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README
Apache-2.0

AC79 系列WiFi&蓝牙 AIoT固件程序

快速开始

欢迎使用杰理AC79开源项目,在开始进入项目之前,请详细阅读以下芯片介绍获得对AC79系列芯片大概认识,SDK固件包不含开发文档,进行开发之前详细阅读SDK开发文档,为用户提供完善的开发例程,帮助开发者快速顺利地使用AC79系列芯片进行方案开发。

芯片概述

杰理AC79系列是一款低成本高集成度WiFi 802.11b/g/n以及双模蓝牙V2.1到V5.0组合的音视频多媒体系统级Soc。内部集成了主频高达320MHz的双核浮点DSP处理器,自带D-cache、I-cache为各类方案提供了强大的运算能力;并完整支持了单天线40MHz BW WiFi 802.11b/g/n AP和STA各种通讯模式;通过内部集成PTA共存分时设计模块,使得WiFi/蓝牙V2.1/蓝牙V5.0可同时工作,实现灵活和高性能的无线传输能力;芯片同时集成ADC/DAC接口作为音频处理资源、摄像头ISC接口作为视频处理资源、RGB推屏接口作为UI显示资源,方便实现各种高集成度的音视频多媒体处理方案,同时自带PMU模块提供多种低功耗工作模式,能使用LDO或者DCDC供电模式满足不同方案供电管理需求。

芯片应用场景

  • 儿童绘本故事机
  • 点读笔/扫描笔/翻译笔
  • WiFi蓝牙智能音箱
  • 可视门铃/视频门锁/楼宇智能
  • WiFi监控摄像头IP Camera
  • WiFi可视美容仪
  • 蓝牙/USB扫码枪
  • 婴儿监护器
  • 宠物喂食机
  • WiFi摄像头玩具
  • 智能家居/物联网设备

芯片软硬件资源介绍

CPU

  • 双核DSP,最高主频320Mhz,支持单精度浮点以及数学运算加速引擎,带I-cache、D-cache、MMU功能,片上集成了共578K字节SRAM,部分封装支持2/8M字节SDRAM

外设

  • GPIO、IIC、SPI、SDIO、PWM、MCPWM、UART、USB1.1、USB2.0、ADC、TIMER、IR接收、电容触摸按键、GPCNT、RTC

MATH

  • 支持硬件FFT、IFFT、矩阵运算

  • 支持硬件AES128/256

  • 支持硬件SHA128/256

  • 支持硬件随机数

  • 支持硬件CRC16

蓝牙

  • 符合蓝牙V5.0+BR+EDR+BLE规范

  • 支持蓝牙微微网和散射网

  • 满足class2和class3发射功率要求

  • 支持 GFSK 和 π/4 DQPSK 所有包类型

  • 提供+15dbm发射功率

  • 接收器灵敏度为 -93dBm

WiFi

  • 支持 IEEE 802.11b/g/n

  • 802.11n支持 MCS0~ MCS7、20MHz/40MHz 带宽

  • 支持800ns 和 400ns 保护间隔

  • 支持AP模式、STA模式、monitor配网模式

  • AP模式支持多个基站接入

  • STA模式支持保存多个连接网络,匹配信号最好的网络去连接

  • 支持STA模式冷启动快连

  • 支持power save mode省电模式

  • 支持Open System、WEP、WPA-PSK/WPA2-PSK + TKIP/AES/CCMP加密方式

  • 支持脱离802.11协议,直接利用底层RF收发数据包

  • 支持连接CMW270等测试仪测试板子RF性能

  • 发射功率: DSSS 1M/S 17 dBm MCS0 16 dBm MCS7 12 dBm

  • 接收灵敏度: DSSS 1M/S -95 dBm MCS0 -91 dBm MCS7 -72 dBm

音频

  • 集成DAC、MIC、LINEIN、IIS、PDM、SPDIF音频硬件模块,其中IIS模块最高支持8个通道同时工作,可单独设置成输入或者输出、支持16/24bit数据位宽 PDMLINK模块支持同时接入4路16bit数据位宽的数字麦,ADC支持4个通道同时工作,每通道皆可支持配置成MIC或者LINEIN
  • 支持SBC、MSBC、CVSD、AAC、MP2、MP3、ADPCM、AMR、OPUS、SPX、WAV、PCM音频编码格式,编码数据源支持MIC、LINEIN、IIS、PDMLINK、SPDIF和虚拟数据源
  • 支持SBC、MSBC、CVSD、AAC、ADPCM、AMR、APE、DTS、FLAC、M4A、MP1、MP2、MP3、OPUS、SPX、WAV、WMA、PCM音频解码格式,解码数据源支持FLASH、SD卡、U盘、LINEIN、外挂FM模块、网络URL、经典蓝牙、虚拟数据源、客户自定义解密数据源
  • 音效处理支持混响、回声、电音、变声变调、变速、移频、啸波抑制、EQ、DRC、回声消除、传统降噪、神经网络降噪
  • 语音识别支持活动语音检测VAD、单/双mic的打断唤醒ASR功能
  • 部分解码格式支持断点播放、快进快退、定点播放、AB点复读播放

视频

  • 支持DVP-1/2/4/8bit、 BT656图像传感器接口的YUV sensor,最大支持720P分辨率
  • JPEG编码最大支持720P@30fps@AVI封装
  • 支持任意尺寸JPEG单张编解码
  • 支持SPI接口摄像头
  • 支持一路DVP摄像头 + 一路SPI摄像头, 可同时输出YUV,一路联动JPEG图传或录卡,另一路做光流算法
  • 支持图像拼接功能,图像分辨率为176*128,帧率可高达60帧
  • 支持软件对摄像头YUV帧缩放、裁剪

显示

  • 支持SPI、EMI、PAP、RGB888(8bit)/RGB666(6bit) 推屏接口,其中RGB推屏可达480*272@15fps,320*240@30fps
  • 杰理UI工具可支持屏触摸、软件显示图层、软件旋转图像、音标显示、自定义合成显示区域、支持不同大小字体同时显示,支持SD卡加载UI资源文件
  • 支持播放JPG、AVI、GIF文件

网络协议栈

  • 基础协议支持:lwip、mbedtls、http/https、websocket、coap、nopoll、curl、mqtt、ftp、uip、iperf

  • AI云平台支持:图灵、百度云、腾讯云、中国电信智能家居平台、涂鸦、阿里云、华为hilink、天猫精灵、亚马逊平台、思必弛、玩瞳

固件升级

  • 支持U盘/SD卡单备份升级
  • 支持U盘/SD卡/WIFI双备份升级
  • 支持代码双备份+资源部分备份+资源部分固定方式升级

WiFi测试盒

  • 支持发射功率、灵敏度、频率偏差参数测试,频率偏差校正
  • 支持UI人机交互
  • 支持双模块同步测试
  • 支持传导、空中两种测试方式
  • 支持样本标定与样本筛选
  • 支持CDROM,存储上位机软件及使用文档
  • 支持上位机参数配置、本地固件升级、出厂校准
  • 支持辅助通信(UART)

SDK中间件

  • FAT文件系统
  • 数据存储记忆
  • FreeRtos/Pthread API
  • 循环CBUF
  • 帧LBUF

参考资源

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简介

Firmware for Generic WiFi & Bluetooth Combo SDK(AC79 series) 展开 收起
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