?" << endl;. + serial<<"AT+CGDCONT?\r\n"; I did try to add "\r\n", no avail.

Hmm, did not realize boost serial port is that hard, any working boost serial port samples online? Thank you. Kind regards, - jh

AFAIR, AT commands, use it as line end (ref https://en.wikipedia.org/wiki/Hayes_command_set), but on Linux std::endl only LF(0x0A). Maybe this is your case. HTH.

вт, 14 янв. 2020 г. в 02:34, JH :

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Hi Sergei,

Thanks for your response.

Please find code I found from Internet attached, the same baud rate, serial port and AT command I can get response from minicom, but empty response from the boost serial port, I don't think it was the baud rate issue or option parameters issue, but I could be wrong.

Appreciate if you could get it work.

Thank you.

Kind regards,

- jh

On 1/13/20, Sergei Nikulov wrote:

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пн, 13 янв. 2020 г. в 12:12, JH via Boost :

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Hi,

There are many boost serial port sample code out there, but none of them I can run AT command. I have a device connected to my ubuntu 18, I can run AT command on minicom to get correct response, but I could not get any AT response from boost serial port. Has anyone made it work?

Thank you.

Kind regards,

- jh

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Could you please show the code? Just guess, incorrect baud rate or other config parameters (ref. https://www.boost.org/doc/libs/1_72_0/doc/html/boost_asio/reference/basic_se...)

-- Best Regards, Sergei Nikulov

-- Best Regards, Sergei Nikulov