【经验】如何解决沁恒以太网协议栈管理芯片CH395串口通讯失效的问题
沁恒科技推出一款以太网协议栈管理芯片CH395,单片机加上以太网协议栈芯片CH395就能与PC或者其它网络设备之间进行以太网数据传输。可以通过主控MCU集成的8位并口、SPI接口或者异步串口中任何一种通讯接口控制CH395芯片进行以太网通讯。该方案节省产品的开发周期。具体流程如下图1所示。
图1 CH395简单应用框图
本文主要基于以太网协议栈芯片CH395在应用中,调试出现串口功能失效的问题给出解决方案。硬件设计时工程师参考规格书里的CH395应用原理图如下图2,选择常用串口通讯,在调试时串口,串口控制不工作。
图2 CH395电路图
通过上述图2,CH395原理图可以了解到SEL引脚与TXD引脚都没有外接上拉电阻和下拉电阻。基本上属于悬空,硬件设计没有问题。然后借用示波器检查SEL引脚与TXD引脚在上电时电平,发现电平有拉低的状态。结合软件初始化代码检查。发现问题的产生是在主控MCU初始化接口时,出的电平拉低影响TXD的初始状态电平变化。正常的操作方式是在主控MCU初始化接口程序后需要外部给复位CH395芯片,在CH395芯片复位电平拉高之后要延时500mS。之后再操控串口通讯功能正常。
- |
- +1 赞 0
- 收藏
- 评论 0
本文由飞翔提供,版权归世强硬创平台所有,非经授权,任何媒体、网站或个人不得转载,授权转载时须注明“来源:世强硬创平台”。
相关推荐
【经验】沁恒TCP/IP网络协议栈芯片CH395常见问题汇总及解答
在使用沁恒推出的TCP/IP网络协议栈芯片CH395时,常会遇到6个问题(即:CH395外围电路设计注意;初始化失败;与电脑无法建立TCP连接;数据接收与发送问题;芯片发热;编程注意事项),并给出这些问题的解决方案。
设计经验 发布时间 : 2022-05-18
【经验】工业以太网PROFINET从机(TPS-1)与主机(MCU)通讯初始化时序控制注意事项
瑞萨电子TPS-1是支持PROFINET协议的单芯片接口元件。它集成了PROFINET CPU、 PROFINET协议栈、 2通道以太网PHY和I/O接口,且支持最新PROFINET协议(V2.3) 。TPS-1是专用于PROFINET技术领域通信芯片,便于实现快速、简单、低成本的PROFINETIO 设备接口。TPS-1可通过并/串行接口把TPS-1连到主CPU做数据交换,TPS-1作为从机。
设计经验 发布时间 : 2018-08-15
【经验】沁恒双UART芯片CH432T 12脚HLF#信号和1脚INT#说明
CH432T是沁恒推出的双UART芯片,包含两个兼容16C550 的异步串口,支持半双工收发自动切换和IrDA 红外编解码,支持最高4Mbps 的通讯波特率。本文主要说一下12脚HLF#信号和1脚INT#这两个信号引脚。
设计经验 发布时间 : 2023-03-08
CH芯片的引脚图器件库和封装图
型号- CH366Q,CH378Q,CH451L,CH463Q,CH451S,CH32F205RBT6,CH452A,CH331A,CH246D,CH331G,CH343G,CH32F203C8T6,CH355L,CH573F,CH367L,CH440G,CH365P,CH450K,CH353L,CH462Q,CH571K,CH583M,CH32V208WBU6,CH341T,CH32V208RBT6,CH9350L,CH32V003J4M6,CH462X,CH32V305RBT6,CH342F,CH342K,CH221K,CH378L,CH9374B,CH340K,CH352L,CH376T,CH376S,CH340N,CH364P,CH582M,CH9102X-1,CH340T,CH9141K,CH340X,CH32V208GBU6,CH341B,CH341A,CH341F,CH571F,CH32V203C8T6,CH341C,CH450H,CH484M,CH351Q,CH,CH32V203G6U6,CH340E,CH582F,CH32F203C8U6,CH340C,CH32V203C8U6,CH340B,CH243K,CH340G,CH390H,CH334R,CH32V303VCT6,CH334Q,CH334P,CH552T,CH390L,CH334U,CH552P,CH334S,CH32V003A4M6,CH456G,CH335F,CH456K,CH32F203C6T6,CH359L,CH444G,CH456H,CH311L,CH541G,CH9328,CH563Q,CH9329,CH345T,CH454S,CH9326,CH343G(编带),CH334F,CH32F208RBT6,CH358L,CH334H,CH455H,CH455G,CH334G,CH32F203VCT6,CH32F208WBU6,CH552E,CH443K,CH552G,CH455K,CH540G,CH344Q,CH182H,CH182F,CH235S,CH236D,CH32V203C6T6,CH563L,CH442E,CH