传感器论坛 - 最近的话题

TMAG5170-Q1: TIDA-060045 文中有误

zhenjun gao — Tue, 20 Oct 2026 02:10:24 GMT

Part Number: TMAG5170-Q1

您好，

请看附图：

最左侧芯片的cs没有被连接上，虽然后面原理图有看到有连接关系。

谢谢！

OPT3001-Q1: OPT3001-Q1晶圆

hankin he — Mon, 19 Oct 2026 10:40:42 GMT

Part Number: OPT3001-Q1

OPT3001-Q1的晶圆厂是哪家？

DCA1000EVM: DCA1000EVM: Timeout Error! System disconnected, Unable to read FPGA Version. [error -5]

yu lin — Thu, 15 Oct 2026 09:06:55 GMT

Part Number: DCA1000EVM
Other Parts Discussed in Thread: IWR1642BOOST

Hi,

Setup:
- DCA1000EVM + IWR1642BOOST
- mmWave Studio 02.01.01.00, DCA1000 FPGA 2.8 (from Studio PlatformBinaries)
- SW2.5 = SW_CONFIG, SW2.6 tried both pin6 (EEPROM) and pin11 (FPGA internal default)
- DCA1000 powered by external 5V/3A supply

Issue:
After "Connect, Reset and Configure":
- "Timeout Error! System disconnected"
- "Unable to read FPGA Version [error -5]"

CLI:
- query_sys_status -> disconnected
- fpga_version -> error -5

Wireshark (arp || udp.port==4096):
- only 192.168.33.30 -> 192.168.33.180:4096
- no reply from 192.168.33.180

Hardware:
- 5V LED green
- LD14 DONE green (FPGA configured from SPI Flash)
- J6 Ethernet orange solid / green blink
- LD9 not lit

Already tried:
- reflashed FPGA via Lattice Programmer, verify OK
- firewall off, only one NIC enabled, Wi-Fi disabled
- second PC with onboard gigabit port, same result

Is there any further debug step I can try, or does this look like a DCA1000EVM hardware failure?

Thanks.

AWR2243-2X-CAS-EVM: 有关AWR2243-2X-CAS-EVM级联板的相关问题

youfa ning — Thu, 15 Oct 2026 07:35:26 GMT

Part Number: AWR2243-2X-CAS-EVM

TI你好，我通过查阅级联文档中发现，满足20GHz、SYNC和40MHz同步，就能实现芯片之间的级联，那么有这样一个想法，如果是基于AWR2243-2X-CAS-EVM二级联板设计文件，设计一个这样的辅助板，将主芯片的20GHz、SYNC分别引出，通过辅助板进行功放和功分，然后分别分发至两块AWR2243-2X-CAS-EVM，40MHz同步通过外部接入，然后通过时钟缓冲芯片分出四路给这两块级联板，这样满足了四个芯片的20GHz、SYNC和40MHz同步，从而形成了两块AWR2243-2X-CAS-EVM的级联，固件则采用官网给出来的固件进行烧录。请问这样的想法是否可行呢？

AWR2188EVM: AWR2188EVM 资料下载链接失效

Bin Zhang — Thu, 15 Oct 2026 02:52:49 GMT

Part Number: AWR2188EVM

我在下载AWR2188EVM资料的时候发现有一个链接404了，链接：www.ti.com/.../SLVMEN8 。昨天通过线上反馈给贵公司，但目前还没解决。

如方便的话，烦请您通过邮件将该资料发送给我。

TMAG5170-Q1: 此传感器磁场感应区域范围多大

zhenjun gao — Thu, 15 Oct 2026 01:46:03 GMT

Part Number: TMAG5170-Q1

您好，

请问想知道此传感器阵列排布时，两传感器间距多少合适，需要知道此传感器磁场感应区域大小，谢谢。

AWR2243BOOST: AWR2243+DCA1000EVM是否需要启用 RF LDO Bypass？

Zicong Wang — Wed, 14 Oct 2026 13:13:27 GMT

Part Number: AWR2243BOOST
Other Parts Discussed in Thread: DCA1000EVM, AWR2243,

使用AWR2243+DCA1000EVM，软件mmWave Studio 03.00.00.14。

我使用 AWR2243BOOST（芯片 ES1.1）和 DCA1000EVM，通过 mmWave Studio 03.00.00.14 采集数据。
AWR2243BOOST 用户指南 SPRUIT8D 第 23 页、3.1 节要求选中“RF LDO Bypass Enable”和“PA LDO I/P Disable”，但我参考的 mmWave Studio 2G用户指南说明 EVM 不应启用 RF LDO bypass。
请确认：对于我的硬件组合，是否应同时勾选这两个选项？该要求是否随 AWR2243BOOST 的 PCB 修订变化？Studio 3.1.4 手册中的说明是否不适用于 AWR2243BOOST？

