https://e2e.ti.com/administrators1/ultrasonic1/Welcome to the Ultrasonic Sensing section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "+New"en-USTelligent Community 13https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1681363/msp430-sdk-msp430fr6043evm-single-transducer-pulse-echo-setup-for-adblue-quality-density-measurement-in-uss-gui/6504560Thu, 08 Oct 2026 02:00:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d6548257-7212-42c3-9345-88dfeb2911feGary GaoHi Yusuf, Sorry for the late response due to the filter issue of the E2E, not sure if all the questions above still there on your side?https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1687169/afe58jd18evm-need-documentation-for-afe58jd18evm-signed-ndaMon, 05 Oct 2026 17:52:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:cb0dcb52-df05-4425-a7d3-b4c7708e88beTom BakerPart Number: AFE58JD18EVM I've been working with Michael Falekulo in Medical Imaging PME to get documentation for the AFE58JD18EVM. I'm working for SafeImaging. We got the signed NDA back to Michael, but he went of vacation through thr 9th. I need the documentation ASAP. I've attached the NDA, please help. Thanks, Tom Baker Signed document.pdfAFE58JD18EVMhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1687071/evm430-fr6043-selecting-the-appropriate-water-flow-rate-measurement-application-for-evm430-fr6043Mon, 05 Oct 2026 11:07:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:acd874eb-8b11-40ba-bb52-d03a0d12a2b2Nik StauntonPart Number: EVM430-FR6043 Hello Please can you direct me to the water flow rate application download for EVM430-FR6043. Thank you.EVM430-FR6043Industrial Automationhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1683098/msp430fr6047-inconstant-measurement-period/6498293Wed, 30 Sep 2026 10:09:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f36415a0-0ba9-4f6e-9397-dda45e047df8Timon BurkardHi Peter 1. > our original demo code works fine with no issue but if you try to modify and enable the channel swapping which we remove it in the latest version, then the issue occur, is that correct? --> Yes > I think t he timer function "USS_waitForAppTimerElapse()" here is just to make sure that the UPS0 to UPS1 gap is implemented properly and commonly not required high measurement accuracy, I wonder why do you need it measure so accurately and does it affect badly to your application? --> Indeed, high accuracy usually not required. Still it is unexpected to see a jitter of +/- one 32 kHz cycle, in our opinion. Please could you try to reproduce? 2. > I would recommend please refer to them firstly to see if they could help you better understand it Thanks, I read it. We do understand how the RTC functionality works. Our question is only about the user manual specification, which I think is not answered in the linked E2E threads.https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1683098/msp430fr6047-inconstant-measurement-period/6497563Tue, 29 Sep 2026 20:08:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:09987aeb-1c26-4a10-a4b9-7d57a8fd37a4Peter JiangHi Timon, Thanks for the detailed testing information, sorry for the delay since there is a system issue that prevent us seeing this thread and I'm now on the holiday vacation. Regarding your questions: 1. For the periods measurement jitter, I think your position for putting this function " USS_waitForAppTimerElapse() " in the main loop should be fine, let me clarify a little bit and please correct me if I misunderstand it, our original demo code works fine with no issue but if you try to modify and enable the channel swapping which we remove it in the latest version, then the issue occur, is that correct? if so, the issue seems point to this old function effect and we can try to dig more about it, since I'm now on the holiday until October 8th and no board on hand to reproduce it, kindly need your more patience to wait for the testing result on my side with this old function. In addition, I think t he timer function "USS_waitForAppTimerElapse()" here is just to make sure that the UPS0 to UPS1 gap is implemented properly and commonly not required high measurement accuracy, I wonder why do you need it measure so accurately and does it affect badly to your application? 