32V307VCT6,CH224K,CH551G,CH343P,CH181H,CH561Q,CH376T(编带装),CH452L,CH440R,CH9340K,CH9340C,CH247D,CH32F207VCT6,CH344L,CH368L,CH423S,CH32V303RCT6,CH382L,CH217X,CH32V103R8T6,CH370T,CH448F,CH32F203K8T6,CH412A,CH32V203F8U6,CH315G,CH412K,CH9143,CH557Q,CH32V203G8R6,CH9140,CH9142,CH9141,CH545L,CH543T,CH446Q,CH446X,CH9126,CH555Q,CH32F103R8T6,CH32F203RCT6,CH217K,CH568L,CH554T,CH457S,CH32V003F4P6,CH445P,CH9101Y,CH554P,CH32V303RBT6,CH9101N,CH9101R,CH9101U,CH9343G,CH579F,CH543D,CH9101H,CH32V307RCT6,CH32V203K8T6,CH334H(编带),CH9343L,CH555L,CH543K,CH9121,CH422G,CH543G,CH9120,CH32V203G8P6,CH410K,CH567L,CH32V307WCU6,CH579M,CH432Q,CH347T,CH9102X,CH444P,CH541T,CH9103,CH432T,CH541P,CH565W,CH421A,CH554E,CH9344L,CH578M,CH348L,CH554G,CH348Q,CH392F,CH227P,CH32V203F6P6,CH542G,CH9102F,CH32V203RBT6,CH483M,CH241K,CH32F203CBT6,CH32V103C8T6,CH374U,CH374T,CH374S,CH483X,CH549L,CH375C,CH549F,CH375B,CH549G,CH581F,CH9434A,CH32F103C8T6,CH559T,CH32V103C8U6,CH32V003F4U6,CH482X,CH397Y,CH548G,CH374F,CH592F,CH132F,CH548L,CH548N,CH132H,CH374G,CH32V208CBU6,CH384L,CH558T,CH32V303CBT6,CH32V305FBP6,CH547G,CH32V203K6T6,CH397A,CH547F,CH482D,CH397G,CH591D,CH397F,CH457VS,CH591F,CH438L,CH317L,CH559L,CH547L,CH438Q,CH569W,CH395L,CH424Q,CH395Q,CH412Z,CH449F,CH546G,CH372C,CH372B,CH558L,CH546L,CH481D
沁恒(WCH)通讯接口芯片和全栈MCU选型指南
描述- 南京沁恒微电子股份有限公司专注于连接技术和微处理器内核研究,是一家基于自研专业接口IP、微处理器内核IP构建芯片的集成电路设计企业。公司致力于为客户提供万物互联、上下互通的芯片及解决方案,主要产品包括USB/蓝牙/以太网接口芯片和连接型/互联型/无线型MCU,产品侧重于连接联网和控制。
型号- CH24X,CH233P,CH36X,CH32X035F8U6,CH32X035G8R6,CH32V103C6T6,CH32F205RBT6,CH370,CH372,CH251,CH343G,CH374,CH132,CH253,CH252,CH376,CH343K,CH375,CH254,CH32V006F8P6,CH378,CH377,CH440G,CH32X035,CH25X,CH32V208WBU6,CH583M,CH341T,CH32V003J4M6,CH32F103C6T6,CH233A,CH342F,CH382,CH32V006E8R6,CH384,CH342K,CH233K,CH37X,CH9374B,CH237,CH236,CH58X,CH32F103C8U6,CH340K,CH231K,CH22X,CH238,CH34X,CH340N,CH582M,CH340T,NET-SER-DT TTL,CH341B,CH341A,CH592,CH341F,CH591,CH231,CH486F,CH230,CH233,CH235,CH35X,CH32X035F7P6,CH368,CH484M,CH230K,CH23X,CH231A,CH32V203G6U6,CH340E,CH582F,CH482,CH481,CH340C,CH484,CH340B,CH483,CH365,CH486,CH364,CH340G,CH246,CH367,CH59X,CH4XX,CH366,CH578,CH334R,CH457,CH577,CH32V303VCT6,CH335,CH334Q,CH456,CH334P,CH338,CH579,CH32V,CH56X,CH334U,CH339,CH32X,CH564Q,CH334S,CH32V003A4M6,CH32X033F8P6,CH32F,CH335F,CH347F,CH32M,CH335J,CH32L,CH565M,CH451,CH571,CH450,CH444G,CH238P,CH453,CH573,CH452,CH334,CH455,CH454,CH347,CH226,CH57X,CH225,CH348,CH32X035G8U6,CH237D,CH9342G,CH334F,CH581,CH583,CH564L,CH334H,CH341,CH220,CH462,CH582,CH32F208WBU6,CH340,CH32X035R8T6,CH564F,CH343,CH342,CH221,CH463,CH334L,CH345,CH224,CH443K,CH344,CH223,CH344Q,CH555,CH557,CH315,CH318,CH54X,CH559,CH317,CH438,NET-485-9120,CH235S,CH32V002系列,CH32M007,CH236D,CH442E,CH552,CH551,CH554,CH432,CH567,CH343P,CH446,CH445,CH569,CH55X,CH448,CH568,CH440R,CH31X,CH449,CH440P,CH9340K,CH9340C,CH32F207VCT6,CH561,CH440,CH563,CH442,CH344L,CH565,CH323,CH444,CH564,CH443,CH412,CH64X,CH338X,CH52X,CH32V103R8T6,CH448F,CH32V203F8U6,CH9103M,CH32V203G8R6,CH532,CH531,CH545,CH423,CH547,CH546,CH446Q,CH53X,CH549,CH446X,CH548,CH32F103R8T6,BLE-DONGLE,CH338F,CH9104L,CH338L,CH541,CH543,CH422,CH32V003F4P6,CH9101Y,CH445P,CH9101N,CH9101R,CH9101U,CH9101H,CH32V307RCT6,CH347T,CH643,CH522,CH9102X,CH525,CH444P,CH645,CH524,CH527,CH528,CH565W,CH9344L,CH348L,BLE-SER-A-ANT,CH348Q,CH32V203F6P6,CH521,CH641,CH9102F,CH645W,CH32F203CBT6,CH32V006K8U6,CH32F207,CH32F205,CH32F203,CH32V003F4U6,CH32F208,CH645F,BLE2U-C-ANT,CH643U,CH643W,CH643Q,CH449X,CH32V303CBT6,CH32L103F8U6,CH32V305FBP6,CH569W,CH32F103,CH449F,CH32L103G8R6,CH643L,CH32X035系列,CH32F203C8T6,CH32V208RBT6,CH32V203系列,CH32V305RBT6,CH32V007系列,NET-232-9120,CH32V208GBU6,CH32L103F8P6,CH32V203C8T6,CH32V307,CH32V305,CH32F203C8U6,CH32V203C8U6,CH32V303,CH9160-DG-R0,BLE-TPT-A-ANT,CH32F203C6T6,BLE2U-A-ANT,CH9343,NET-TTL-9120,CH9328,CH9329,CH9326,CH9445,CH32L103C8T6,CH32F208RBT6,CH32F203VCT6,CH32V005F6U6,CH182H,CH182F,CH32V305GBU6,CH9434,CH32V203C6T6,CH32V307VCT6,CH181H,CH32L103系列,CH32V203F8P6,BLE-TPT-B-ANT,CH32V005D6U6,CH912X,CH32V303RCT6,CH32V005E6R6,CH32V003系列,CH32F203K8T6,NET-SER-DT RS232,CH9143,CH93XX,CH9140,CH9142,CH9141,CH9126,CH32V005F6P6,CH32F203RCT6,NET-SER-DT RS485,CH32L103,CH32V006,CH32V007,CH32V005,CH32V002,CH32V003,CH32X035C8T6,CH32V303RBT6,CH32V203K8T6,CH9121,CH9120,CH32V307WCU6,CH32V303系列,CH32F203RBT6,CH32V203RBT6,CH9350,CH483M,CH32V103C8T6,CH32V005系列,CH592X,CH483X,CH32M系列,CH230A,CH32V317,CH581F,CH32F103C8T6,CH32V103C8U6,CH482X,CH32L103K8U6,CH591R,CH32V208,CH182,CH592F,CH32V103系列,CH32V203,CH592D,CH32V208CBU6,CH914X,CH390,CH32V203K6T6,CH392,CH271,CH591D,CH482D,CH591F,CH275,CH395,CH397,CH38X,BLE232-NEP,CH32V006F8U6,CH32V103,CH39X,CH481D
