Changes in 5c8c015: i2s

				Board-dat/NWI/NWI1118-dat/NWI1118-DAT.md
			
          @@ -23,6 +23,9 @@

           - IO16  = status LED

           - IO4, IO5 = I2C Pull up 

          +## installation 

          +

          +- https://t.me/electrodragon3/319

           ## ref

				Chip-cn-dat/Espressif-dat/ESP32-dat/ESP32-dev-board-dat/ESP32-lyrat-dat/2025-01-10-18-42-14.png
			
          Binary files /dev/null and b/Chip-cn-dat/Espressif-dat/ESP32-dat/ESP32-dev-board-dat/ESP32-lyrat-dat/2025-01-10-18-42-14.png differ

				Chip-cn-dat/Espressif-dat/ESP32-dat/ESP32-dev-board-dat/ESP32-lyrat-dat/ESP32-lyrat-dat.md
			
          @@ -0,0 +1,26 @@

          +

          +# ESP32-lyrat-dat

          +

          +## Board version 

          +

          +- ESP32-LyraT V4.3 

          +- ESP32-LyraT-Mini V1.2

          +

          +

          +

          +## ESP32-LyraT-Mini V1.2 Electrical Block Diagram

          +

          +![](2025-01-10-18-42-14.png)

          +

          +

          +

          +## peripherals 

          +

          +- [[ADC-dat]] - [[ES7243-dat]]

          +

          +- [[DAC-dat]] - [[ES8311-dat]]

          +

          +

          +## ref 

          +

          +- [[esp32_audio_design_guidelines__en.pdf]]

          \ No newline at end of file

				Chip-cn-dat/Espressif-dat/ESP32-dat/ESP32-dev-board-dat/ESP32-lyrat-dat/esp32_audio_design_guidelines__en.pdf
			
          Binary files /dev/null and b/Chip-cn-dat/Espressif-dat/ESP32-dat/ESP32-dev-board-dat/ESP32-lyrat-dat/esp32_audio_design_guidelines__en.pdf differ

				MOD-dat/ESPC2-12-DEV/12-22-15-19-12-2022.png
			
          Binary files a/MOD-dat/ESPC2-12-DEV/12-22-15-19-12-2022.png and /dev/null differ

				MOD-dat/ESPC2-12-DEV/23-55-14-19-12-2022.png
			
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				MOD-dat/ESPC2-12-DEV/46-55-14-19-12-2022.png
			
          Binary files a/MOD-dat/ESPC2-12-DEV/46-55-14-19-12-2022.png and /dev/null differ

				MOD-dat/ESPC2-12-DEV/52-55-14-19-12-2022.png
			
          Binary files a/MOD-dat/ESPC2-12-DEV/52-55-14-19-12-2022.png and /dev/null differ

				MOD-dat/ESPC2-12-DEV/ESPC2-12-DEV-log.md
			
          @@ -1,49 +0,0 @@

          -

          -

          -    ESP-ROM:esp8684-api2-20220127

          -    Build:Jan 27 2022

          -    rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)

          -    SPIWP:0xee

          -    mode:DIO, clock div:2

          -    load:0x3fcd5c80,len:0x1314

          -    load:0x403acb70,len:0x8f8

          -    load:0x403aeb70,len:0x254c

          -    SHA-256 comparison failed:

          -    Calculated: 74043b7cac1b10700c8bf8d3adfa93a4c4b12c826f3e53490ba390453ed0868c

          -    Expected: c52a001d3d61f27cb6cc206d2db00539deb79253bf1e44f1f9fa178b6fe913c6

          -    Attempting to boot anyway...

          -    entry 0x403acb70

          -    [0;32mI (60) boot: ESP-IDF v5.0-beta1-641-gc321739074-dirt 2nd stage bootloader[0m

          -    [0;32mI (60) boot: compile time 10:51:17[0m

          -    [0;32mI (61) boot: chip revision: V100[0m

          -    [0;32mI (67) boot.esp32c2: MMU Page Size  : 32K[0m

          -    [0;32mI (74) boot.esp32c2: SPI Speed      : 30MHz[0m

          -    [0;32mI (81) boot.esp32c2: SPI Mode       : DIO[0m

          -    [0;32mI (89) boot.esp32c2: SPI Flash Size : 2MB[0m

          -    [0;32mI (96) boot: Enabling RNG early entropy source...[0m

          -    [0;32mI (104) boot: Partition Table:[0m

          -    [0;32mI (110) boot: ## Label            Usage          Type ST Offset   Length[0m

          -    [0;32mI (121) boot:  0 nvs              WiFi data        01 02 00009000 00004000[0m

          -

          -    [0;32mI (133) boot:  1 otadata          OTA data         01 00 0000d000 00002000[0m

