LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 194 / 231
Parameter
1. The parameter settings will be saved to NV immediately by default and will take effect after the
module is reset.
2. 4096K clock frequency is only applicable for 16K sampling rate.
3. 128K clock frequency is not supported.
Write Command
AT+QDAI=<io>[,<mode>,<fsync>,<clo
ck>[,<format>[,<sample>[,<num_slot
s>,<slot_mapping>]]]]
<io> 1 Digital PCM output (customer defined)
2 Analog output (for audio codec NAU8814)
3 Analog output (for our default audio codec ALC5616)
5 Analog output (for audio codec TLV320AIC3104)
<mode> 0 Master mode
1 Slave mode
<fsync> 0 Primary mode (short-synchronization)
1 Auxiliary mode (long-synchronization)
<clock> Clock frequency
0 128K
1 256K
2 512K
3 1024K
4 2048K
5 4096K
<format> Data format
0 16-bit linear
1 8-bit a-law
2 8-bit u-law
<sample> 0 8K
1 16K
<num_slots> 1 Number of slot
<slot_mapping> Slot mapping value. The range is 1-16.
To Next Page
Loading...
