https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1692644/launchxl-cc1352r1-launchxl-cc1352r1-completely-stopped-responding-after-uniflash-9-7-0-5873-test-connectionMon, 26 Oct 2026 11:28:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8d3a5bac-8385-40c9-8a89-48759d3526ddJiahui GaoPart Number: LAUNCHXL-CC1352R1 Other Parts Discussed in Thread: UNIFLASH Hi team, I need technical assistance with a LAUNCHXL-CC1352R1 development board. The board became completely unresponsive immediately after I selected Test Connection in UniFlash. Board and software details Board: LAUNCHXL-CC1352R1 Software: UniFlash 9.7.0.5873 Operating system: Windows Debugger: On-board XDS110 What happened When I first connected the board to my computer, the board&#39;s LED illuminated. I opened UniFlash to check the connection and configuration. I had not intentionally flashed an application; I was checking the connection. After I clicked Test Connection , UniFlash reported the following error: SC_ERR_XDS110_OPEN (-260) The error message said: “An error occurred while hard opening the controller.” Immediately afterward, the board&#39;s LEDs stopped illuminating and the board disappeared from Windows Device Manager. I tested multiple USB cables and computers, but the board remains undetected. Using a multimeter, I measured 5 V and 3.3 V at the board&#39;s header pins. However, the board still shows no LEDs and is not detected over USB. I ran the XDS110 detection utility: xdsdfu.exe -e The output was: Scanning USB buses for supported XDS110 devices... Found 0 devices. I have not attempted to force the debugger into firmware-update mode, erase firmware, or perform hardware-level recovery.building automationUniFlashLAUNCHXL-CC1352R1https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689131/cc1352p-cc1352p-high-packet-error-rate-at-868-mhz-significantly-better-at-866-mhz-in-smartrf-studio/6520938Mon, 26 Oct 2026 11:25:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:67eca63f-d93e-44cb-95ca-5130e3e97a05RGWHi, This could be the B5 4G LTE or N5 5G 850 MHz bands that are affecting your link. The downlink appears to the the worst case since it is from 869-894 MHz. The uplink frequencies are farther away 824-849 MHz. Recommend to test with LTE SAW filters to see if this improves your link. These LTE SAW filters are optimized with a small bandwidth of just 2 MHz operating from 868-870 MHz. Recommend to test with Qualcomm B39871B2636P810, 1411 size or Murata SAFRN869MAAAC0A, 1109 size. There are SAW evaluation modules available so these can be connected to the Launchpad for immediate field testing.https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689131/cc1352p-cc1352p-high-packet-error-rate-at-868-mhz-significantly-better-at-866-mhz-in-smartrf-studio/6520665Mon, 26 Oct 2026 06:51:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:fb8da654-5f26-4fb3-920d-085fda94ca06ethan welberI&#39;m not sure, but since it can affect both indoors and outdoors, I guess it might be the cellular frequency band of China Telecom.Today, I conducted another 868MHz RF test in the underground parking lot, and I noticed a significant improvement in distance and packet loss rate. So, my initial judgment is that this is probably caused by environmental interference. Even though we saw a noise signal at 869 MHz on the spectrum analyzer, due to the 2.2 MHz bandwidth I used, it might still have been affected by interference.https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689803/cc1354p10-gang-programmer-required/6520288Sat, 24 Oct 2026 07:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8d07765b-e7ec-4552-b81c-9ff2ce1b28c7Somaraju PitchikaYes you are right, but we need which gang programmer can be used for CC1354P106T0RGZRhttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689803/cc1354p10-gang-programmer-required/6520287Sat, 24 Oct 2026 07:55:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d9d63baf-4ac6-46ee-862f-18e74d63515bSomaraju PitchikaYes youhttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689131/cc1352p-cc1352p-high-packet-error-rate-at-868-mhz-significantly-better-at-866-mhz-in-smartrf-studio/6519553Fri, 23 Oct 2026 