          -    [0;32mI (145) boot:  2 phy_init         RF data          01 01 0000f000 00001000[0m

          -    [0;32mI (156) boot:  3 ota_0            OTA app          00 10 00010000 000e0000[0m

          -    [0;32mI (168) boot:  4 ota_1            OTA app          00 11 000f0000 000e0000[0m

          -    [0;32mI (179) boot: End of partition table[0m

          -    [0;32mI (186) esp_image: segment 0: paddr=00010020 vaddr=3c090020 size=14180h ( 82304) map[0m

          -    [0;32mI (228) esp_image: segment 1: paddr=000241a8 vaddr=3fcac540 size=02618h (  9752) load[0m

          -    [0;32mI (231) esp_image: segment 2: paddr=000267c8 vaddr=40380000 size=01850h (  6224) load[0m

          -    [0;32mI (239) esp_image: segment 3: paddr=00028020 vaddr=42000020 size=8af74h (569204) map[0m

          -    [0;32mI (447) esp_image: segment 4: paddr=000b2f9c vaddr=40381850 size=0acech ( 44268) load[0m

          -    [0;32mI (468) boot: Loaded app from partition at offset 0x10000[0m

          -    [0;32mI (468) boot: Disabling RNG early entropy source...[0m

          -    iKECIN Technology Co.Ltd.(Oct 22 2022 15:41:31)

          -

          -    ready

          -

          -    sn : 

          -

          -    device Fireware : W1.KD5P7010.v1_0

          -

          -

          -

				MOD-dat/ESPC2-12-DEV/ESPC2-12-DEV.md
			
          @@ -1,37 +0,0 @@

          -

          -# ESPC2-12-DEV

          -

          -![](23-55-14-19-12-2022.png)

          -

          -![](46-55-14-19-12-2022.png)

          -

          -![](52-55-14-19-12-2022.png)

          -

          -

          -## flash 

          -![](12-22-15-19-12-2022.png)

          -

          -

          -### AT指令集

          -- • AT：测试 AT 启动

          -- • AT+RST：重启模块

          -- • AT+GMR：查看版本信息

          -- • AT+CMD：查询当前固件支持的所有命令及命令类型

          -- • AT+GSLP：进入 Deep-sleep 模式

          -- • ATE：开启或关闭 AT 回显功能

          -- • AT+RESTORE：恢复出厂设置

          -- • AT+UART_CUR：设置 UART 当前临时配置，不保存到 flash

          -- • AT+UART_DEF：设置 UART 默认配置, 保存到 flash

          -- • AT+SLEEP：设置 sleep 模式

          -- • AT+SYSRAM：查询当前剩余堆空间和最小堆空间

          -- • AT+SYSMSG：查询/设置系统提示信息

          -- • AT+SYSFLASH：查询或读写 flash 用户分区

          -- • AT+FS：文件系统操作

          -- • AT+FSMOUNT：挂载/卸载文件系统

          -- • AT+RFPOWER：查询/设置 RF TX Power

          -- • AT+SYSROLLBACK：回滚到以前的固件

          -- • AT+SYSTIMESTAMP：查询/设置本地时间戳

          -- • AT+SYSLOG：启用或禁用 AT 错误代码提示

          -- • AT+SLEEPWKCFG：设置 Light-sleep 唤醒源和唤醒 GPIO

          -- • AT+SYSSTORE：设置参数存储模式

          -- • AT+SYSREG：读写寄存器

				MOD-dat/XT-BL602-DAT/35-22-15-15-12-2022.png
			
          Binary files a/MOD-dat/XT-BL602-DAT/35-22-15-15-12-2022.png and /dev/null differ

				MOD-dat/XT-BL602-DAT/XT-BL602-DAT.md
			
          @@ -1,5 +0,0 @@

          -

          -

          -# XT-BL602-DAT

          -

          -![](35-22-15-15-12-2022.png)

          \ No newline at end of file

				MOD-dat/mod-dat.md
			
          @@ -1,4 +0,0 @@

          -

          -# mod-dat.md

          -

          -- [[ESPC2-12-DEV]] - [[XT-BL602-DAT]]

          \ No newline at end of file

				Tech-dat/Interface-dat/I2S-dat/I2S-dat.md
			
          @@ -11,6 +11,8 @@ One of the key features of I2S interfaces is their ability to support full-duple

           This makes I2S a popular choice for high-speed data transfer applications.

