keil 下usb轉(zhuǎn)串口,USB2.0接口,可接MMC卡(U盤),可作USB Audio Device(USB聲卡)。
標(biāo)簽: keil usb 轉(zhuǎn)串口
上傳時間: 2014-01-10
上傳用戶:ayfeixiao
Full compliance with the USB Specification v1.1 and USB CDC v1.1 Support the RS232 Serial interface Support automatic handshake mode Support Remote wake-up and power management 256 bytes buffer each for upstream and downstream data flow Support default ROM or external EEPROM for device configuration On chip USB transceiver On chip crystal oscillator running at 12M Hz Supports Windows 98/SE, ME, 2000, XP, Windows CE3.0, CE .NET, Linux, and Mac OS 28 Pins SOIC package 28
標(biāo)簽: Specification compliance 1.1 USB
上傳時間: 2016-08-21
上傳用戶:dapangxie
包括USB,HOST及DEVICE端源代碼,測試平臺,文檔,非常全。
標(biāo)簽: USB
上傳時間: 2013-12-22
上傳用戶:懶龍1988
The USB Multi-Interface driver is a replacement driver for the system provided Multi-Interface driver. This driver was developed to overcome some bugs that are included in the build in driver and to introduce new features. The driver is compatible to the system provided Multi-Interface driver. If the driver is installed on a system, it does not automatically replace the system provided driver. It exists parallel to the system driver and is assigned to a device during the installation process.
標(biāo)簽: Multi-Interface driver replacement provided
上傳時間: 2017-02-11
上傳用戶:asddsd
Phison MP2232 based usb controller development tool. Tweakand customize other settings of MP2232 based USB Mass storage device.
標(biāo)簽: 2232 development controller customize
上傳時間: 2013-12-26
上傳用戶:koulian
Matlab program to plot the data acquired from the USB (and placed into a TXT file) for the NIA device (Neuro impulse Actuator)
標(biāo)簽: the acquired program Matlab
上傳時間: 2014-01-06
上傳用戶:851197153
Matlab program to plot the data acquired from the USB (and placed into a CSV file) for the NIA device (Neuro impulse Actuator)
標(biāo)簽: the acquired program Matlab
上傳時間: 2013-12-18
上傳用戶:lyy1234
The SP2526A device is a dual +3.0V to +5.5V USB Supervisory Power Control Switch ideal for self-powered and bus-powered Universal Serial Bus (USB) applications. Each switch has low on-resistance (110mΩ typical) and can supply 500mA minimum. The fault currents are limited to 1.0A typical and the flag output pin for each switch is available to indicate fault conditions to the USB controller. The thermal shutdown feature will prevent damage to the device when subjected to excessive current loads. The undervoltage lockout feature will ensure that the device will remain off unless there is a valid input voltage present.