TMCS1108EVM: 開發測試樣品需求

奕甫 TSAI — Wed, 14 Oct 2026 03:56:59 GMT

Part Number: TMCS1108EVM

這邊開發測試需要申請1個樣品

AWR2188: 我希望获取AWR2188的资料被拒绝

Yu Fu — Sun, 11 Oct 2026 01:59:47 GMT

Part Number: AWR2188

我希望获取AWR2188的资料被拒绝；
我们计划使用2188来设计一款车载/船载的防撞雷达

FDC2214EVM: Calculate sensor capacitance in FDC2214 EVM single ended connection method

cunzhong min — Fri, 09 Oct 2026 05:40:11 GMT

Part Number: FDC2214EVM
Other Parts Discussed in Thread: FDC2214

We need to test the two capacitance sizes of the ceramic pressure sensor, using a single ended connection method and an FDC2214 EVM development board for testing. The entire CEQ capacitance can be measured, including LC oscillation capacitance of 33pf, parasitic capacitance, and sensor capacitance. We need to obtain accurate sensor capacitance, so we need to know the connection relationship between these three capacitors. We calculated according to the "FDC2x1y Single ended sensor" method, but we still couldn't get accurate results.

Please provide guidance.

DRV411: DRV411+HW322B构成的闭环霍尔带宽问题

fenghao sanli — Thu, 08 Oct 2026 09:57:06 GMT

Part Number: DRV411

DRV411+HW322B构成的闭环霍尔，驱动的补偿绕组电感能达到100mH以上吗，我制作的补偿绕组电感达到125mH，发现在1kHz输出电流误差就达到5%，而在50Hz，输出电流误差仅为0.1%，电路使用DRV411直接驱动补偿绕组，使用Gain_3模式。当补偿绕组的电感较大时，是否需要特殊处理呢，为什么会出现以上现象呢？？

PGA970: I would like a specific Pga970 manual.

Z Z — Thu, 08 Oct 2026 07:58:27 GMT

Part Number: PGA970

I am currently planning to design a half-bridge inductive displacement sensor. I intend to use the PGA970 for demodulation. I am looking for a detailed manual for the PGA970.

FDC2114: CS3608089: 开发板使用问题

cunzhong min — Thu, 08 Oct 2026 07:11:08 GMT

Part Number: FDC2114
Other Parts Discussed in Thread: FDC2214

使用FDC2214 evm开发过程中有几个问题反馈，已关闭工单是：CS3608089: 开发板使用问题

请查看邮件。

IWRL6432BOOST: IWRL6432BOOST购买前咨询

JIACHEN LI — Thu, 08 Oct 2026 05:42:18 GMT

Part Number: IWRL6432BOOST

您好，我计划购买 IWRL6432BOOST，用于单人站立、坐姿和跌倒识别的演示，不需要精细人体建模，也不用于医疗或安全保障。

我希望使用现成例程和预训练模型，尽量不自行采集训练数据。购买前请协助确认：

1. 当前发布的 Pose and Fall Estimation 或其他姿态识别例程，是否明确支持 IWRL6432BOOST？能够直接识别哪些状态？尤其是否包含站立、坐姿和跌倒？

2. 是否提供可直接烧录的固件、预训练模型、板卡配置文件及配套上位机？请提供下载链接、软件版本和使用指南。

3. 运行上述演示是否只需要 IWRL6432BOOST、USB连接线和Windows电脑，不需要额外底板、外置调试器或DCA1000采集卡？

4. 是否可以同时获取或保存3D点云数据，包括XYZ坐标和帧编号？是否提供数据协议或Python解析示例？

5. 演示对安装高度、角度、目标距离和场地有什么要求？能否持续区分静止站立与静止坐姿，而不仅是检测运动？

6. 如果后续增加蹲下识别，现成例程是否已经支持？如果不支持，需要修改判断逻辑还是重新训练模型？

感谢！

FDC1004: FDC1004使用？

Simba Su — Thu, 08 Oct 2026 01:44:44 GMT

Part Number: FDC1004

1、根据手册里说的校准的时候使用CAPDAC进行粗调，再使用offset进行细调，最终目的是将寄存器回读的值对应到0pf上吗？

2、回读的真实电容值又加回了CAPDAC的粗调值，但没有加回offset的值是为什么？

PGA970: PGA970 – Can the S1/S2 amplitude demodulators work with an external 24.42-kHz excitation?

