dinuxbg / beaglemic Goto Github PK
View Code? Open in Web Editor NEWMicrophone array for PocketBeagle and BeagleBone AI
License: Other
beaglemic's People
Stargazers
Watchers
beaglemic's Issues
How to interface I2S mic?
Hello
@dinuxbg you mention that interfacing an I2S mic would be much easier, however I am trying to do so but I am having problems. I have a Beaglebone AI and a TIDA-01454 which outputs in I2S. I followed this guide for pinmuxing and tried to follow this one from TI for the codec. The soundcard is detected however when I try to record i get this error:
debian@beaglebone:/var/lib/cloud9$ arecord --device="hw:1,0" -d 20 -f S16_LE test.wav
Recording WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
arecord: pcm_read:2145: read error: Input/output error
I cant exactly copy the dts file in TI guide because mcasp1_fck isnt defined in Beaglebone AI. So how would I have to interface the codec in the DTS file?
This is my DTS file right now:
#include "am5729-beagleboneai.dts"
// make it easy to determine which dtb you're currently running on
// (via /proc/device-tree/chosen/)
/ {
chosen {
base_dtb = "am5729-beagleboneai-custom.dts";
base_dtb_timestamp = __TIMESTAMP__;
};
};
// eventually these should be available in a header
#define P9_14 (0x3400 + 4 * 107)
#define P9_16 (0x3400 + 4 * 108)
#define P9_19a (0x3400 + 4 * 16)
#define P9_19b (0x3400 + 4 * 95)
#define P9_20a (0x3400 + 4 * 17)
#define P9_20b (0x3400 + 4 * 94)
#define P9_12 (0x3400 + 4 * 171)
#define P9_27b (0x3400 + 4 * 172)
#define P9_18b (0x3400 + 4 * 173)
//
/{
pcm5102a: pcm5102a {
#sound-dai-cells = <0>;
compatible = "ti,pcm5102a";
status = "okay";
};
sound {compatible = "simple-audio-card";
simple-audio-card,format = "i2s";
simple-audio-card,name = "PCM5102a";
simple-audio-card,bitclock-master = <&sound1_master>;
simple-audio-card,frame-master = <&sound1_master>;
simple-audio-card,bitclock-inversion;
simple-audio-card,cpu {
sound-dai = <&mcasp1>;
};
sound1_master: simple-audio-card,codec {
#sound-dai-cells = <0>;
sound-dai = <&pcm5102a>;
};
};
};
// enable i2c-3 on P9.19 (scl) + P9.20 (sda)
&i2c4 {
status = "okay";
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&i2c4_pins>;
};
&mcasp1 {
#sound-dai-cells = <0>;
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&mcasp1_pins>;
op-mode = <0>; /* MCASP_IIS_MODE */
tdm-slots = <2>;
num-serializer = <4>;
/* 16 serializers */
serial-dir = < /* 1 TX 2 RX 0 unused */
2 0 0 0
>;
rx-num-evt = <1>;
tx-num-evt = <1>;
};
&dra7_pmx_core {
i2c4_pins: i2c4 {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD( P9_19a, PIN_INPUT_PULLUP | MUX_MODE7 ) // scl
DRA7XX_CORE_IOPAD( P9_19b, PIN_INPUT_PULLUP | MUX_MODE14 ) // (shared pin)
DRA7XX_CORE_IOPAD( P9_20a, PIN_INPUT_PULLUP | MUX_MODE7 ) // sda
DRA7XX_CORE_IOPAD( P9_20b, PIN_INPUT_PULLUP | MUX_MODE14 ) // (shared pin)
>;
};
mcasp1_pins: mcasp1_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(P9_12, PIN_INPUT_PULLDOWN | MUX_MODE0) // 12 0 mcasp1_aclkr BIT CLOCK BCLK
DRA7XX_CORE_IOPAD(P9_27b, PIN_INPUT | MUX_MODE0) // 27b 0 mcasp1_fsr FRAME SYNC LRCLK
DRA7XX_CORE_IOPAD(P9_18b, PIN_INPUT | MUX_MODE0) // 18b 0 mcasp1_axr0 I2S INPUT DATA
>;
};
};
// enable pwm-2 on P9.14 (out-A) + P9.16 (out-B)
&epwmss2 {
status = "okay";
};
&ehrpwm2 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&ehrpwm2_pins>;
};
&dra7_pmx_core {
ehrpwm2_pins: ehrpwm2 {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD( P9_14, PIN_OUTPUT_PULLDOWN | MUX_MODE10 ) // out A
DRA7XX_CORE_IOPAD( P9_16, PIN_OUTPUT_PULLDOWN | MUX_MODE10 ) // out B
>;
};
};
// Here's the obnoxious part: since u-boot doesn't have same pin defaults yet, all pins not
// explicitly setup above should be overridden here. This will eventually no longer be needed.