2. For the RTC, I found we already have some discussions in the E2E threads about it, not sure if you have taken a look, if not, I would recommend please refer to them firstly to see if they could help you better understand it. MSP430F6779: Questions about the RTCRDY time MSP430FR5994: RTC interrupt vector priority Thanks Best Regards, Peterhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1683098/msp430fr6047-inconstant-measurement-periodThu, 17 Sep 2026 07:58:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:65b2dec0-f2c1-4162-9f1b-0bcad8c83914Timon BurkardPart Number: MSP430FR6047 We have two questions about the MSP430FR6047: 1.) Measurement Period The TI MSP430UltrasonicLibrary (version 02_40_00_00) contains a function to implement the measurement period: USS_waitForAppTimerElapse() Acc. to your example: int main() { // Init // ... gUssSWConfig.systemConfig->measurementPeriod = 32768; // 1 s USS_configAppTimerPeriod(&gUssSWConfig, gUssSWConfig.systemConfig->measurementPeriod); while (1) { // Perform data acquisition... // Perform signal processing... // ... USS_waitForAppTimerElapse(&gUssSWConfig,USS_low_power_mode_option_low_power_mode_3); } } This is how we use it too. This should produce a constant measurement period of 1 s. However, we noticed that the period of the measurement cycle is not constant. The periods vary by +/- 30 us, which corresponds to one 32.768 kHz clock cycle. To confirm, we also tried to reproduce it with the example from TI in the library. We added GPIO toggle: And measured with PicoScope. The default version of the example shows: --> constant measurement periods ( Removed USS_swapCaptureChannels API So, as it was advised by TI in the past we re-added this function from version 02_20_00_18: Like this, the example is compilable again. Then, again we measured with PicoScope: --> inconstant measurement periods (+/- 30 us) Could you please check our setup? Maybe we are missing something? How can we change the process to ensure USS_waitForAppTimerElapse() function produces constant measurement periods? -- Or one just needs to accept a jitter of +/- 32.768 kHz clock cycle? 2.) RTC keep-out window The MSP430FR6xx user guide specifies for RTC_C: 128/32768 s = 4 ms So we would expect the RTC to not be blocked for longer than 4 ms (i.e., time for which the CPU is not allowed to read out the RTC registers). However, we measured the time to be up to 8 ms with PicoScope. So maybe we misunderstood the user guide specification and it is meant as follows? "(...) centered approximately +/- 128/32768 s around the update transition, i.e., total duration of 256/32768 s. (...)" Thank you very much!MSP430F6779MSP430FR5994MSP430FR6047https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1682826/ads52j90evm-high-speed-data-converter-pro-not-support-ads52j90evmWed, 16 Sep 2026 14:45:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a638badd-f2b6-47c6-a58d-d93da7bf7521Mario DPart Number: ADS52J90EVM Other Parts Discussed in Thread: TSW14J50EVM , ADS52J90 Hello, I am working with the ADS52J90EVM connected to the TSW14J50EVM capture card. I noticed that the latest version of High Speed Data Converter Pro (v5.31) no longer includes support or configuration files for the ADS52J90 in the device drop-down menu. Could you please provide a download link for an older version of HSDC Pro that supports the ADS52J90 ? Thank you in advance for your supportTSW14J50EVMADS52J90EVMADS52J90Test & Measurementhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1681840/msp430fr6047-msp430fr6047-schematic-review-ultrasonic-flow-meter-with-8-mux-lcd-and-rs485-modbusMon, 14 Sep 2026 07:22:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:743bb120-4fcd-474c-a822-e595033784f7Phuong DangPart Number: MSP430FR6047 Hi TI Support Team, Could you please help review the schematic for our new custom Ultrasonic Flow Meter design based on the MSP430FR6047? Please let me know if you need any additional information or design files. Thank you for your support!MSP430FR6047Test & Measurementhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1681363/msp430-sdk-msp430fr6043evm-single-transducer-pulse-echo-setup-for-adblue-quality-density-measurement-in-uss-guiFri, 11 Sep 2026 04:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:6075353d-d3df-4d21-883d-314e36913822yusuf seçilmişPart Number: MSP430-SDK Other Parts Discussed in Thread: MSP430FR6043 Hi TI E2E Team, I am working with the MSP430FR6043 Ultrasonic Sensing Evaluation Module (EVM) and the Ultrasonic Sensing Design Center (USS) GUI . My goal is to measure the concentration / quality of AdBlue liquid using a single ultrasonic transducer operating in a pulse-echo