          +- [[I2S-microphone-dat]]

          +

           ## Pin 

           | Name | default ESP32 | also Name    | func                               | RPI GPIO | RPI pin |

				Tech-dat/Interface-dat/I2S-dat/I2S-microphone-dat/I2S-microphone-dat.md
			
          @@ -0,0 +1,74 @@

          +

          +# I2S-microphone-dat

          +

          +## go advance 

          +

          +- simultaneous data = microphones with **TDM (Time-Division Multiplexing)**

          +

          +

          +

          +

          +## demo code for interleaved data

          +

          +    #include <driver/i2s.h>

          +

          +    // I2S configuration

          +    #define I2S_NUM         I2S_NUM_0  // I2S port number

          +    #define SAMPLE_RATE     16000      // Sampling rate in Hz

          +    #define I2S_BCK_PIN     26         // Bit clock pin (SCK)

          +    #define I2S_WS_PIN      25         // Word select pin (WS/LRCLK)

          +    #define I2S_DATA_PIN    22         // Serial data pin (SD)

          +

          +    #define BUFFER_SIZE     1024       // Buffer size for audio data

          +

          +    void setup() {

          +    Serial.begin(115200);

          +

          +    // Configure I2S

          +    i2s_config_t i2s_config = {

          +        .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_RX), // Master receive mode

          +        .sample_rate = SAMPLE_RATE,

          +        .bits_per_sample = I2S_BITS_PER_SAMPLE_32BIT,        // 32-bit data

          +        .channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,        // Stereo format

          +        .communication_format = I2S_COMM_FORMAT_I2S,

          +        .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,            // Interrupt level 1

          +        .dma_buf_count = 4,                                  // Number of DMA buffers

          +        .dma_buf_len = BUFFER_SIZE                           // DMA buffer size

          +    };

          +

          +    // Configure I2S pins

          +    i2s_pin_config_t pin_config = {

          +        .bck_io_num = I2S_BCK_PIN,

          +        .ws_io_num = I2S_WS_PIN,

          +        .data_out_num = I2S_PIN_NO_CHANGE,

          +        .data_in_num = I2S_DATA_PIN

          +    };

          +

          +    // Install and start I2S

          +    i2s_driver_install(I2S_NUM, &i2s_config, 0, NULL);

          +    i2s_set_pin(I2S_NUM, &pin_config);

          +    i2s_zero_dma_buffer(I2S_NUM);

          +

          +    Serial.println("I2S initialized!");

          +    }

          +

          +    void loop() {

          +    int32_t i2s_buffer[BUFFER_SIZE]; // Buffer for interleaved audio data

          +    size_t bytes_read;

          +

          +    // Read data from I2S

          +    i2s_read(I2S_NUM, i2s_buffer, sizeof(i2s_buffer), &bytes_read, portMAX_DELAY);

          +

          +    // Process interleaved data

          +    size_t samples_read = bytes_read / sizeof(int32_t);

          +    for (size_t i = 0; i < samples_read; i += 2) {

          +        int32_t left_channel = i2s_buffer[i];     // Left channel (Microphone 1)

          +        int32_t right_channel = i2s_buffer[i+1]; // Right channel (Microphone 2)

          +

          +        // Print the audio data for debugging

          +        Serial.print("Left: ");

          +        Serial.print(left_channel);

          +        Serial.print(" | Right: ");

          +        Serial.println(right_channel);

          +    }

          +    }

				Tech-dat/tech-dat.md
			
          @@ -3,6 +3,7 @@

           - [[BOM-dat]] - [[chip-dat]] - [[chip-cn-dat]] - [[app-dat]]

          +- [[interface-dat]]

           ## Circuits

				board-3rd-dat/MOD-dat/ESPC2-12-DEV/12-22-15-19-12-2022.png
			
          Binary files /dev/null and b/board-3rd-dat/MOD-dat/ESPC2-12-DEV/12-22-15-19-12-2022.png differ

				board-3rd-dat/MOD-dat/ESPC2-12-DEV/23-55-14-19-12-2022.png
			
          Binary files /dev/null and b/board-3rd-dat/MOD-dat/ESPC2-12-DEV/23-55-14-19-12-2022.png differ

				board-3rd-dat/MOD-dat/ESPC2-12-DEV/46-55-14-19-12-2022.png
			
          Binary files /dev/null and b/board-3rd-dat/MOD-dat/ESPC2-12-DEV/46-55-14-19-12-2022.png differ

				board-3rd-dat/MOD-dat/ESPC2-12-DEV/52-55-14-19-12-2022.png
			
          Binary files /dev/null and b/board-3rd-dat/MOD-dat/ESPC2-12-DEV/52-55-14-19-12-2022.png differ

				board-3rd-dat/MOD-dat/ESPC2-12-DEV/ESPC2-12-DEV-log.md
			
          @@ -0,0 +1,49 @@

          +

          +

          +    ESP-ROM:esp8684-api2-20220127

          +    Build:Jan 27 2022

          +    rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)

          +    SPIWP:0xee

          +    mode:DIO, clock div:2

          +    load:0x3fcd5c80,len:0x1314

          +    load:0x403acb70,len:0x8f8

          +    load:0x403aeb70,len:0x254c

          +    SHA-256 comparison failed:

          +    Calculated: 74043b7cac1b10700c8bf8d3adfa93a4c4b12c826f3e53490ba390453ed0868c

          +    Expected: c52a001d3d61f27cb6cc206d2db00539deb79253bf1e44f1f9fa178b6fe913c6

          +    Attempting to boot anyway...