09:37:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:322f767c-ae79-4ef3-888a-bec87541ba8cRGWBoth show approx -96 dBm noise floor at 866 MHz and 868 MHz. However, it is interesting to see that you have a signal at 869.0 MHz. Do you know what is transmitting at 869.0 MHz in your environment ? The signal level is not strong enough to affect the 868 MHz blocking when at -70 dBm but if this was much stronger this could have an effect more at 868 MHz than 866 MHz.https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691910/cc1311p3-cc1311p3-is-20-dbm-tx-supported-at-433-mhz-or-from-400-mhz-to-500-mhz/6518801Thu, 22 Oct 2026 17:02:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:903236a6-15ca-4bf1-a52f-24080ad32756Alex FagerHello Rudhishvaran A, I would recommend using SmartRF Studio 7 here as you can directly check the power output of the particular device per PHY. For the CC1311P3 for the PHYs between 431 MHz - 527 MHz max out at +13 dBm, not +20. Only the Sub-1 GHz PHYs in the 779 MHz - 930 MHz (for the CC1311P3) support the high output power of +20 dBm. [quote userid=&quot;721643&quot; url=&quot;~/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691910/cc1311p3-cc1311p3-is-20-dbm-tx-supported-at-433-mhz-or-from-400-mhz-to-500-mhz&quot;]If not, please recommend a TI device supporting +20 dBm between 400 MHz and 500 MHz.[/quote] +20 dBm is not permitted anywhere in the 430–510 MHz band for unlicensed wireless devices under any major regulatory framework. The closest any region gets is China&#39;s 19.15 dBm EIRP ceiling in the 470–510 MHz band. Thanks, Alex Fhttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691431/cc1407p-smart-rf-8-fully-configurable-custom-phy/6518465Thu, 22 Oct 2026 12:44:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b8ed91d4-0069-407b-8fd4-10795364adb6SiriHi Timo If the settings are not supported in Studio, you will need help to generate the settings you want. We have been contacted regarding your case, so I will close this ticket. BR SIrihttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691910/cc1311p3-cc1311p3-is-20-dbm-tx-supported-at-433-mhz-or-from-400-mhz-to-500-mhzThu, 22 Oct 2026 12:25:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7bdf4264-43cf-4851-8c6a-37002f69e6d0Rudhishvaran APart Number: CC1311P3 Hello, Can the CC1311P3 provide +20 dBm conducted TX power at 433.92 MHz or within 400–500 MHz? The datasheet specifies approximately +13 dBm at 433.92 MHz, while +20 dBm is specified at 915 MHz. Can the TX_20DBM_P/N high-power PA outputs be used at 433.92 MHz? If not, please recommend a TI device supporting +20 dBm between 400 MHz and 500 MHz. Thank you.CC1311P3Wireless Infrastructurehttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1690259/cc1407p-trx-test-timeout-with-fw-2-30-0-44-and-security-version-error-during-update-to-2-41-01-10-device-turned-into-unknown/6518248Thu, 22 Oct 2026 08:31:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:84731b5b-c827-414f-9dc5-038ad300054dArthur R☑️Hi Mike, I turns out your devices are of a previous silicon revision. Acquiring the newest silicon revision will solve the issue. Regards, Arthurhttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691431/cc1407p-smart-rf-8-fully-configurable-custom-phy/6518227Thu, 22 Oct 2026 08:07:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7f7fd428-2605-4a99-9af0-31158a6c94e8Timo FriedrichsHi Siri, I&#39;ve already tried that, too. The Modulation drop down has no 2-FSK. You can set RX filter bandwidth to 100kHz but will get a failure message (Value is too high (minimum supported ...) Best regards Timohttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691431/cc1407p-smart-rf-8-fully-configurable-custom-phy/6518201Thu, 22 Oct 2026 07:42:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ba7ee74c-fbed-4d96-b1d7-a7853f3dc71fSiriYou need to select the general purpose gfsk PHY to be able to modify the parameters: BR Sirihttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691431/cc1407p-smart-rf-8-fully-configurable-custom-phy/6518025Thu, 22 Oct 2026 05:03:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:106160b6-f8a6-4acf-ac9f-48325ada9aecTimo FriedrichsHi Alex, for