EasyManuals Logo

Telit Wireless Solutions LE910 User Manual

Telit Wireless Solutions LE910
509 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #469 background imageLoading...
Page #469 background image
Telit LE910 V2 Series AT Commands
80446ST10707A Rev. 0– 2015-11-03
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 469 of 509
Mod. 0808 2011-07 Rev.2
Miscellaneous audio commands
PCM Play and Receive - #SPCM
#SPCM - PCM Play And Receive
SELINT 2
AT#SPCM=<mode>,
<dir>[,<format>]
Set command allows user either to send speech sample coming from microphone or
downlink audio channel to serial port in PCM format, or to play a PCM stream
coming from serial port to speaker or uplink audio channel.
As showed in the table below if <mode> = 3 and <dir> = 1 then the speech coming
from serial port with selected PCM <format> is sent to uplink and, at the same
time, the speech coming from downlink is sent to serial port with selected PCM
<format>.
An active speech call is needed when sending/receiving to/from audio channel.
Parameters:
<mode>: action to be execute;
1 - play PCM stream from serial to selected direction <dir>.
2 - send speech from selected direction <dir> to serial.
3 - send/receive speech to/from selected direction <dir>
<dir>: Select the audio path.
0 - send/receive to/from audio front end
1 - send/receive to/from audio channel
2 - reserved
< format >: PCM bits format
0 - 8 bit (factory default)
1 - 16 bit
Note: Execution command switches module in online mode. Module moves back
to command mode either after entering the escape sequence +++ or as a
consequence of a DTR transition.
Note: Using 16 bit it is mandatory to set +IPR at least to 230400.
The following table summarizes the status of audio path during a speech call for
different configurations and with sidetone disabled:
mode = 1
mode = 2
mode = 3
dir = 0
Uplink off / Downlink
on
PCM stream on
speaker
Uplink off / Downlink
off
PCM stream from
microphone
Not supported
dir = 1
Uplink on / Downlink
off
PCM stream on
Uplink
Uplink off / Downlink
on
PCM stream from
Downlink
Uplink on / Downlink
on
PCM stream to/from
Uplink/Downlink

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Telit Wireless Solutions LE910 and is the answer not in the manual?

Telit Wireless Solutions LE910 Specifications

General IconGeneral
BrandTelit Wireless Solutions
ModelLE910
CategoryControl Unit
LanguageEnglish

Related product manuals