          +    entry 0x403acb70

          +    [0;32mI (60) boot: ESP-IDF v5.0-beta1-641-gc321739074-dirt 2nd stage bootloader[0m

          +    [0;32mI (60) boot: compile time 10:51:17[0m

          +    [0;32mI (61) boot: chip revision: V100[0m

          +    [0;32mI (67) boot.esp32c2: MMU Page Size  : 32K[0m

          +    [0;32mI (74) boot.esp32c2: SPI Speed      : 30MHz[0m

          +    [0;32mI (81) boot.esp32c2: SPI Mode       : DIO[0m

          +    [0;32mI (89) boot.esp32c2: SPI Flash Size : 2MB[0m

          +    [0;32mI (96) boot: Enabling RNG early entropy source...[0m

          +    [0;32mI (104) boot: Partition Table:[0m

          +    [0;32mI (110) boot: ## Label            Usage          Type ST Offset   Length[0m

          +    [0;32mI (121) boot:  0 nvs              WiFi data        01 02 00009000 00004000[0m

          +

          +    [0;32mI (133) boot:  1 otadata          OTA data         01 00 0000d000 00002000[0m

          +    [0;32mI (145) boot:  2 phy_init         RF data          01 01 0000f000 00001000[0m

          +    [0;32mI (156) boot:  3 ota_0            OTA app          00 10 00010000 000e0000[0m

          +    [0;32mI (168) boot:  4 ota_1            OTA app          00 11 000f0000 000e0000[0m

          +    [0;32mI (179) boot: End of partition table[0m

          +    [0;32mI (186) esp_image: segment 0: paddr=00010020 vaddr=3c090020 size=14180h ( 82304) map[0m

          +    [0;32mI (228) esp_image: segment 1: paddr=000241a8 vaddr=3fcac540 size=02618h (  9752) load[0m

          +    [0;32mI (231) esp_image: segment 2: paddr=000267c8 vaddr=40380000 size=01850h (  6224) load[0m

          +    [0;32mI (239) esp_image: segment 3: paddr=00028020 vaddr=42000020 size=8af74h (569204) map[0m

          +    [0;32mI (447) esp_image: segment 4: paddr=000b2f9c vaddr=40381850 size=0acech ( 44268) load[0m

          +    [0;32mI (468) boot: Loaded app from partition at offset 0x10000[0m

          +    [0;32mI (468) boot: Disabling RNG early entropy source...[0m

          +    iKECIN Technology Co.Ltd.(Oct 22 2022 15:41:31)

          +

          +    ready

          +

          +    sn : 

          +

          +    device Fireware : W1.KD5P7010.v1_0

          +

          +

          +

				board-3rd-dat/MOD-dat/ESPC2-12-DEV/ESPC2-12-DEV.md
			
          @@ -0,0 +1,37 @@

          +

          +# ESPC2-12-DEV

          +

          +![](23-55-14-19-12-2022.png)

          +

          +![](46-55-14-19-12-2022.png)

          +

          +![](52-55-14-19-12-2022.png)

          +

          +

          +## flash 

          +![](12-22-15-19-12-2022.png)

          +

          +

          +### AT指令集

          +- • AT：测试 AT 启动

          +- • AT+RST：重启模块

          +- • AT+GMR：查看版本信息

          +- • AT+CMD：查询当前固件支持的所有命令及命令类型

          +- • AT+GSLP：进入 Deep-sleep 模式

          +- • ATE：开启或关闭 AT 回显功能

          +- • AT+RESTORE：恢复出厂设置

          +- • AT+UART_CUR：设置 UART 当前临时配置，不保存到 flash

          +- • AT+UART_DEF：设置 UART 默认配置, 保存到 flash

          +- • AT+SLEEP：设置 sleep 模式

          +- • AT+SYSRAM：查询当前剩余堆空间和最小堆空间

          +- • AT+SYSMSG：查询/设置系统提示信息

          +- • AT+SYSFLASH：查询或读写 flash 用户分区

          +- • AT+FS：文件系统操作

          +- • AT+FSMOUNT：挂载/卸载文件系统

          +- • AT+RFPOWER：查询/设置 RF TX Power

          +- • AT+SYSROLLBACK：回滚到以前的固件

          +- • AT+SYSTIMESTAMP：查询/设置本地时间戳

          +- • AT+SYSLOG：启用或禁用 AT 错误代码提示

          +- • AT+SLEEPWKCFG：设置 Light-sleep 唤醒源和唤醒 GPIO

          +- • AT+SYSSTORE：设置参数存储模式

          +- • AT+SYSREG：读写寄存器

				board-3rd-dat/MOD-dat/XT-BL602-DAT/35-22-15-15-12-2022.png
			
          Binary files /dev/null and b/board-3rd-dat/MOD-dat/XT-BL602-DAT/35-22-15-15-12-2022.png differ