example, if I use Proprietary PHY 10 kbps, 20 kHz dev, 2-GFSK and create a custom PHY to modify. The PHY properties RF Channel and Packet data are grayed out and can not be set. Best regards Timohttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689131/cc1352p-cc1352p-high-packet-error-rate-at-868-mhz-significantly-better-at-866-mhz-in-smartrf-studio/6517922Thu, 22 Oct 2026 02:07:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:bb40ed27-98b6-426c-b03a-0145e1e052c0ethan welberThank you very much for your help. I have modified the parameters and re-performed the test.https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689131/cc1352p-cc1352p-high-packet-error-rate-at-868-mhz-significantly-better-at-866-mhz-in-smartrf-studio/6517921Thu, 22 Oct 2026 02:04:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8dd9aa62-5bfd-4d04-86ce-9fa499fc2ff9ethan welberHi, I have set Atten to 0, Ref to -20, and RBW to 10 kHz to ensure that signals with lower noise can be observed. Here are my measurement results：https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691431/cc1407p-smart-rf-8-fully-configurable-custom-phy/6517653Wed, 21 Oct 2026 19:41:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4ed00426-1b9d-40a7-a561-b2e7cd259646Alex FagerHello Timo, To better understand the constraints you are encountering, could you clarify which specific RF parameters or fields in the SmartRF 8 interface are preventing you from entering the values for these 2-FSK profiles? Additionally, are you receiving a specific error message or a validation warning when you attempt to save these custom PHY configurations? Thanks, Alex Fhttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689131/cc1352p-cc1352p-high-packet-error-rate-at-868-mhz-significantly-better-at-866-mhz-in-smartrf-studio/6517602Wed, 21 Oct 2026 18:46:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:485d911b-78ff-4cb5-a174-03cefc51a284RGWAgree with TheGhostOf that you are not measuring the environment noise floor here.https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689131/cc1352p-cc1352p-high-packet-error-rate-at-868-mhz-significantly-better-at-866-mhz-in-smartrf-studio/6517452Wed, 21 Oct 2026 16:49:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:208cd3b2-7ae9-4a3d-9786-69ce92dada30TheGhostOfYou are not seeing the environment noise, you are seeing the spectrum noise. Att has to be set to 0 dB or lower, RBW low. Remember the sensitivity will be around -95 dBm or so and hence you need to get the noise floor in the spectrum lower than that.https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1691431/cc1407p-smart-rf-8-fully-configurable-custom-phyWed, 21 Oct 2026 08:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:cab2ef01-5c23-472f-abba-b72f7e90fa28Timo FriedrichsPart Number: CC1407P Other Parts Discussed in Thread: LP-XDS110ET , Hi, at the moment I am evaluating CC1407P/LP-XDS110ET (SmartRF 8 v1.4.1) and I would like to use two custom files with following main rf parameter (eQ-3 HmIP system): --------------------------------------------- Frequency: 868.3MHz Modulation: 2-FSK Deviation 19kHz at 10kbit/s data rate, 100kHz RX bandwidth --------------------------------------------- Frequency: 869.525MHz Modulation: 2-FSK Deviation 19kHz at 10kbit/s data rate, 100kHz RX bandwidth and Deviation 25kHz at 50kbit/s data rate, 155kHz RX bandwidth Unfortunately, I can&#39;t configure some necessary rf parameter in a copy of a Phy. Best regards TimoLP-XDS110ETCC1407Phttps://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1689131/cc1352p-cc1352p-high-packet-error-rate-at-868-mhz-significantly-better-at-866-mhz-in-smartrf-studio/6516809Wed, 21 Oct 2026 07:29:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4d2bad4a-bc9a-4c9a-bb70-e411e9c1f9dfethan welber1. I conducted conductivity tests on the SMA ports with 10dBm and 1dBm power levels respectively. Upon observation, I didn&#39;t notice any significant differences.Below is the comparison of the continuous transmission results at 0dBm. 2. The following is the noise situation at 868MHz/866MHz after connecting the antenna on the spectrum. There is no significant difference from what I expected.