沁恒多层次以太网芯片一览:高效、稳定的数据传输能力,轻松应对各式联网需求
沁恒自研的接口技术打通了以太网的垂直层次,物理层收发器、控制器芯片、协议栈芯片、转接芯片和内置PHY的MCU久经市场考验。这些高品质、易于使用的产品,为嵌入式系统高效联网、快速拓展网络连接提供了便捷、灵活的解决方案。
产品 发布时间 : 2024-07-20
沁恒以太网选型表
沁恒网络以太网系列产品选型表,覆盖PHY芯片、网络透传芯片、TCP/IP协议栈芯片、10/100M以太网控制芯片、USB转以太网、串口转以太网芯片;集成TCP/IP协议栈,可轻松实现网络与其他接口间的数据双向传输,降低串口设备联网难度,广泛应用于工业控制如伺服、变频器等,通信ICT领域、消费电子如摄像仪、监控等。
产品型号
|
品类
|
封装
|
封装说明
|
特点
|
接口
|
PHY
|
TCP/IP协议栈
|
供电电压(V)
|
电源电压(VDD 接电源正极,GND 接地)
|
工作时的环境温度(℃,VDD=3.3V)
|
异步串口(bps)
|
尺寸(mm)
|
引脚间距(mm,mil)
|
功能
|
对照型号
|
CH395Q
|
以太网协议栈芯片
|
LQFP64M
|
LQFP 封装;64 脚; 本体 10x10mm
|
MDI/MDIX极性自动转换,扩展8路GPIO,命令化控制,快速连接以太网。
|
SPI /串口
|
内置PHY 10M/100M 自适应切换
|
内部集成
|
3.3V&1.8V
|
2.7V~3.6V
|
-40℃~85℃
|
最高 3Mbps
|
10*10mm
|
0.50mm;19.7mil
|
以太网协议栈管理
|
W5500
|
选型表 - 沁恒 立即选型
沁恒基于青稞RISC-V内核的MCU和自研PHY的USB/蓝牙/以太网接口芯片,适用于计算机手机周边、工业控制、物联网
型号- CH32X035F8U6,CH32X035G8R6,CH32V303RCT6,CH32V103R8T6,CH32V103C6T6,CH32F203K8T6,CH32V203F8U6,CH32F205RBT6,CH32F203C8T6,CH32V203G8R6,CH532,CH531,CH545,CH547,CH546,CH549,CH548,CH32V208WBU6,CH32V208RBT6,CH32F103R8T6,CH32V003J4M6,CH32F103C6T6,CH32F203RCT6,CH32V305RBT6,CH32L103,CH541,CH543,CH32V003F4P6,CH32F103C8U6,CH32X035C8T6,CH32V303RBT6,CH32V208GBU6,CH32V307RCT6,CH32V203K8T6,CH32L103F8P6,CH592,CH32V203C8T6,CH591,CH32V307WCU6,CH32X035F7P6,CH522,CH525,CH527,CH32C035,CH32V203G6U6,CH32V307,CH32F203C8U6,CH32V203C8U6,CH32V203F6P6,CH521,CH32V203RBT6,CH578,CH32V303VCT6,CH577,CH579,CH32F203CBT6,CH32V103C8T6,CH32V003A4M6,CH32X033F8P6,CH32L103F7P6,CH32F203C6T6,CH571,CH573,CH32F103C8T6,CH32V103C8U6,CH32X035G8U6,CH32V003F4U6,CH32L103K8U6,CH32L103C8T6,CH32F208RBT6,CH32V208,CH581,CH583,CH32F203VCT6,CH32F208WBU6,CH582,CH32X035R8T6,CH32V208CBU6,CH555,CH558,CH557,CH559,CH32V303CBT6,CH32L103F8U6,CH32V305FBP6,CH32V203K6T6,CH32V203C6T6,CH552,CH32V307VCT6,CH551,CH554,CH567,CH569,CH568,CH32L103G8R6,CH32F207VCT6,CH561,CH563,CH32V203F8P6
【产品】沁恒以太网协议栈管理芯片CH395,集成10/100M以太网MAC和PHY,用于单片机系统进行以太网通讯
