传感器论坛 - 最近的话题

MSP430FR6047: MSP430FR6047 water flow measurement: intermittent errors 135/138 and prolonged zero DToF despite valid UPS/DNS AbsToF and ADC captures

wei liu — Fri, 06 Nov 2026 03:32:57 GMT

Part Number: MSP430FR6047
Other Parts Discussed in Thread: EVM430-FR6047

Hello TI team,
I am developing a small-diameter ultrasonic water flow meter using an EVM430-FR6047, a pair of clamp-on transducers [manufacturer and exact model], and a 20 mm PVC test pipe. I use Ultrasonic Sensing Design Center Water Mode, version 02.40.00.00.
My main issue is that the ADC captures often show signals in both UPS and DNS channels, but the reported Delta ToF (DToF) and volume flow rate sometimes stay exactly zero for an extended period while the pump is running. I did not intentionally change the configuration or reflash the firmware between those runs.
The Errors tab also reports:
• 135: DToF – Shift value was greater than maxSampleShift
• 138: DToF – Correlation threshold error
These errors appear intermittently.
Current configuration, as shown in my screenshots:
• Transmit frequency: 1000 kHz; single tone; 18 pulses
• Signal sampling frequency: 4000 kHz; ADC oversampling ratio: 20
• Gap between pulse start and ADC capture: tested around 50–57 µs, including 52 µs
• Capture duration: 40 µs
• GUI gain: 22.8 dB
• Envelope Crossing Threshold: 10
Could you please advise:
1. When errors 135 and 138 occur, does the FR6047 water demo intentionally report DToF/VFR as zero, retain an old result, or use another error-handling behavior?
2. For the ESTIMATE DToF mode, what waveform or correlation conditions typically cause errors 135 and 138 together? Which configuration parameters should be checked first?
3. Does the strong signal at ADC buffer index 0 suggest that the useful received wave packet is being captured too late, or could this be expected for this configuration?
4. Is increasing USS_ALG_MAX_SAMPLE_SHIFT appropriate here? How can I distinguish a genuine large shift from matching the wrong lobe or a reflected signal?
5. Which diagnostic values or intermediate results should I log in firmware to determine why DToF becomes continuously zero despite valid-looking UPS/DNS AbsToF?
I can attach the configuration screenshots, representative good and bad ADC captures, Waveforms CSV files, and the error log. Could you offer some suggestions to help me solve the problems shown in my screenshot? Thank you.

TMP117: 发现有2个元件ID重复

SHUFEN LIU — Wed, 04 Nov 2026 02:38:29 GMT

Part Number: TMP117

采购的1020只TMP117元件，我们这次次数发现有2个元件ID重复，重复ID为0000D1820F8CE058 麻烦看下是什么情况呢?

1.没有对EEPROM 进行过重新编程，只是做读取;
2.我们是通过配置引脚外部对ADD0与V+进行短接，实现0x49地址值;
3.没有挂载在同个总线上，都是单个产品进行读取ID;
4.更换测试软件进行读取同样会得到同一个ID.

AWR2243BOOST: 基于AWR2243BOOST的设计

youfa ning — Tue, 03 Nov 2026 12:03:42 GMT

Part Number: AWR2243BOOST

TI您好，我参考了AWR2243BOOST的设计文档，我目前想将2块AWR2243BOOST进行级联，通过参考级联手册，需要将40MHz，20GHz和SYNC信号进行同步，然后通过API配置主从芯片实现级联。由此我基于AWR2243BOOST的设计文档，将芯片的20GHz信号引出来，通过接入一个辅助模块，辅助模块用于实现上述三类级联信号的同步，辅助模块将20GHz信号进行功分，然后分别输入给两块AWR2243BOOST芯片的20GHz输入引脚，其余两类信号同理。下面是我基于AWR2243BOOST的设计文档，根据上述设想实现的原理图部分awr2243boost.pdf ，请问该设计是否合理呢？如果哪里有问题的话，还请指正一下。

AWR2944EVM: AWR2944 ES1.0：BSS/MSS 固件加载并显示版本号，但 RF Enable 返回 RESP TIMEOUT

wanli wang — Sat, 31 Oct 2026 01:32:39 GMT

Part Number: AWR2944EVM
Other Parts Discussed in Thread: SHA-256, AWR2944

您好，TI 技术支持团队：

我正在使用 AWR2944EVM 和 mmWave Studio 3.1.4.4。设备可以正常识别和连接，BSS 与 MSS 固件也能成功下载并读取版本号，但执行 RF Power-up 时，`ar1.RfEnable()` 返回超时。

硬件及软件信息

雷达板：AWR2944EVM
设备状态：
```
AWR2944/GP/ASIL-B/SOP:2/ES:1.0
```
Part number：
```
0x98
```
Die ID：
```
Lot:1314526/Wafer:33/DevX:11/DevY:520
```
mmWave Studio：3.1.4.4
RS232 控制端口：COM16
当前测试波特率：921600
FTDI Connectivity：Connected
RS232 Connectivity：Connected
SPI Connectivity：Connected