				board-3rd-dat/MOD-dat/XT-BL602-DAT/XT-BL602-DAT.md
			
          @@ -0,0 +1,5 @@

          +

          +

          +# XT-BL602-DAT

          +

          +![](35-22-15-15-12-2022.png)

          \ No newline at end of file

				board-3rd-dat/MOD-dat/mod-dat.md
			
          @@ -0,0 +1,4 @@

          +

          +# mod-dat.md

          +

          +- [[ESPC2-12-DEV]] - [[XT-BL602-DAT]]

          \ No newline at end of file

				board-3rd-dat/board-3rd-dat.md
			
          @@ -0,0 +1,4 @@

          +

          +# board-3rd-dat.md

          +

          +- [[ESP32-lyrat-dat]]

          \ No newline at end of file

...	...	@@ -23,6 +23,9 @@
23	23	- IO16 = status LED
24	24	- IO4, IO5 = I2C Pull up
25	25
	26	+## installation
	27	+
	28	+- https://t.me/electrodragon3/319
26	29
27	30
28	31	## ref

...	...	@@ -0,0 +1,26 @@
	1	+
	2	+# ESP32-lyrat-dat
	3	+
	4	+## Board version
	5	+
	6	+- ESP32-LyraT V4.3
	7	+- ESP32-LyraT-Mini V1.2
	8	+
	9	+
	10	+
	11	+## ESP32-LyraT-Mini V1.2 Electrical Block Diagram
	12	+
	13	+![](2025-01-10-18-42-14.png)
	14	+
	15	+
	16	+
	17	+## peripherals
	18	+
	19	+- [[ADC-dat]] - [[ES7243-dat]]
	20	+
	21	+- [[DAC-dat]] - [[ES8311-dat]]
	22	+
	23	+
	24	+## ref
	25	+
	26	+- [[esp32_audio_design_guidelines__en.pdf]]
...	...	\ No newline at end of file

...	...	@@ -1,49 +0,0 @@
1		-
2		-
3		- ESP-ROM:esp8684-api2-20220127
4		- Build:Jan 27 2022
5		- rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)
6		- SPIWP:0xee
7		- mode:DIO, clock div:2
8		- load:0x3fcd5c80,len:0x1314
9		- load:0x403acb70,len:0x8f8
10		- load:0x403aeb70,len:0x254c
11		- SHA-256 comparison failed:
12		- Calculated: 74043b7cac1b10700c8bf8d3adfa93a4c4b12c826f3e53490ba390453ed0868c
13		- Expected: c52a001d3d61f27cb6cc206d2db00539deb79253bf1e44f1f9fa178b6fe913c6
14		- Attempting to boot anyway...
15		- entry 0x403acb70
16		- [0;32mI (60) boot: ESP-IDF v5.0-beta1-641-gc321739074-dirt 2nd stage bootloader[0m
17		- [0;32mI (60) boot: compile time 10:51:17[0m
18		- [0;32mI (61) boot: chip revision: V100[0m
19		- [0;32mI (67) boot.esp32c2: MMU Page Size : 32K[0m
20		- [0;32mI (74) boot.esp32c2: SPI Speed : 30MHz[0m
21		- [0;32mI (81) boot.esp32c2: SPI Mode : DIO[0m
22		- [0;32mI (89) boot.esp32c2: SPI Flash Size : 2MB[0m
23		- [0;32mI (96) boot: Enabling RNG early entropy source...[0m
24		- [0;32mI (104) boot: Partition Table:[0m
25		- [0;32mI (110) boot: ## Label Usage Type ST Offset Length[0m
26		- [0;32mI (121) boot: 0 nvs WiFi data 01 02 00009000 00004000[0m
27		-
28		- [0;32mI (133) boot: 1 otadata OTA data 01 00 0000d000 00002000[0m
29		- [0;32mI (145) boot: 2 phy_init RF data 01 01 0000f000 00001000[0m
30		- [0;32mI (156) boot: 3 ota_0 OTA app 00 10 00010000 000e0000[0m
31		- [0;32mI (168) boot: 4 ota_1 OTA app 00 11 000f0000 000e0000[0m
32		- [0;32mI (179) boot: End of partition table[0m
33		- [0;32mI (186) esp_image: segment 0: paddr=00010020 vaddr=3c090020 size=14180h ( 82304) map[0m
34		- [0;32mI (228) esp_image: segment 1: paddr=000241a8 vaddr=3fcac540 size=02618h ( 9752) load[0m
35		- [0;32mI (231) esp_image: segment 2: paddr=000267c8 vaddr=40380000 size=01850h ( 6224) load[0m
36		- [0;32mI (239) esp_image: segment 3: paddr=00028020 vaddr=42000020 size=8af74h (569204) map[0m
37		- [0;32mI (447) esp_image: segment 4: paddr=000b2f9c vaddr=40381850 size=0acech ( 44268) load[0m
38		- [0;32mI (468) boot: Loaded app from partition at offset 0x10000[0m
39		- [0;32mI (468) boot: Disabling RNG early entropy source...[0m
40		- iKECIN Technology Co.Ltd.(Oct 22 2022 15:41:31)
41		-
42		- ready
43		-
44		- sn :
45		-
46		- device Fireware : W1.KD5P7010.v1_0
47		-
48		-
49		-

