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Today's Topics:

   1. Synchronised RX and TX control in X310 (Karan Suri)
   2. Run Time Error in Sending MIMO on B210 (Masoud Naderpour)
   3. Re: continues streaming with rx_multi_samps (Nicolas Cuervo)
   4. Re: USRP-users Digest, Vol 84, Issue 19 (Mark Koenig)
   5. ADC Overflow - B205i (Dominik Eyerly)
   6. Re: ADC Overflow - B205i (Marcus M?ller)
   7. Re: ADC Overflow - B205i (Dominik Eyerly)

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Message: 1
Date: Mon, 21 Aug 2017 00:17:15 -0400
From: Karan Suri <youngsuri@gmail.com>
To: usrp-users <usrp-users@lists.ettus.com>
Subject: [USRP-users] Synchronised RX and TX control in X310
Message-ID:
	<CAN+qiuPntGDfA9Q0jbojs3LpQ3_h1fBrGsUALz3fDkQtZj8sRg@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello usrp-users.
I was successfully using a source code capable of transmitting and
Receiving OFDM packets in USRP X310. The anchor USRP  transmits an OFDM
packet at frequency f1 , it is received by a tag USRP which loops back the
received OFDM packets at frequency f2. The same OFDM packet is then
captured back at the RX of Anchor and dumped into a file.

I was using version 3.10.1 until few days back when  I shifted to 3.10.2 to
allow the compatibility of Rev D UBX-160 daughter board. The code
successfully builds but can no longer function as it used to in the
previous version.
I am using "uhd::get_time_now() and uhd::time_sepc_t(n)" to synchronise the
start of transmit and receive.   I need to transfer 20 such packets (so
that the result can be averaged). Between each iteration of packet transfer
the tx and RX of anchor USRP are put to sleep for specific duration.
Do you have any idea what might be going wrong when i shifted to a newer
version. Are the old codes no longer compatible, or do they function
differently?

Karan Suri
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Message: 2
Date: Mon, 21 Aug 2017 13:48:18 +0430
From: Masoud Naderpour <naderpour.masoud@gmail.com>
To: usrp-users@lists.ettus.com
Subject: [USRP-users] Run Time Error in Sending MIMO on B210
Message-ID:
	<CACasZmQiyZcuZiwwspt=s9P-3XhKu8g+3zL0J1XZBWce=PnbeA@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Dear All,
When I transmit on both channels on USRP b210, after some time I receive
the following error:

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_S_create

But, in SISO mode there is no problem. Please help me.
Thanks,
Masoud
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Message: 3
Date: Mon, 21 Aug 2017 12:18:53 +0200
From: Nicolas Cuervo <nicolas.cuervo@ettus.com>
To: Snehasish Kar <snehasish.cse@live.com>
Cc: "usrp-users@lists.ettus.com" <usrp-users@lists.ettus.com>
Subject: Re: [USRP-users] continues streaming with rx_multi_samps
Message-ID:
	<CAOuPCvhXTb2crNQ3seghGecO+QWJTsNkRY=GoZT67rtU1aggJQ@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello Snehasish,

you can modify the example to get as many samples as you want, even if what
you want is previously undefined. You might want to change the while loop
condition in order to meet this [1] and add a stop signal (such as ctrl+c)
with std::signal(SIGINT), which is used in other provided examples, so you
can check how it is done.

Analogously, other examples use continuous streaming either for send (like
tx_samples_from_file) or receive (rx_samples_to_file). Adding the
continuous streaming should functionality be straightforward.

Regards,
- Nicolas

[1]
https://github.com/EttusResearch/uhd/blob/maint/host/examples/rx_multi_samples.cpp#L162

On Sat, Aug 12, 2017 at 9:32 AM, Snehasish Kar via USRP-users <
usrp-users@lists.ettus.com> wrote:

usrp-users@lists.ettus.com

Re: [USRP-users] x310 with twin rx uhd_usrp probe issue