&cape_pins_default {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD( 0x372C, PIN_INPUT_PULLDOWN | MUX_MODE15 ) // P9.11a (no gpio)
DRA7XX_CORE_IOPAD( 0x3620, PIN_INPUT | MUX_MODE14 ) // P9.11b
//DRA7XX_CORE_IOPAD( 0x36AC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.12
DRA7XX_CORE_IOPAD( 0x3730, PIN_INPUT_PULLDOWN | MUX_MODE15 ) // P9.13 (no gpio)
// DRA7XX_CORE_IOPAD( 0x35AC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.14
DRA7XX_CORE_IOPAD( 0x3514, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.15
// DRA7XX_CORE_IOPAD( 0x35B0, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.16
DRA7XX_CORE_IOPAD( 0x37CC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.17a
DRA7XX_CORE_IOPAD( 0x36B8, PIN_INPUT | MUX_MODE14 ) // P9.17b
DRA7XX_CORE_IOPAD( 0x37C8, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.18a
//DRA7XX_CORE_IOPAD( 0x36B4, PIN_INPUT | MUX_MODE14 ) // P9.18b
// DRA7XX_CORE_IOPAD( 0x3440, PIN_INPUT_PULLUP | MUX_MODE14 ) // P9.19a
// DRA7XX_CORE_IOPAD( 0x357C, PIN_INPUT | MUX_MODE14 ) // P9.19b
// DRA7XX_CORE_IOPAD( 0x3444, PIN_INPUT_PULLUP | MUX_MODE14 ) // P9.20a
// DRA7XX_CORE_IOPAD( 0x3578, PIN_INPUT | MUX_MODE14 ) // P9.20b
DRA7XX_CORE_IOPAD( 0x34F0, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.21a
DRA7XX_CORE_IOPAD( 0x37C4, PIN_INPUT | MUX_MODE14 ) // P9.21b
DRA7XX_CORE_IOPAD( 0x369C, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.22a
DRA7XX_CORE_IOPAD( 0x37C0, PIN_INPUT | MUX_MODE14 ) // P9.22b
DRA7XX_CORE_IOPAD( 0x37B4, PIN_INPUT_PULLUP | MUX_MODE14 ) // P9.23
DRA7XX_CORE_IOPAD( 0x368C, PIN_INPUT_PULLUP | MUX_MODE14 ) // P9.24
DRA7XX_CORE_IOPAD( 0x3694, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.25
DRA7XX_CORE_IOPAD( 0x3688, PIN_INPUT_PULLUP | MUX_MODE14 ) // P9.26a
DRA7XX_CORE_IOPAD( 0x3544, PIN_INPUT | MUX_MODE14 ) // P9.26b
DRA7XX_CORE_IOPAD( 0x35A0, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.27a
//DRA7XX_CORE_IOPAD( 0x36B0, PIN_INPUT | MUX_MODE14 ) // P9.27b
DRA7XX_CORE_IOPAD( 0x36E0, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.28
DRA7XX_CORE_IOPAD( 0x36D8, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.29a
DRA7XX_CORE_IOPAD( 0x36A8, PIN_INPUT | MUX_MODE14 ) // P9.29b
DRA7XX_CORE_IOPAD( 0x36DC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.30
DRA7XX_CORE_IOPAD( 0x36D4, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.31a
DRA7XX_CORE_IOPAD( 0x36A4, PIN_INPUT | MUX_MODE14 ) // P9.31b
DRA7XX_CORE_IOPAD( 0x36A0, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.41a
DRA7XX_CORE_IOPAD( 0x3580, PIN_INPUT | MUX_MODE14 ) // P9.41b
DRA7XX_CORE_IOPAD( 0x36E4, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P9.42a
DRA7XX_CORE_IOPAD( 0x359C, PIN_INPUT | MUX_MODE14 ) // P9.42b
DRA7XX_CORE_IOPAD( 0x379C, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.3
DRA7XX_CORE_IOPAD( 0x37A0, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.4
DRA7XX_CORE_IOPAD( 0x378C, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.5
DRA7XX_CORE_IOPAD( 0x3790, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.6
DRA7XX_CORE_IOPAD( 0x36EC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.7
DRA7XX_CORE_IOPAD( 0x36F0, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.8
DRA7XX_CORE_IOPAD( 0x3698, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.9
DRA7XX_CORE_IOPAD( 0x36E8, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.10
DRA7XX_CORE_IOPAD( 0x3510, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.11
DRA7XX_CORE_IOPAD( 0x350C, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.12
DRA7XX_CORE_IOPAD( 0x3590, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.13
DRA7XX_CORE_IOPAD( 0x3598, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.14
