You are not required to change asound.conf because this configuration file is not used
here.
More usage for aplay/arecord/amixer can be obtained by the following commands.
• aplay --h
• arecord --h
• amixer --h
25.5.3 AM/FM Codec Unit Test
This test turns on the AM/FM radio tuner (SI4763). It also sets and gets the current
station.
NOTE: An underrun error may occur sometimes.
This underrun behaviour is normal, since the test connects the AM/FM output to the
audio codec by a simple pipe.
There is no synchronization method between them. Upper layers (such as gstreamer
plugins) should be responsible for synchronization.
Input the following command in command line to start unit test:
• ./mxc_tuner_test.sh
The following infomation will be output to console window:
Welcome to radio menu.
1. Turn on the radio
2. Get current frequency
3. Set current frequency
4. Turn off the radio
9. Exit.
• To turn on the radio, select option 1.
• To get the current frequency, select option 2.
• To set the desire frecuency, select option 3 <enter> set the frequency <9740>.
• To turn off the radio, select option 4.
• To Exit select, option 9.
Chapter 25 Advanced Linux Sound Architecture (ALSA) System on a Chip (ASoC) Sound Driver
i.MX 6Solo/6DualLite Linux Reference Manual, Rev. L3.0.35_4.1.0, 09/2013
Freescale Semiconductor, Inc.
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