数据转换器论坛 - 最近的话题

AFE5818EVM: Software installation failed

Xinlong Zhao — Tue, 02 Jun 2026 06:28:20 GMT

Part Number: AFE5818EVM

A very bad thing is that I purchased AFE5818EVM without TSW1400EVM. Is there any solution?

Even worse, when I tried to perform CW testing on AFE5818EVM through HMC-DAQ GUI, the software couldn't run and there was a graphical error. Can anyone tell me how to handle it? I am using Win11 64bit

RE: AFE5818EVM: Software installation failed

Links — Thu, 04 Jun 2026 09:30:19 GMT

在使用 AFE5818EVM 进行评估时，开发过程需要 TSW1400EVM（已停产）。除非您已经拥有 TSW1400EVM，否则请勿购买 AFE5818EVM。

关于报错，请查看下面的FAQ

(99+)ADS52J90：无法运行HMC-DAQ-GUI：启动Splash Screen.vi - 数据转换器论坛 - 数据转换器 - TI 端对点支持论坛，出现错误1003

ADS1299EEGFE-PDK: ADS1299的START的引脚设置

Yi Peng — Thu, 04 Jun 2026 08:11:08 GMT

Part Number: ADS1299EEGFE-PDK

ADS1299的START的引脚能悬空吗，为什么我的采样输出全为0并且用内部检测信号测试时也全为0.

RE: ADS1299EEGFE-PDK: ADS1299的START的引脚设置

Links — Thu, 04 Jun 2026 08:59:48 GMT

不建议悬空，建议START 用 10 kΩ 上拉到 DVDD，然后用示波器看 DRDY是否开始周期性跳变

RE: ADS1299EEGFE-PDK: ADS1299的START的引脚设置

FRANK1 — Thu, 04 Jun 2026 08:14:07 GMT

感谢您对TI产品的关注！
关于你的咨询，我们正在确认您的问题，感谢您的耐心等待。

RE: ADC12DJ3200: ADC12DJ3200 subclass1 建链问题

Daniel — Thu, 04 Jun 2026 00:09:49 GMT

您好

根据您的描述优先考虑sysref_recv_en = 1 且解决 SYNC 反复同步的问题，而不是通过关闭 sysref_recv_en 来绕过问题。

其次根据datasheet如图说明，建议考虑SYSREF 校准问题

7.3.6.3.2 Automatic SYSREF Calibration

参考datasheet这节对于操作说明进行调试。

ADC12DJ3200: ADC12DJ3200 subclass1 建链问题

flye du — Wed, 03 Jun 2026 15:14:06 GMT

Part Number: ADC12DJ3200

如图所示，如果不运行 8'd116 这条关闭 adc 的sysref_recv_en 命令，fpga 204b rx sync 反复拉高，降低。运行8'd116的话，在测确定性延迟的时候，每次上电之后，确定性延迟测得周期数都不一样。（确定性延迟测试现在用的方法是接收链路上，外部同时提供一个脉冲信号给ADC和一个FPGA管脚，FPGA内部通过管脚上的脉冲使用ILA抓取信号，数时钟看看多久ADC收到信号）。

RE: ADC12DJ3200: ADC12DJ3200 subclass1 建链问题

Eirwen — Wed, 03 Jun 2026 23:01:13 GMT

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

AFE4400: 修改发光二极管电流的问题

SolaYuki — Fri, 29 May 2026 06:38:03 GMT

Part Number: AFE4400

我在开发AFE4400的相关程序中遇到了修改电流失败的问题，我想咨询一下如果在采集过程中需要修改电流的话，一个标准的流程是怎么样的，需要重新写入所有寄存器吗？

RE: AFE4400: 修改发光二极管电流的问题

Eirwen — Tue, 02 Jun 2026 23:59:07 GMT

不需要重新写入所有寄存器，需要重新写修改电流相关的LEDCNTRL等寄存器。

更多AFE4400相关问题，可以参考下面链接以及FAQ：

AFE4400 for Beginners - Data converters forum - Data converters - TI E2E support forums

AFE4400 / AFE4490 / AFE4403 / AFE4404 FAQs - Data converters forum - Data converters - TI E2E support forums

RE: AFE5818EVM: Software installation failed

Xinlong Zhao — Tue, 02 Jun 2026 08:17:23 GMT

Thank you very much for your reply. I have checked this link and in fact, I have switched to different computers, but none of them are functioning properly.
Additionally, I have no issues with the key options mentioned in the link, but they still cannot be executed. I have attached the relevant results below and look forward to your help.

RE: AFE5818EVM: Software installation failed

Links — Tue, 02 Jun 2026 07:16:00 GMT

Hi，

Please check the following link

(+) AFE5818: HMC-DAQ-GUI ERROR 1003 - Data converters forum - Data converters - TI E2E support forums

RE: ADS1285EVM-PDK: What are the board dimensions of the ADS1285EVM-PDK?