沁恒CH395是以太网协议栈管理芯片,用于单片机系统进行以太网通讯。CH395芯片自带10/100M 以太网介质传输层(MAC)和物理层(PHY),完全兼容IEEE802.3 10/100M 协议,内置了IP、DHCP、ARP、ICMP、IGMP、UDP、TCP等以太网协议栈固件。单片机系统可以方便的通过CH395芯片进行网络通讯。
产品 发布时间 : 2022-07-25
沁恒邀您莅临2024慕尼黑上海电子展
沁恒携青稞RISC-V系列MCU与多维度、多层次USB/蓝牙/以太网接口芯片精彩亮相:高性能低功耗蓝牙、USB接口转换、Type-C PD等特色板块,计算机手机周边、物联网、工业控制等场景专题,9大版面向您全方位展示沁恒全栈自研的产品体系如何针对具体应用深度优化,让专业接口更加易用,让方案开发更加便捷。
原厂动态 发布时间 : 2024-07-06
CH334U IC RoHS (SGS) Test Report (CANEC2304439901)
型号- CH32V103C6T6,CH32F103VCT6,CH32F205RBT6,CH32V103VBT6,CH370,CH251,CH372,CH132,CH374,CH252,CH376,CH375,CH378,CH32V107RCT6,CH32V208WBU6,CH32V403CBT6,CH32V003J4M6,CH32F103C6T6,CH382,CH384,CH32V305WBU6,CH237,CH358,CH32F107RCT6,CH236,CH357,CH32F103C8U6,CH238,CH359,CH32L103J4M6,CH32V103VCT6,CH590,CH350,CH471,CH592,CH591,CH231,CH352,CH351,CH472,CH593,CH233,CH354,CH232,CH353,CH235,CH356,CH234,CH355,CH248,CH247,CH368,CH249,CH32V107RBT6,CH32V203G6U6,CH482,CH360,CH481,CH242,CH484,CH241,CH483,CH244,CH365,CH486,CH122,CH243,CH364,CH246,CH367,CH245,CH366,CH457,CH578,CH3232,CH335,CH456,CH577,CH32V303VCT6,CH217,CH338,CH459,CH337,CH458,CH579,CH334U,CH339,CH32V003A4M6,CH32V405RBT6,CH570,CH330,CH451,CH572,CH450,CH571,CH332,CH453,CH574,CH331,CH452,CH573,CH213,CH334,CH455,CH576,CH454,CH575,CH226,CH347,CH225,CH228,CH227,CH348,CH32V403G6U6,CH32V407VCT6,CH32L103G6U6,CH581,CH341,CH462,CH583,CH340,CH582,CH32F208WBU6,CH343,CH464,CH221,CH342,CH463,CH224,CH345,CH344,CH465,CH314,CH556,CH313,CH555,CH316,CH558,CH315,CH557,CH318,CH317,CH438,CH559,CH319,CH32L103F4U6,CH32F103VBT6,CH552,CH32L103FBP6,CH551,CH312,CH554,CH311,CH432,CH553,CH446,CH567,CH445,CH448,CH569,CH447,CH568,CH449,CH32F207VCT6,CH440,CH561,CH321,CH442,CH563,CH441,CH562,CH323,CH444,CH565,CH322,CH443,CH564,CH413,CH534,CH412,CH533,CH536,CH538,CH537,CH539,CH32V103R8T6,CH9936,CH9937,CH32V203F8U6,CH32V403C6T6,CH530,CH32V203G8R6,CH411,CH532,CH410,CH531,CH424,CH545,CH423,CH544,CH547,CH546,CH549,CH548,CH32F103R8T6,CH32V403F8P6,CH32V407RCT6,CH541,CH32L103CBT6,CH540,CH422,CH543,CH421,CH542,CH633,CH632,CH635,CH32V003F4P6,CH634,CH516,CH637,CH636,CH639,CH638,CH32L103F4P6,CH32V307RCT6,CH32L103CBU6,CH631,CH32V203G8P6,CH523,CH522,CH643,CH525,CH524,CH527,CH526,CH529,CH528,CH32V203F6P6,CH521,CH642,CH520,CH641,CH32F107RBT6,CH32F203CBT6,CH32V105RBT6,CH