Z Z — Wed, 07 Oct 2026 11:32:34 GMT

Part Number: PGA970

Hello,

I am evaluating the PGA970 as a replacement for an AD698 in an inductive displacement sensor application.

My sensor is not a conventional three-winding LVDT. It is a differential inductive half-bridge consisting of two series-connected sensing coils with a center tap.

The present connection is approximately:

External excitation / ROUT+ / BINP
       24.42 kHz, 0 to 5 V
                |
              Z1(x)
                |
            AINP1
         center tap
                |
              Z2(x)
                |
         ROUT- / BINM
                |
               GND

The existing AD698 uses the excitation signal as the B-channel reference and the center-tap voltage as the A-channel signal.

For the PGA970 replacement, I would like to keep the existing external excitation at 24.42 kHz and 0 to 5 V, rather than using the PGA970 internal waveform generator.

My intended PGA970 signal path is:

S1: attenuated/conditioned center-tap signal AINP1
S2: attenuated/conditioned actual excitation signal ROUT+
Cortex-M0: calculate the ratio of the two demodulated amplitudes

Position would then be obtained from the calibrated value of \(R\).

I do not require phase information for position determination. I mainly need stable amplitude demodulation of both channels.

Could you please confirm the following:

Can the PGA970 S1 and S2 amplitude demodulators correctly process signals generated by an external 24.42-kHz excitation source, while the PGA970 internal primary waveform generator is not used?
Is the amplitude demodulation function inherently synchronized to the PGA970 internal primary excitation, or can it provide a valid amplitude measurement for an asynchronous external excitation?
The documented DEMOD1/DEMOD2 BPF center frequencies appear to extend to approximately 20 kHz. Can the BPF be configured for 24.42 kHz?
If 24.42 kHz is supported, could you provide the recommended BPF coefficients/register configuration for this frequency?
Can the Cortex-M0 access both demodulated amplitude results and calculate

\[ |S1|/|S2| \]

in real time?

My excitation signal is approximately 0 to 5 V at 24.42 kHz. I understand that this signal cannot be connected directly to S2. What input amplitude and common-mode voltage do you recommend after attenuation/AC coupling for S1 and S2?
What is the approximate total signal-chain delay/group delay from S1/S2 input through the digital demodulator to the result available to the Cortex-M0? This sensor will be used as position feedback in a magnetic-bearing closed-loop control system, so latency is important.

My main requirement is to determine whether the PGA970 can replace the AD698 without changing the existing 24.42-kHz sensor excitation.

Thank you.

IWR6843ISK: IWR6843ISK software download ERROR I need an approval

YU-TAI 育溙 OU 歐 — Thu, 01 Oct 2026 06:35:43 GMT

Part Number: IWR6843ISK
Other Parts Discussed in Thread: DCA1000EVM

Dear TI Customer Support Team,

I am writing to follow up on my software access request. I previously requested access to download the software, but the request was declined.

To provide more context and verification, I have purchased and currently own the official TI hardware:
- IWR6843ISK evaluation module
- DCA1000EVM data capture board

Version: 2019

I require access to download the corresponding software (e.g., mmWave SDK / mmWave Studio) to capture raw radar data and evaluate these hardware modules for our project.

Could you please assist me in granting the download permissions or let me know if any further end-user verification is required?

Thank you for your support.

Best regards,

AWR2243: 有关使用AWR2243设计级联板相关问题

youfa ning — Tue, 29 Sep 2026 11:04:22 GMT

Part Number: AWR2243

你好，TI，在参考TI设计的AWR2243-2X-CAS-EVM和MMWCAS-RF-EVM基础上，自己用AWR2243芯片实现四个芯片级联。在我看来，最重要的是20GHz射频同步信号和80GHz射频信号，由于MMWCAS-RF-EVM PCB已经做了20GHz射频同步信号与80GHz射频信号的阻抗匹配和等长，而我计划自己设计微带贴片天线，然后通过重新布置天线的摆放位置，从而将芯片的TX和RX分别引出来至天线馈电处，叠层结构不变，威尔金森功分器及其对应的20GHz走线不变，芯片位置不变，射频接地共面波导采用MMWCAS-RF-EVM所设计的，那么有以下几个问题：

1、进行天线设计时，在76~81GHz的频带范围内除了S11＜-10dB、端口处进行50欧姆阻抗匹配以外，还需要注意些什么呢？

2、重新布置天线的摆放位置，除了对于每一路TX和每一路RX做等长以外，还需要注意些什么呢？

PGA970: Request for PGA970 Software / Program User Guide for Instrument Development

ZHIHONG LIN — Sun, 27 Sep 2026 11:17:53 GMT

Part Number: PGA970

While reviewing the PGA970 product documentation on the TI website, we noticed that some of the software-related user guides (such as the PGA970 software or program user guide) are unavailable through direct download. We would like to formally request access to these documents to support our design, integration, and validation activities.