使用的固件

BSS 固件：

rf_eval_firmware\radarss\xwr29xx_radarss_rprc.bin

MSS 固件：

rf_eval_firmware\masterss\awr2xxx_mmwave_full_mss_rprc.bin

加载后返回的版本为：

BSS firmware version: 02.04.00.18 (15/02/21)
BSS Patch version:    02.04.10.02 (12/06/24)
MSS firmware version: 02.04.02.17 (08/07/24)
MSS Patch version:    NA

可以成功执行的步骤

以下操作均可以成功完成：

板卡复位和 SOP 设置
RS232 连接
设备识别
BSS 固件下载
MSS 固件下载
MSS PowerOn
SPI Connect

失败现象

点击 RF Power-up 后出现：

[RadarAPI]: ar1.RfEnable()
Status: Failed, Error Type: RESP TIMEOUT
BSS Power Up async event was not received!

我已经按照以下顺序进行过一次完整的干净重试：

SPI Disconnect
RS232 Disconnect
Reset/SOP Set
使用 COM16 重新连接
下载 BSS 固件
下载 MSS 固件
SPI Connect
RF Power-up

结果仍然相同。

目前尚未加载雷达 Config 文件。故障发生在 RF Power-up 阶段，早于 Profile、Chirp 和 Frame 等参数配置阶段。

补充信息

同一块雷达板以前曾经在同一台电脑上，使用旧的本地 mmWave Studio 3.1.4.4 环境成功完成 RF Power-up。

但是，当前 mmWave Studio 3.1.4.4 安装包附带的 Release Notes 似乎只标明 xWR294x ES2.0 支持，而我的芯片是 ES1.0。

我已经比较了旧安装备份和当前安装中的以下文件：

xwr29xx_radarss_rprc.bin
awr2xxx_mmwave_full_mss_rprc.bin
mmWaveStudio.exe

这些文件的 SHA-256 哈希完全相同。

旧环境保存的 ar1gui.ini 使用 COM16、115200，而当前测试使用 COM16、921600。目前还没有使用 115200 完整重复测试。

希望确认的问题

mmWave Studio 3.1.4.4 是否正式支持 AWR2944 ES1.0？
当前 BSS 和 MSS 固件版本是否兼容 AWR2944 ES1.0？
TI 是否有专用于 AWR2944 ES1.0 的旧版 RadarSS/MSS RF Evaluation 固件包？
使用 921600 而不是 115200，是否可能造成 ar1.RfEnable() 响应或 BSS 异步事件超时？
AWR2944 ES1.0 在执行 ar1.RfEnable() 前，是否需要额外的命令、延时、复位或补丁？
TI 能否提供一套匹配 AWR2944 ES1.0 的 mmWave Studio、RadarLink、BSS 和 MSS 软件包？

感谢支持。

IWRL6432AOP: IWRL6322AOP / IWRL6322AOPEVM：申请更多功耗数据

zhaobin chai — Wed, 28 Oct 2026 10:21:02 GMT

Part Number: IWRL6432AOP

TI 团队，您好：

由于器件型号列表中没有 IWRL6322AOP 选项，我只能选择 IWRL6432AOP 来提交问题。我的问题实际涉及 IWRL6322AOP 及其评估板。

我已申请并获得 IWRL6322AOP 安全资源（Secure Resources）的访问权限，但现有功耗数据不足以满足我们的评估需求。

请问从哪里可以获得 IWRL6322AOP 器件和 IWRL6322AOPEVM 评估板的更多功耗数据，尤其是不同感知配置下的平均功耗数据？

谢谢！

IWR1843BOOST: IWR1843BOOST：IWR1843角度分辨率

hang zuo — Mon, 26 Oct 2026 07:47:28 GMT

Part Number: IWR1843BOOST
Other Parts Discussed in Thread: IWR1843

我通过别的帖子看到IWR1843角度分辨率在两发四收的情况下是可以模拟成八个天线，然后角度分辨率约为14.3度那么这个角度分辨率是指两个物体间只要间隔角度大于14.3度就可以被雷达识别为两个物体是吗？可以这样理解嘛？另外两发四收的天线最多可以监测到几个物体呢有什么要求嘛

AWR2944P: AWR2944P rfe overtime,stuck in Mailbox_waitWriteAckIntr

Mon, 26 Oct 2026 01:57:06 GMT

Part Number: AWR2944P

Hi,experts

We have found that one particular board hangs consistently in Mailbox_waitWriteAckIntr(). We tested 5 boards, and only this one exhibits the problem.

We then tried changing the IPC_NOTIFY_WAIT_CYCLES parameter in awr2x44p\source\drivers\ipc_notify\v1\soc\awr2x44p\ipc_notify_v1_cfg.c. The original value is 17. After changing it to 34 (17*2), the probability of the hang decreased, but it still hangs. After changing it to 9 (17/2), the probability of the hang increased.

This parameter is the default value from the SDK; we had not modified it before.

Could you please help us understand why a hang in the RF-side mailbox would occur on this particular board?

Thank you.

Regards,

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？