...	...	@@ -1,37 +0,0 @@
1		-
2		-# ESPC2-12-DEV
3		-
4		-![](23-55-14-19-12-2022.png)
5		-
6		-![](46-55-14-19-12-2022.png)
7		-
8		-![](52-55-14-19-12-2022.png)
9		-
10		-
11		-## flash
12		-![](12-22-15-19-12-2022.png)
13		-
14		-
15		-### AT指令集
16		-- • AT：测试 AT 启动
17		-- • AT+RST：重启模块
18		-- • AT+GMR：查看版本信息
19		-- • AT+CMD：查询当前固件支持的所有命令及命令类型
20		-- • AT+GSLP：进入 Deep-sleep 模式
21		-- • ATE：开启或关闭 AT 回显功能
22		-- • AT+RESTORE：恢复出厂设置
23		-- • AT+UART_CUR：设置 UART 当前临时配置，不保存到 flash
24		-- • AT+UART_DEF：设置 UART 默认配置, 保存到 flash
25		-- • AT+SLEEP：设置 sleep 模式
26		-- • AT+SYSRAM：查询当前剩余堆空间和最小堆空间
27		-- • AT+SYSMSG：查询/设置系统提示信息
28		-- • AT+SYSFLASH：查询或读写 flash 用户分区
29		-- • AT+FS：文件系统操作
30		-- • AT+FSMOUNT：挂载/卸载文件系统
31		-- • AT+RFPOWER：查询/设置 RF TX Power
32		-- • AT+SYSROLLBACK：回滚到以前的固件
33		-- • AT+SYSTIMESTAMP：查询/设置本地时间戳
34		-- • AT+SYSLOG：启用或禁用 AT 错误代码提示
35		-- • AT+SLEEPWKCFG：设置 Light-sleep 唤醒源和唤醒 GPIO
36		-- • AT+SYSSTORE：设置参数存储模式
37		-- • AT+SYSREG：读写寄存器

...	...	@@ -1,5 +0,0 @@
1		-
2		-
3		-# XT-BL602-DAT
4		-
5		-![](35-22-15-15-12-2022.png)
...	...	\ No newline at end of file

...	...	@@ -1,4 +0,0 @@
1		-
2		-# mod-dat.md
3		-
4		-- [[ESPC2-12-DEV]] - [[XT-BL602-DAT]]
...	...	\ No newline at end of file

...	...	@@ -11,6 +11,8 @@ One of the key features of I2S interfaces is their ability to support full-duple
11	11
12	12	This makes I2S a popular choice for high-speed data transfer applications.
13	13
	14	+- [[I2S-microphone-dat]]
	15	+
14	16	## Pin
15	17
16	18	\| Name \| default ESP32 \| also Name \| func \| RPI GPIO \| RPI pin \|

