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  • Case ID: 272682
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SUPL library fails: at_cmd: Response buffer not large enough

Arnout

Hi,

I am trying to do AGPS with the supl library. 
I obtained version 0.7 through the application and installed it (and enabled the required config options).

Unfortunately, this is now crashing the (asset_tracker_v2) application:

[00:00:19.456,542] <dbg> cloud_codec_ringbuffer.cloud_codec_populate_sensor_buffer: Entry: 1 of 9 in sensor buffer filled
[00:00:19.468,200] <dbg> agps.open_supl_socket: ip 74.125.193.192 (c0c17d4a) port 7276
[00:00:19.508,056] <wrn> modem_module: Unsupported modem firmware version: mfw_nrf9160_1.3.0
[00:00:19.517,150] <wrn> modem_module: Expected firmware version: mfw_nrf9160_1.2.3
[00:00:19.525,543] <wrn> modem_module: You can change the expected version through the
[00:00:19.534,210] <wrn> modem_module: EXPECTED_MODEM_FIRMWARE_VERSION setting.
[00:00:19.542,327] <wrn> modem_module: Please upgrade: http://bit.ly/nrf9160-mfw-update
[00:00:19.551,147] <inf> event_manager: MODEM_EVT_MODEM_STATIC_DATA_READY
[00:00:19.558,380] <dbg> modules_common.module_enqueue_msg: modem module: Enqueued: MODEM_EVT_MODEM_STATIC_DATA_READY
[00:00:19.569,549] <dbg> modules_common.module_enqueue_msg: data module: Enqueued: MODEM_EVT_MODEM_STATIC_DATA_READY
[00:00:19.580,535] <dbg> modules_common.module_enqueue_msg: cloud module: Enqueued: MODEM_EVT_MODEM_STATIC_DATA_READY
[00:00:19.591,644] <dbg> modules_common.module_enqueue_msg: app module: Enqueued: MODEM_EVT_MODEM_STATIC_DATA_READY
[00:00:19.602,661] <dbg> modules_common.module_get_next_msg: app module: Dequeued MODEM_EVT_MODEM_STATIC_DATA_READY
[00:00:19.613,922] <dbg> modules_common.module_get_next_msg: data module: Dequeued MODEM_EVT_MODEM_STATIC_DATA_READY
[00:00:19.625,305] <inf> agps: Starting SUPL session
[00:00:19.633,697] <err> at_cmd: Response buffer not large enough
[00:00:19.640,716] <err> supl_client: Fetching LTE info failed

The error is pretty straightforward, but I already increased the AT buffer size from 2700 to 4000, and I still get this error..

Is this normal? What is the recommended AT buffer size for use with AGPS?

(I am using SDK 1.5.0, modem firmware 1.3.0, revision 1 of the thingy91.)

Kind regards,

Arnout

  • 0

    Hello Arnout,

    Arnout said:
    In theory, I could go and try and debug each call to the library and check when the problem happens to try and pinpoint it further, but I was hoping you would be able to reproduce this quickly and narrow it down more quickly.

    since my knowledges with this library are limited and most of our experts are out of office, I unfortunately can’t help you with that. I have to check with our application team in this case, which might involve some leading time. I also would need more information about how you have implemented the library to your application.

    Have you by the way been following this guide?

    Regards.

    Markus

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