DRA7XX_CORE_IOPAD( 0x3570, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.15a
DRA7XX_CORE_IOPAD( 0x35B4, PIN_INPUT | MUX_MODE14 ) // P8.15b
DRA7XX_CORE_IOPAD( 0x35BC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.16
DRA7XX_CORE_IOPAD( 0x3624, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.17
DRA7XX_CORE_IOPAD( 0x3588, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.18
DRA7XX_CORE_IOPAD( 0x358C, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.19
DRA7XX_CORE_IOPAD( 0x3780, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.20
DRA7XX_CORE_IOPAD( 0x377C, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.21
DRA7XX_CORE_IOPAD( 0x3798, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.22
DRA7XX_CORE_IOPAD( 0x3794, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.23
DRA7XX_CORE_IOPAD( 0x3788, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.24
DRA7XX_CORE_IOPAD( 0x3784, PIN_INPUT_PULLUP | MUX_MODE14 ) // P8.25
DRA7XX_CORE_IOPAD( 0x35B8, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.26
DRA7XX_CORE_IOPAD( 0x35D8, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.27a
DRA7XX_CORE_IOPAD( 0x3628, PIN_INPUT | MUX_MODE14 ) // P8.27b
DRA7XX_CORE_IOPAD( 0x35C8, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.28a
DRA7XX_CORE_IOPAD( 0x362C, PIN_INPUT | MUX_MODE14 ) // P8.28b
DRA7XX_CORE_IOPAD( 0x35D4, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.29a
DRA7XX_CORE_IOPAD( 0x3630, PIN_INPUT | MUX_MODE14 ) // P8.29b
DRA7XX_CORE_IOPAD( 0x35CC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.30a
DRA7XX_CORE_IOPAD( 0x3634, PIN_INPUT | MUX_MODE14 ) // P8.30b
DRA7XX_CORE_IOPAD( 0x3614, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.31a
DRA7XX_CORE_IOPAD( 0x373C, PIN_INPUT_PULLDOWN | MUX_MODE15 ) // P8.31b (no gpio)
DRA7XX_CORE_IOPAD( 0x3618, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.32a
DRA7XX_CORE_IOPAD( 0x3740, PIN_INPUT_PULLDOWN | MUX_MODE15 ) // P8.32b (no gpio)
DRA7XX_CORE_IOPAD( 0x3610, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.33a
DRA7XX_CORE_IOPAD( 0x34E8, PIN_INPUT | MUX_MODE14 ) // P8.33b
DRA7XX_CORE_IOPAD( 0x3608, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.34a
DRA7XX_CORE_IOPAD( 0x3564, PIN_INPUT | MUX_MODE14 ) // P8.34b
DRA7XX_CORE_IOPAD( 0x360C, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.35a
DRA7XX_CORE_IOPAD( 0x34E4, PIN_INPUT | MUX_MODE14 ) // P8.35b
DRA7XX_CORE_IOPAD( 0x3604, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.36a
DRA7XX_CORE_IOPAD( 0x3568, PIN_INPUT | MUX_MODE14 ) // P8.36b
DRA7XX_CORE_IOPAD( 0x35FC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.37a
DRA7XX_CORE_IOPAD( 0x3738, PIN_INPUT_PULLDOWN | MUX_MODE15 ) // P8.37b (no gpio)
DRA7XX_CORE_IOPAD( 0x3600, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.38a
DRA7XX_CORE_IOPAD( 0x3734, PIN_INPUT_PULLDOWN | MUX_MODE15 ) // P8.38b (no gpio)
DRA7XX_CORE_IOPAD( 0x35F4, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.39
DRA7XX_CORE_IOPAD( 0x35F8, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.40
DRA7XX_CORE_IOPAD( 0x35EC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.41
DRA7XX_CORE_IOPAD( 0x35F0, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.42
DRA7XX_CORE_IOPAD( 0x35E4, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.43
DRA7XX_CORE_IOPAD( 0x35E8, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.44
DRA7XX_CORE_IOPAD( 0x35DC, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.45a
DRA7XX_CORE_IOPAD( 0x361C, PIN_INPUT | MUX_MODE14 ) // P8.45b
DRA7XX_CORE_IOPAD( 0x35E0, PIN_INPUT_PULLDOWN | MUX_MODE14 ) // P8.46a
DRA7XX_CORE_IOPAD( 0x3638, PIN_INPUT | MUX_MODE14 ) // P8.46b
>;
};
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.