FRANK1 — Tue, 02 Jun 2026 07:08:33 GMT

Thank you for contacting TI China E2E forum and choosing our products as part of your solution.
Regarding your query, the dimensions of ADS1285EVM-PDK board is L 96.52mm * W 66.04mm, you can refer to the BOM in Page 29 to estimate the height.

ADS1285EVM-PDK User's Guide (Rev. B)

ADS1285EVM-PDK: What are the board dimensions of the ADS1285EVM-PDK?

tktk arm — Tue, 02 Jun 2026 05:52:40 GMT

Part Number: ADS1285EVM-PDK

Could you please tell me the dimensions (length, width, and height) of the ADS1285EVM-PDK board? I did not find this information in the datasheet.

AFE5818EVM: Software installation failed

Xinlong Zhao — Tue, 02 Jun 2026 06:22:16 GMT

Part Number: AFE5818EVM

A very bad thing is that I purchased AFE5818EVM without TSW1400EVM. Is there any solution?

RE: AFE5818EVM: Software installation failed

Alice — Tue, 02 Jun 2026 06:25:48 GMT

Hello,
We have received your post and the investigation will take some time.
Thanks for your patience.

RE: AMC1305M05: AMC1305M05在隔离端的供电方案问题

Alice — Tue, 02 Jun 2026 03:08:50 GMT

您好，

芯片的AVDD（AGND），无论使用隔离电源或者参考设计中的二极管稳压或LDO稳压都可，

最根本的原则是，AINP AINN的差分输入电压和共模输入电压要满足芯片的需求。

AMC1305M05: AMC1305M05在隔离端的供电方案问题

cooper kuo — Tue, 19 May 2026 02:30:48 GMT

Part Number: AMC1305M05

在下图在AMC1305的手册中，推荐在AVDD使用隔离供电方案（floating power supply）；这里只给出了一个低成本方案，即使用Zener diode做稳压，把AGND与AINN（the end of the shunt resistor）接在了一起；

我想确认一下：如果使用独立的隔离电源方案给AMC1305的AVDD供电，因为采样电阻在相线上，接AMC1305的AINN//AINP, 这时候还需要把隔离电源的AGND与AINN接在一起吗？

感谢~

ADC12QJ1600EVM: Original engineering files for ADC12QJ1600EVM development board are required

jemmy fu — Fri, 22 May 2026 09:51:33 GMT

Part Number: ADC12QJ1600EVM

I need the schematic/PCB engineering source files for the ADC12QJ1600EVM. The official website only provides the schematic PDF and Gerber files. I need to perform secondary development based on TI's provided development board documentation, modify some functions, and create a test board

RE: ADC12QJ1600EVM: Original engineering files for ADC12QJ1600EVM development board are required

Lydia — Tue, 02 Jun 2026 02:12:36 GMT

We only have the following resources,

www.ti.com/.../SBAC264

RE: ADS1248: 不能正确获取ADS1248的转换结果。

Eirwen — Mon, 01 Jun 2026 05:49:37 GMT

下面评估板用户手册里面有回路图BOM和LAYOUT，您可以对照检查下：

www.ti.com.cn/.../zhcu954a.pdf

ADS1248: 不能正确获取ADS1248的转换结果。

chao zhai — Thu, 28 May 2026 07:01:48 GMT

Part Number: ADS1248

此电路设计是否有问题，目前调试实际电路时不能正常读取转换结果。测量了±2.5V、3.3V和基准电压±2.048V都正常。

MCU可以通过SPI读写ADS1248的寄存器，但是不能控制转换和读取结果。

RE: AFE4400: 修改发光二极管电流的问题

Eirwen — Fri, 29 May 2026 06:46:45 GMT

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

DDC112: 连续模式下Dvalid信号存在不触发的情况

Hale_liu Liu — Wed, 27 May 2026 02:21:19 GMT

Part Number: DDC112

始终信号10Mhz，CONV信号800hz，连续模式下Dvalid信号存在不触发的情况，且不触发的前一帧的Dvalid提前出现下降沿，返回数据明显偏小，CLK与CONV信号同步<10ns。目前无法查明原因，请帮我看下可能是什么原因。

1s采集内出现了7次。

RE: DDC112: 连续模式下Dvalid信号存在不触发的情况

Vivian Gao — Fri, 29 May 2026 00:48:52 GMT

用示波器精确测量CONV相对CLK上升沿的抖动（jitter）

确保CONV由CLK严格派生，而非独立时钟源

CONV暂时降低到400Hz或200Hz,如果故障消失,大概率是时序裕量不足，如果可能，添加硬件同步器或增加时序裕量

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