标准I2S有3个主要信号: 串行时钟BCLK,帧时钟LRCLK,串行数据SDATA。串行时钟BCLK也叫位时钟,即对应数字音频的每一位数据。帧时钟LRCLK用于切换左右声道的数据。LRCLK为“1”表示正在传输的是右声道的数据,为“0”则表示正在传输的是左声道的数据,LRCLK的频率等于采样频率。串行数据SDATA就是用二进制补码表示的音频数据。
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Cannot retrieve contributors at this time 1044 lines (954 sloc) 40.4 KB Raw Blame // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License....
Settings associated with provisioning a device can be modified in thelocal.propertiesfile. Add below lines inlocal.propertiesand customize as per your requirement. transport=Both security=Sec1 POP=abcd1234 isScheduleSupported=true isLocalControlSupported=true Description of each key can be found below...
(gray_img); } return line_result; } static void draw_lines(dl_matrix3du_t *image_matrix,line_array_t *lines) { int x0, y0, x1, y1, w, h, i, j; float temp = 0.0; uint32_t color = FACE_COLOR_RED; fb_data_t fb; fb.width = image_matrix->w; fb.height = image_matrix...
83aaee86d8 esp-idf/components/esp_local_ctrl/include/esp_local_ctrl.h Go to file Go to file T Go to line L Copy path Cannot retrieve contributors at this time 339 lines (304 sloc) 11.2 KB Raw Blame // Copyright 2019 Espressif Systems (Shanghai) PTE LTD // // Licen...
v4.3-beta1 esp_http_client esp_http_server esp_https_ota esp_https_server esp_hw_support esp_ipc esp_local_ctrl esp_netif esp_pm esp_ringbuf esp_rom esp_serial_slave_link esp_system esp_timer esp_websocket_client esp_wifi espcoredump ...
Breadcrumbs esp-idf /components /hal /include /hal / adc_types.hTop File metadata and controls Code Blame 441 lines (414 loc) · 21.4 KB Raw // Copyright 2020 Espressif Systems (Shanghai) PTE LTD // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not...
static vfs_semihost_ctx_t s_semhost_ctx[CONFIG_SEMIHOSTFS_MAX_MOUNT_POINTS]; static inline int generic_syscall(int sys_nr, int arg1, int arg2, int arg3, int arg4, int* ret_errno) { int host_ret, host_errno; if (!esp_cpu_in_ocd_debug_mode()) { *ret_errno = EIO; return ...
273 lines (246 sloc) 10.1 KB Raw Blame // Copyright 2017 Espressif Systems (Shanghai) PTE LTD // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at...