標(biāo)簽: High-Side Switch Power Dual USB
上傳時間: 2019-03-06
上傳用戶:bhitr
USB音頻方案,USB聲卡方案1. 描述ATE1133是一顆包含音頻編解碼器、HIFI級單麥克風(fēng)輸入和立體聲耳機輸出解決方案。內(nèi)部集成多個模塊,包括高速&全速USB Host/Device收發(fā)器(PHY),ARM??Cortex?-M4?32-bit?MCU內(nèi)核主頻96MHZ,16bit ADC采樣率:48、96KHZ、16bit DAC采樣率:48、96KHZ,支持標(biāo)準(zhǔn)安卓耳機線控按鍵控制,支持美標(biāo)CTIA帶耳機插拔檢測。它非常適用于USB C型桌面拓展塢、數(shù)據(jù)音頻HUB、視頻會議、Type-c耳機、C型音頻轉(zhuǎn)接頭、USB話務(wù)耳機、USB車載AUX音頻線等應(yīng)用。此外還支持上位機Windows PC端軟件界面在線調(diào)試仿真和更新片內(nèi)flash閃存。2.特點·符合USB 2.0全速運行·符合USB AUDIO & HID設(shè)備類規(guī)范·支持Headset模式·支持Microphone模式·支持Speaker模式·支持硬件設(shè)置三種模式切換·支持左右聲道平衡·麥克風(fēng)Audio-ADC參數(shù): 采樣率:48、96KHZ 位寬:16Bit THD+N=0.005% SNR≥98 Bias電壓:3V·立體聲耳機輸出Audio-DAC參數(shù): 采樣率:48、96KHZ 位寬:16Bit THD+N=0.003%(RL=32Ω) RL輸出擺幅=1.6V 直驅(qū)16/32Ω耳機,最大功率35mW·內(nèi)置低功耗ARM核心,全速運行功耗=3.3V@18ma,功耗0.06mW·支持線控耳機模式:上一曲、下一曲、播放/暫停、點按音量加減、長按音量連續(xù)加減·芯片單電源供電:3.3~5V-MAX·32針腳QFN32 4X4 封裝
標(biāo)簽: ate1133 音頻 解碼芯片 usb typec
上傳時間: 2022-03-22
上傳用戶:shjgzh
【摘要】:隨著USB接口在計算機業(yè)界應(yīng)用越來越廣泛,基于USB的接口開發(fā)顯得越來越具有現(xiàn)實意義。隨著客戶對系統(tǒng)數(shù)據(jù)采集速度要求的不斷提高,USB以其使用方便、易于擴(kuò)展、速度快等優(yōu)點而越來越多的被應(yīng)用于各種人機接口設(shè)備中。本設(shè)計提出了一種USB接口的HID數(shù)據(jù)通訊接口設(shè)計方案,USB接口芯片采用的是PHILIP的PDIUSBD12,微控器是宏晶科技的STC89C52RC。該方案具有器件通用、成本低、方便焊接調(diào)試等特點。由于本設(shè)計采用了PDIUSBD12接口芯片,通過改變微控器的代碼可以制作成各種標(biāo)準(zhǔn)的USB設(shè)備。本設(shè)計完成了一種典型的HID設(shè)備驅(qū)動程序的開發(fā),PC機無需額外加裝驅(qū)動便可實現(xiàn)和USB設(shè)備之間的通訊。而且經(jīng)過典型HID設(shè)備的枚舉過程,還可用于對USB協(xié)議的熟悉和學(xué)習(xí)。上位機軟件部分,采用了VisualC++6.0編寫HID設(shè)備的控制程序,此控制程序和HID下位機設(shè)備構(gòu)成了完整的USB控制系統(tǒng)。在此基礎(chǔ)上,本設(shè)計還增加了簡單的音樂播放功能,可以打開并播放格式為mp3和wma的音頻文件,還可以暫停、停止、選擇播放曲目、調(diào)節(jié)音量等;在音頻播放時HID設(shè)備彩燈可以實時顯示音頻的頻譜。這在驗證USB系統(tǒng)的同時,大大增加了控制的趣味性。驗證結(jié)果表明按照該方案設(shè)計的數(shù)據(jù)通訊接口和HID設(shè)計運行穩(wěn)定可靠。USB是一種計算機和外部設(shè)備進(jìn)行通訊連接的接口.USB的出現(xiàn)的目的是取代現(xiàn)在計算機接口,簡化計算機與外部設(shè)備的連接過程,使計算機的擴(kuò)展更加方便。它使得計算機和外部設(shè)備的連接十分方便。目前,各種計算機外部設(shè)備都在逐漸改為USB接口,USB技術(shù)的出現(xiàn)是計算機接口技術(shù)的一大飛躍。越來越多的測控系統(tǒng)、信號處理系統(tǒng)和智能儀器選用USB接口與PC機進(jìn)行高速、海量的數(shù)據(jù)通訊。但是,相對UART(通用異步串口)、LPT(打印機并行端口),USB的開發(fā)難度要大的多。采用HID(Human Interface Device,人機接口設(shè)備)的設(shè)計方案則可以很好的解決這一矛盾。
上傳時間: 2022-05-02
上傳用戶:shjgzh
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