Hi,
When i am playing audio with aplay command blank screen is coming its not terminating it self until given ctrl+c.Please have a look on dump data of codec and log.
Please have a look on below log.
We got below dump data is before aplay command in carrier board
root@rugged-board-a5d2x-sd1:~# i2cdump -f -y 0 0x18
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 00 00 10 04 00 00 00 00 00 00 01 00 00 00 80 ...??......?...?
10: 80 ff ff 78 78 78 78 78 78 02 00 fe 00 00 fe 00 ?..xxxxxx?.?..?.
20: 00 00 00 00 20 00 00 00 00 00 00 80 80 00 00 00 .... ......??...
30: 00 00 00 04 00 00 00 00 00 00 04 00 00 00 00 00 ...?......?.....
40: 00 04 00 00 00 00 00 00 04 00 00 00 00 00 00 00 .?......?.......
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
60: 00 02 00 00 00 00 02 00 00 00 00 00 00 00 00 00 .?....?.........
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
80: 00 00 00 10 04 00 00 00 00 00 00 01 00 00 00 80 ...??......?...?
90: 80 ff ff 78 78 78 78 78 78 02 00 fe 00 00 fe 00 ?..xxxxxx?.?..?.
a0: 00 00 00 00 20 00 00 00 00 00 00 80 80 00 00 00 .... ......??...
b0: 00 00 00 04 00 00 00 00 00 00 04 00 00 00 00 00 ...?......?.....
c0: 00 04 00 00 00 00 00 00 04 00 00 00 00 00 00 00 .?......?.......
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 02 00 00 00 00 02 00 00 00 00 00 00 00 00 00 .?....?.........
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Below data is after aplay command:
root@rugged-board-a5d2x-sd1:~# i2cdump -f -y 0 0x18
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 00 aa 91 dc 00 00 0a c0 00 00 00 00 00 00 20 ..???..??......
10: 20 ff ff 00 78 78 00 78 78 02 00 fe 00 00 fe 00 ...xx.xx?.?..?.
20: 00 00 00 00 20 c0 00 00 40 00 00 af af 2f 2f af .... ?..@..??//?
30: 00 00 00 0f 2f 2f af 00 00 00 0f 00 00 00 2f 2f ...?//?...?...//
40: af 0f 00 00 00 2f 2f af 0f 04 00 00 00 00 00 00 ??...//???......
50: 2f 2f af 00 00 00 0b 00 00 00 2f 2f af 0b de 0c //?...?...//????
60: 00 02 00 00 00 00 02 00 00 00 00 00 00 00 00 00 .?....?.........
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
80: 00 00 aa 91 dc 00 00 0a c0 00 00 00 00 00 00 20 ..???..??......
90: 20 ff ff 00 78 78 00 78 78 02 00 fe 00 00 fe 00 ...xx.xx?.?..?.
a0: 00 00 00 00 20 c0 00 00 40 00 00 af af 2f 2f af .... ?..@..??//?
b0: 00 00 00 0f 2f 2f af 00 00 00 0f 00 00 00 2f 2f ...?//?...?...//
c0: af 0f 00 00 00 2f 2f af 0f 04 00 00 00 00 00 00 ??...//???......
d0: 2f 2f af 00 00 00 0b 00 00 00 2f 2f af 0b de 0c //?...?...//????
e0: 00 02 00 00 00 00 02 00 00 00 00 00 00 00 00 00 .?....?.........
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
root@rugged-board-a5d2x-sd1:/mnt# aplay -r 44100 CHIKKAHOSAHALLI.MP3
Playing raw data 'CHIKKAHOSAHALLI.MP3' : Unsigned 8 bit, Rate 44100 Hz, Mono
^CAborted by signal Interrupt...
aplay: pcm_write:2051: write error: Interrupted system call
root@rugged-board-a5d2x-sd1:/mnt# aplay -r 44100 CHIKKAHOSAHALLI.MP3 -v
Playing raw data 'CHIKKAHOSAHALLI.MP3' : Unsigned 8 bit, Rate 44100 Hz, Mono
Plug PCM: Route conversion PCM (sformat=S16_LE)
Transformation table:
0 <- 0
1 <- 0
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : U8
subformat : STD
channels : 1
rate : 44100
exact rate : 44100 (44100/1)
msbits : 8
buffer_size : 22052
period_size : 5513
period_time : 125011
tstamp_mode : NONE
tstamp_type : MONOTONIC
period_step : 1
avail_min : 5513
period_event : 0
start_threshold : 22052
stop_threshold : 22052
silence_threshold: 0
silence_size : 0
boundary : 1445199872
Slave: Hardware PCM card 0 'Simple Audio' device 0 subdevice 0
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S16_LE
subformat : STD
channels : 2
rate : 44100
exact rate : 44100 (44100/1) +-----------------------------+
msbits : 16 | |
buffer_size : 22052 | Cannot
open /dev/ttyUSB0! |
period_size : 5513 | |
period_time : 125011 +-----------------------------+
tstamp_mode : NONE
tstamp_type : MONOTONIC
period_step : 1
avail_min : 5513
period_event : 0
start_threshold : 22052
stop_threshold : 22052
silence_threshold: 0
silence_size : 0
boundary : 1445199872
appl_ptr : 0
hw_ptr : 0