...	...	@@ -0,0 +1,74 @@
	1	+
	2	+# I2S-microphone-dat
	3	+
	4	+## go advance
	5	+
	6	+- simultaneous data = microphones with TDM (Time-Division Multiplexing)
	7	+
	8	+
	9	+
	10	+
	11	+## demo code for interleaved data
	12	+
	13	+ #include <driver/i2s.h>
	14	+
	15	+ // I2S configuration
	16	+ #define I2S_NUM I2S_NUM_0 // I2S port number
	17	+ #define SAMPLE_RATE 16000 // Sampling rate in Hz
	18	+ #define I2S_BCK_PIN 26 // Bit clock pin (SCK)
	19	+ #define I2S_WS_PIN 25 // Word select pin (WS/LRCLK)
	20	+ #define I2S_DATA_PIN 22 // Serial data pin (SD)
	21	+
	22	+ #define BUFFER_SIZE 1024 // Buffer size for audio data
	23	+
	24	+ void setup() {
	25	+ Serial.begin(115200);
	26	+
	27	+ // Configure I2S
	28	+ i2s_config_t i2s_config = {
	29	+ .mode = (i2s_mode_t)(I2S_MODE_MASTER \| I2S_MODE_RX), // Master receive mode
	30	+ .sample_rate = SAMPLE_RATE,
	31	+ .bits_per_sample = I2S_BITS_PER_SAMPLE_32BIT, // 32-bit data
	32	+ .channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, // Stereo format
	33	+ .communication_format = I2S_COMM_FORMAT_I2S,
	34	+ .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1, // Interrupt level 1
	35	+ .dma_buf_count = 4, // Number of DMA buffers
	36	+ .dma_buf_len = BUFFER_SIZE // DMA buffer size
	37	+ };
	38	+
	39	+ // Configure I2S pins
	40	+ i2s_pin_config_t pin_config = {
	41	+ .bck_io_num = I2S_BCK_PIN,
	42	+ .ws_io_num = I2S_WS_PIN,
	43	+ .data_out_num = I2S_PIN_NO_CHANGE,
	44	+ .data_in_num = I2S_DATA_PIN
	45	+ };
	46	+
	47	+ // Install and start I2S
	48	+ i2s_driver_install(I2S_NUM, &i2s_config, 0, NULL);
	49	+ i2s_set_pin(I2S_NUM, &pin_config);
	50	+ i2s_zero_dma_buffer(I2S_NUM);
	51	+
	52	+ Serial.println("I2S initialized!");
	53	+ }
	54	+
	55	+ void loop() {
	56	+ int32_t i2s_buffer[BUFFER_SIZE]; // Buffer for interleaved audio data
	57	+ size_t bytes_read;
	58	+
	59	+ // Read data from I2S
	60	+ i2s_read(I2S_NUM, i2s_buffer, sizeof(i2s_buffer), &bytes_read, portMAX_DELAY);
	61	+
	62	+ // Process interleaved data
	63	+ size_t samples_read = bytes_read / sizeof(int32_t);
	64	+ for (size_t i = 0; i < samples_read; i += 2) {
	65	+ int32_t left_channel = i2s_buffer[i]; // Left channel (Microphone 1)
	66	+ int32_t right_channel = i2s_buffer[i+1]; // Right channel (Microphone 2)
	67	+
	68	+ // Print the audio data for debugging
	69	+ Serial.print("Left: ");
	70	+ Serial.print(left_channel);
	71	+ Serial.print(" \| Right: ");
	72	+ Serial.println(right_channel);
	73	+ }
	74	+ }

...	...	@@ -3,6 +3,7 @@
3	3
4	4	- [[BOM-dat]] - [[chip-dat]] - [[chip-cn-dat]] - [[app-dat]]
5	5
	6	+- [[interface-dat]]
6	7
7	8	## Circuits
8	9