AWR2243: I have several questions regarding my study of the AWR2243 calibration documentation.

youfa ning — Wed, 23 Sep 2026 10:16:06 GMT

Part Number: AWR2243

Hello TI, I am currently studying the single-chip calibration of AWR2243 and calibration for multi-chip cascading. In the AWR2243 single-chip calibration document (Self-Calibration in TI’s mmWave Radar Devices), the third calibration item is LO Distribution Calibration.

It is mentioned in the document that a set of buffers distributes the LO signal to the transmit and receive paths respectively. I suspect the buffers are located within the red block shown in the figure below.

The document mentions that LO Distribution Calibration is implemented by combining closed-loop calibration using on-chip power detectors to suppress process variations and lookup table compensation for temperature drift. I would like to confirm whether the on-chip power detectors refer to the block marked with the red box in the attached figure.

If this is the case, the LO routed to the TX path can be calibrated via the PD. However, how is the LO distributed to the RX path calibrated?

If not, I fail to understand the underlying principle of closed-loop calibration using on-chip power detectors to suppress process variations. Your advice would be highly appreciated.

LDC1614: LDC1614对于无线充电模块的防护措施

shuo guo — Tue, 22 Sep 2026 05:52:45 GMT

Part Number: LDC1614

使用LDC1614制作感应线圈，线圈在2.4MHz情况下，感值达到14uH，LDC每一路外接一个多路选择开关，型号为SN74CBLV3251，开关一分为八，LDC1614一共有4路检测，这样就可以外接出32个线圈，用着32个线圈排成4*8阵列，用作于检测手机内部线圈使用，以下统称为检测板，这样手机放在任意位置，都可以检测到大概位置，下面可动机构拖拽着检测板下方的有一个无线充电模块，工作频率120kHZ,充电电压为12V，给手机充电，然而充电时间过长的时候，上方检测板子线圈会接收到能量，进而回流反灌给LDC和多路开关损坏，

我这边做出两个对策：1.充电过程中软件控制将LDC电源关断，仅保留无线模块充电，但是依旧无效会损坏

2.在这1的基础上，线圈到多路开关之间追加对地TVS管，效果有所改善但是还是会损坏板子

请问有什么方法可以让LDC的线圈不接收到下方无线充电模块板子的干扰呢？

LMP91200: lmp91200用来接氯离子电极测量氯离子溶度是否可行

JIUGEN LI — Sun, 20 Sep 2026 03:38:39 GMT

Part Number: LMP91200

手册里面介绍的都是PH计测量，我现在想用来接氯离子电极和对应参比电极测氯离子溶度这款芯片是不是也很适合。

AWR2243BOOST: 只买一个2243boost可以直接运行使用吗

zhuohao ma — Fri, 18 Sep 2026 07:23:28 GMT

Part Number: AWR2243BOOST

只买一个2243boost可以直接运行使用吗

FDC2214: FDC2214 读取的电容值（谐振频率）无法稳定

Wang Jim — Thu, 17 Sep 2026 01:32:51 GMT

Part Number: FDC2214

使用FDC2214做水位检测，在环境不变的情况下，读取的电容值始终不一致，无法获得稳定的结果输出

TMAG5170: TMAG5170读出数据格式问题

zhenjun gao — Wed, 16 Sep 2026 07:08:36 GMT

Part Number: TMAG5170

您好，

对TMAG5170测试经过缺陷时，缺陷两侧磁场方向是相反的，请问如果磁场强度是-5mT，那么对应的电压值是负电压吗?软件将读出的负磁场转换成负电压，见下图1：

图1

按照理论分析，缺陷两侧的电压信号应该是包络线，类似下图：

有一种说法图1一直在负电压，是提离值增大导致背景磁场基线下降的原因导致的。

我的问题是软件将电压转换成负电压，和图1出现情况是否有关系。原始数据见附件正8横0.8.csv.xlsx

谢谢！