32V103R6T6,CH32V403G8P6,CH622,CH621,CH32V003F4U6,CH32F103R6T6,CH32F105RCT6,CH32V403F6P6,CH32L103G8P6,CH32V105RCT6,CH32V403F8U6,CH32V403G8R6,CH32V303CBT6,DM7407,CH32L103F8U6,CH32V305FBP6,CH32L103F6P6,CH32V405FBP6,CH32L103G8R6,CH32V403K6T6,CH9415,CH9413,CH9414,CH9412,CH32F107VBT6,CH8572,CH8571,CH32F203C8T6,CH8570,CH9884,CH32V208RBT6,CH32L103C6T6,CH32V305RBT6,CH9516,CH9514,CH9515,CH9512,CH9513,CH9511,CH32V208GBU6,CH32L103F8P6,CH9882,CH32V203C8T6,CH9626,CH9627,CH9624,CH9625,CH9622,CH9623,CH32F105RBT6,CH9628,CH9629,CH32F203C8U6,CH32V203C8U6,CH9578,CH9576,CH9577,CH32V405WBU6,CH32V403C8T6,CH32F103RCT6,CH32V103RBT6,CH9100,CH9342,CH32F203C6T6,CH9341,CH9102,CH9344,CH9101,CH9343,CH9463,CH9340,CH9328,CH9327,CH9569,CH9329,CH9326,CH9565,CH9325,CH9445,CH9566,CH32V107VCT6,CH32L103C8T6,CH32V403C8U6,CH32F208RBT6,CH9331,CH9574,CH9330,CH9575,CH9573,CH32F203VCT6,CH9317,CH9318,CH9438,CH9435,CH9436,CH9315,CH9433,CH9434,CH32F107VCT6,CH32L103C8U6,CH32V103RCT6,CH9320,CH32V203C6T6,CH32V307VCT6,CH9426,CH32V107VBT6,CH32V403VCT6,CH9431,CH9552,CH9432,CH32V203F8P6,CH32V303RCT6,CH32L103K6T6,CH32F203K8T6,CH9144,CH32L103A4M6,CH9143,CH9145,CH9140,CH9142,CH9141,CH9126,CH32V407WCU6,CH32F105VCT6,CH32F203RCT6,CH9375,CH9374,CH9371,CH9370,CH9373,CH9130,CH9372,CH32V303RBT6,CH32F103RBT6,CH32V203K8T6,CH9122,CH9121,CH9120,CH32V307WCU6,CH9104,CH9346,CH9103,CH9345,CH32V403RCT6,CH32F203RBT6,CH9232,CH9110,CH9234,CH9230,CH9350,CH32V203RBT6,CH32V103C8T6,CH32V403K8T6,CH32L103K8T6,CH32F103C8T6,CH32V403RBT6,CH32V103C8U6,CH32V105VCT6,CH181,CH183,CH182,CH32V208CBU6,CH390,CH392,CH32V203K6T6,CH394,CH9165,CH396,CH395,CH32L103GBU6,CH398,CH397,CH9161,CH32F105VBT6,CH32V105VBT6,CH9397,CH9150,CH9153,CH9152
助力电力行业国产化 | 沁恒USB/蓝牙/以太网接口芯片及全栈MCU亮相电力行业盛会
4月9日~10日,沁恒携“自主核 中国芯”主题亮相杭州第四十八届中国电工仪器仪表产业发展技术研讨会及展会,依托多层次USB/蓝牙/以太网接口芯片、青稞RISC-V全栈MCU等关键技术自主可控的中国芯,向行业客户展示专业、可靠、丰富的解决方案,助力电力行业智能化,推动国产替代2.0。
原厂动态 发布时间 : 2024-04-15
电子商城
服务
Ignion可支持多协议、宽频段的物联网天线方案设计,协议:Wi-Fi、Bluetooth、UWB、Lora、Zigbee、2G、3G、4G、5G、CBRS、GNSS、GSM、LTE-M、NB-IoT等,频段范围:400MHz~10600MHz。
最小起订量: 2500 提交需求>
提供蓝牙BLE芯片协议、蓝牙模块、蓝牙成品测试认证服务;测试内容分Host主机层,Controller控制器层,Profile应用层测试。支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳 提交需求>
登录 | 立即注册
提交评论