...	...	@@ -0,0 +1,49 @@
	1	+
	2	+
	3	+ ESP-ROM:esp8684-api2-20220127
	4	+ Build:Jan 27 2022
	5	+ rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)
	6	+ SPIWP:0xee
	7	+ mode:DIO, clock div:2
	8	+ load:0x3fcd5c80,len:0x1314
	9	+ load:0x403acb70,len:0x8f8
	10	+ load:0x403aeb70,len:0x254c
	11	+ SHA-256 comparison failed:
	12	+ Calculated: 74043b7cac1b10700c8bf8d3adfa93a4c4b12c826f3e53490ba390453ed0868c
	13	+ Expected: c52a001d3d61f27cb6cc206d2db00539deb79253bf1e44f1f9fa178b6fe913c6
	14	+ Attempting to boot anyway...
	15	+ entry 0x403acb70
	16	+ [0;32mI (60) boot: ESP-IDF v5.0-beta1-641-gc321739074-dirt 2nd stage bootloader[0m
	17	+ [0;32mI (60) boot: compile time 10:51:17[0m
	18	+ [0;32mI (61) boot: chip revision: V100[0m
	19	+ [0;32mI (67) boot.esp32c2: MMU Page Size : 32K[0m
	20	+ [0;32mI (74) boot.esp32c2: SPI Speed : 30MHz[0m
	21	+ [0;32mI (81) boot.esp32c2: SPI Mode : DIO[0m
	22	+ [0;32mI (89) boot.esp32c2: SPI Flash Size : 2MB[0m
	23	+ [0;32mI (96) boot: Enabling RNG early entropy source...[0m
	24	+ [0;32mI (104) boot: Partition Table:[0m
	25	+ [0;32mI (110) boot: ## Label Usage Type ST Offset Length[0m
	26	+ [0;32mI (121) boot: 0 nvs WiFi data 01 02 00009000 00004000[0m
	27	+
	28	+ [0;32mI (133) boot: 1 otadata OTA data 01 00 0000d000 00002000[0m
	29	+ [0;32mI (145) boot: 2 phy_init RF data 01 01 0000f000 00001000[0m
	30	+ [0;32mI (156) boot: 3 ota_0 OTA app 00 10 00010000 000e0000[0m
	31	+ [0;32mI (168) boot: 4 ota_1 OTA app 00 11 000f0000 000e0000[0m
	32	+ [0;32mI (179) boot: End of partition table[0m
	33	+ [0;32mI (186) esp_image: segment 0: paddr=00010020 vaddr=3c090020 size=14180h ( 82304) map[0m
	34	+ [0;32mI (228) esp_image: segment 1: paddr=000241a8 vaddr=3fcac540 size=02618h ( 9752) load[0m
	35	+ [0;32mI (231) esp_image: segment 2: paddr=000267c8 vaddr=40380000 size=01850h ( 6224) load[0m
	36	+ [0;32mI (239) esp_image: segment 3: paddr=00028020 vaddr=42000020 size=8af74h (569204) map[0m
	37	+ [0;32mI (447) esp_image: segment 4: paddr=000b2f9c vaddr=40381850 size=0acech ( 44268) load[0m
	38	+ [0;32mI (468) boot: Loaded app from partition at offset 0x10000[0m
	39	+ [0;32mI (468) boot: Disabling RNG early entropy source...[0m
	40	+ iKECIN Technology Co.Ltd.(Oct 22 2022 15:41:31)
	41	+
	42	+ ready
	43	+
	44	+ sn :
	45	+
	46	+ device Fireware : W1.KD5P7010.v1_0
	47	+
	48	+
	49	+

...	...	@@ -0,0 +1,37 @@
	1	+
	2	+# ESPC2-12-DEV
	3	+
	4	+![](23-55-14-19-12-2022.png)
	5	+
	6	+![](46-55-14-19-12-2022.png)
	7	+
	8	+![](52-55-14-19-12-2022.png)
	9	+
	10	+
	11	+## flash
	12	+![](12-22-15-19-12-2022.png)
	13	+
	14	+
	15	+### AT指令集
	16	+- • AT：测试 AT 启动
	17	+- • AT+RST：重启模块
	18	+- • AT+GMR：查看版本信息
	19	+- • AT+CMD：查询当前固件支持的所有命令及命令类型
	20	+- • AT+GSLP：进入 Deep-sleep 模式
	21	+- • ATE：开启或关闭 AT 回显功能
	22	+- • AT+RESTORE：恢复出厂设置
	23	+- • AT+UART_CUR：设置 UART 当前临时配置，不保存到 flash
	24	+- • AT+UART_DEF：设置 UART 默认配置, 保存到 flash
	25	+- • AT+SLEEP：设置 sleep 模式
	26	+- • AT+SYSRAM：查询当前剩余堆空间和最小堆空间
	27	+- • AT+SYSMSG：查询/设置系统提示信息
	28	+- • AT+SYSFLASH：查询或读写 flash 用户分区
	29	+- • AT+FS：文件系统操作
	30	+- • AT+FSMOUNT：挂载/卸载文件系统
	31	+- • AT+RFPOWER：查询/设置 RF TX Power
	32	+- • AT+SYSROLLBACK：回滚到以前的固件
	33	+- • AT+SYSTIMESTAMP：查询/设置本地时间戳
	34	+- • AT+SYSLOG：启用或禁用 AT 错误代码提示
	35	+- • AT+SLEEPWKCFG：设置 Light-sleep 唤醒源和唤醒 GPIO
	36	+- • AT+SYSSTORE：设置参数存储模式
	37	+- • AT+SYSREG：读写寄存器

...	...	@@ -0,0 +1,5 @@
	1	+
	2	+
	3	+# XT-BL602-DAT
	4	+
	5	+![](35-22-15-15-12-2022.png)
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,4 @@
	1	+
	2	+# mod-dat.md
	3	+
	4	+- [[ESPC2-12-DEV]] - [[XT-BL602-DAT]]
...	...	\ No newline at end of file

...	...	@@ -0,0 +1,4 @@
	1	+
	2	+# board-3rd-dat.md
	3	+
	4	+- [[ESP32-lyrat-dat]]
...	...	\ No newline at end of file