mode (transmit signal -> bounce off a fixed reflector -> receive echo on the same transducer). Since standard flow-metering examples rely on a dual-transducer bi-directional setup (upstream/downstream), I would like to get step-by-step guidance on setting up a single-transducer pulse-echo configuration: 1. Hardware Connections: Which specific channel header/pins should I use for connecting a single transducer for both pulse transmission and echo reception? Are any jumper configurations required on the MSP430FR6043EVM? 2. USS GUI Configuration: How should I configure the System Configuration in the USS Design Center GUI for single-transducer operation (e.g., channel selection, gain settings, and capture window timing for liquid reflection)? 3. Software / USS Library Configuration: How can I adapt the demo firmware (or USS Library parameters) in Code Composer Studio (CCS) to execute a single-ended pulse-echo capture sequence without expecting a second channel? Thank you for your guidance and recommendations. Best regards,MSP430-SDKmsp430fr6043https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1677932/tx08devm-tx08devm-question/6470148Wed, 02 Sep 2026 03:27:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:91b089bc-b9d0-49f5-9f97-e8a0c5de2ae0yin luThe explanation above is clear. However, the only document currently available on your website is the TX08D_Datasheet_Short_sbasaw7a.pdf. Are there any other more detailed technical documents (such as a full datasheet) for the TX08D chip? Additionally, is the schematic for the TX08DEVM available? We would like to obtain these resources to facilitate our upcoming custom system PCB design.https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1677932/tx08devm-tx08devm-question/6468000Mon, 31 Aug 2026 17:27:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d81957d1-bf0f-44fc-a1c2-e81656052a8eRoshan DivakarHi, no we don't have any reference design for connecting TX08D to a actual transducer. Ideally, our customers build their own system PCB which has the relevent HV Muxes and switches requried to map the TX08D channels to the transducer elements. As such, there is no damping or protection network requried. Regarding matching, the circuit will be highly dependent on the transducer load, and we don't have much exertise in the tuning circuits for the transducer. The TX08D has receive outputs which are the outputs of T/R Switch that can be connected to the AFE inputs.https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1677932/tx08devm-tx08devm-questionMon, 31 Aug 2026 10:25:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f1de18f7-ba9d-42a1-bd25-9970f1ec954cyin luPart Number: TX08DEVM Other Parts Discussed in Thread: TX08D , Does TI provide a recommended reference design or interface/adapter board for connecting TX08D to an actual piezoelectric probe? For real transducer evaluation, should we design a separate TX08D board based on the EVM schematic rather than modifying the TX08DEVM? What output damping/matching/protection network does TI recommend between TX08D and a 4 MHz piezoelectric array element? How should the TX08D T/R switch interface with the receive AFE in a pulse-echo system?Also, please share the detailed specs of the main chip and the schematics for the TX08DEVM board so we can use them for future application development."TX08DTX08DEVMTest & Measurementhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1676995/tx08devm-tx08devm-troubleshootingThu, 27 Aug 2026 01:34:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9ff13c61-4f23-4622-b772-bcf2b3d1b8adyin luPart Number: TX08DEVM Other Parts Discussed in Thread: TX08D , We are currently debugging the TX08D using the TX08DEVM. The EVM powers up normally, the USB/GUI connection works correctly, and the initial diagnostics pass. However, when following the TX08DEVM User Guide (SBAU469) to generate both the built-in LIN waveform and a custom waveform, there is no LIN output, and the following errors are reported: TX_START_ERR LONG_TRAN_ERR_LIN We have attached a short document including our test procedure, GUI settings, and oscilloscope waveforms. Could you please help us check whether there is any issue with the configuration, synchronization/trigger settings, or operating sequence? As we will continue developing with the TX08D, if possible, we would also appreciate being connected with a TI China technical support engineer/FAE. It would be very helpful if we could add each other on WeChat and create a small technical discussion group with our engineers for further debugging. Thank you very much for your support. Waveform Troubleshooting Report.pdfTX08DTX08DEVMTest & Measurementhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1668076/msp430fr6045-specifications-for-ultrasonic-sensors-used-in-ultrasonic-water-meters-based-on-the-msp430fr6045/6451822Mon, 17 Aug 2026 00:54:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:24d4a131-4961-4769-b684-87c68e2346ceKenichi MaruyamaHello, Peter Jiang, Thank you for your reply. I’ll use the information you provided to help me select a sensor.https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1672447/tx08devm-linamp-not-outputting-signal-on-tx/6447819Wed, 12 Aug 2026 04:48:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f7499282-c5cd-4a4a-9cda-2aa9094f306bRoshan DivakarHello, that is expected as the latency to fetch the data from memory in Lin-Amp mode is longer than that of pulser. The latency details are mentioned in the datasheet which you can refer to.https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1668076/msp430fr6045-specifications-for-ultrasonic-sensors-used-in-ultrasonic-water-meters-based-on-the-msp430fr6045/6447783Wed, 12 Aug 2026 03:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:79e4305b-92b9-41f7-870a-748e3d101bb1Peter JiangHi Kenichi, Sorry for the late reply since it might be some system issues that cause us missing this thread. Based on the mass‑production experience together with our customers, we have included the transducer recommendations in the document FAQ on ultrasonic sensing technology (as shown below), Audiowell and Jiakang transducers are common, recommended choices and typically pair well with MSP430FR604x devices , the links in the document may not work but you can use the links provided below to view the recommended models. These models might be a bit outdated and of course, other new transducers from these recommended manufacturers with similar specifications can also be used. JIAKANG 1MHz PSC1.0M020160H2AD0-B0 Audiowell Model：HS0003 Thanks Best Regards, Peterhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1672447/tx08devm-linamp-not-outputting-signal-on-tx/6447470Tue, 11 Aug 2026 21:00:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:bcd7a684-0721-4576-af6e-2abb3912b5cdAndrew OuelletteIt appears the delay in the Linamp pulse relative to the trigger signal is significantly longer than in the regular HV pulsar.https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1672447/tx08devm-linamp-not-outputting-signal-on-txTue, 11 Aug 2026 19:08:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:e764921e-ce99-4817-ab3b-a8bd2b9d98c1Andrew OuellettePart Number: TX08DEVM I've got the board setup as per the manual and can see an output on the HV Pulsar_Pat but nothing seems to be working in terms of the Lin_Amp_Pat section of the demo code. Not sure if some enable box is missing somewhere along the setup process but I've tried most of the settings and have had no luck. All board diagnostics seem to be working.Industrial AutomationTX08DEVMhttps://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1671629/msp430fr6043-design-review-ultrasonic-water-meter-using-msp430fr6043Fri, 07 Aug 2026 21:55:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c3471f70-66ec-4ca1-8b61-0cacc19bb117Ezra MohammedPart Number: MSP430FR6043 Hi everyone, We are currently working on a Smart Ultrasonic Water Meter using the TI MSP430FR6043 controller. Previously, we designed a two-layer board, but it barely functioned due to excessive noise. We have since redesigned both the PCB and the schematics. I would appreciate it if you could review our work and provide your feedback. Smart Ultrasonic Water meter.pdf TOP Layer SIgnal 2. Layer 2: GND 3: Layer 3: PWR + GND Buttom Layer : GND i splt the USS_GND and the GND and connect them by Net Tie Thank you! Ezra M.msp430fr6043Wearables (non-medical)https://e2e.ti.com/administrators1/ultrasonic1/f/ultrasonic-sensing-forum/1670566/tmux9832-tmux9832-datasheet-requestWed, 05 Aug 2026 08:21:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0a51c6e9-fb8b-452f-a73c-682e797ed196Joshua M'CawPart Number: TMUX9832 Hi there, I am looking to get access to the datasheet for the TMUX9832 chip. I submitted a request through the secure resources portal over a week ago, but have not heard anything back. Can anyone from TI help with this request?TMUX9832