https://e2echina.ti.com/support/microcontrollers/c2000/zh-CNTelligent Community 13https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091917/tms320f280049c-sfra/3930100Fri, 28 Aug 2026 06:10:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:b0732e2a-b5da-4772-9626-c4e7cc6a8047Alice您好， 好似板子与XDS110是只有调试用(debug connection)的接口连接了，并没有连出串口(Auxiliary connection)。 https://www.ti.com.cn/lit/ug/sprui94/sprui94.pdf “2.4 Auxiliary Debug Interface” 和“4.2 Auxiliary Connection Breakout Board” LAUNCHXL-F280049C的电路图在c2000ware的安装目录下。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091917/tms320f280049c-sfraFri, 28 Aug 2026 06:06:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:087435f9-2083-46da-b836-566c65fec14fJohn PanPart Number: TMS320F280049C Other Parts Discussed in Thread: SFRA , LAUNCHXL-F280049C , C2000WARE 在SFRA GUI界面上进行连接时， 如果是TI的开发板，可以连接成功 如果是我们自己的板子，连接不上 请问是什么原因，是不是TI开发板上有什么特殊的电路，把SFRA用的串口转接到USB接口上？而我们的板子上缺少这个特殊的电路？TMS320F280049CSFRAC2000WARELAUNCHXL-F280049Chttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091914/tms320f280049c-sfra/3930090Fri, 28 Aug 2026 04:13:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:4255c740-27d0-47cf-aa3a-3f98916bf415Vivian Gao感谢您关注TI产品。我们正在核实您的问题，请耐心等待我们的回复。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091914/tms320f280049c-sfraFri, 28 Aug 2026 04:08:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:4ba03c3f-4edc-45c5-a57b-bb361f0d434fJohn PanPart Number: TMS320F280049C Other Parts Discussed in Thread: SFRA 如下图，SFRA用的串口是GPIO28和GPIO29，我可以修改为用别的串口吗，比如：GPIO25和GPIO8TMS320F280049CSFRAhttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091383/launchxl-f280039c-launchxl-f280039c-onboard-xds110-debugger-not-detected/3928270Wed, 26 Aug 2026 05:13:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:cff60029-defe-4e17-b7c1-cfdac3db19b0Alice您好， 电路板质量问题，建议您请按照以下方式联系客户支持部门，会有客服为您提供帮助。 www.ti.com/.../customer-support.htmlhttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091383/launchxl-f280039c-launchxl-f280039c-onboard-xds110-debugger-not-detected/3927999Wed, 26 Aug 2026 00:56:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:096113d2-0be9-4ca7-b729-146b93425d89Alice您好， 已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091383/launchxl-f280039c-launchxl-f280039c-onboard-xds110-debugger-not-detectedWed, 26 Aug 2026 00:54:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:96a95d6d-ed9d-4db2-9dd9-e92484076f3b思宇 賴Part Number: LAUNCHXL-F280039C We purchased ten LAUNCHXL-F280039C boards, and six of them have an issue with the onboard XDS110 debugger. When any of these six boards are connected to the PC via USB, the XDS110 is not detected by Windows Device Manager at all. In contrast, the other four boards are detected normally using the same PC, USB cable, and USB port. For the working boards, the XDS110 Class Application/User UART and XDS110 Class Auxiliary Data Port appear immediately in Device Manager. All six affected boards were being used for the first time when this issue occurred. We tested them under the same conditions as the four working boards, but none of them were detected by the PC. Has this issue been reported or encountered with the LAUNCHXL-F280039C before? Could you please advise whether there are any troubleshooting procedures or possible solutions we can try to recover the onboard XDS110 debugger? If the issue cannot be resolved through troubleshooting, could you also help confirm whether this is likely a hardware failure of the onboard XDS110? I have attached photos showing the Device Manager results for comparison between a working board and an affected board. Thank you for your assistance.电力输送LAUNCHXL-F280039Chttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1089660/launchxl-f280049c-i2c_ex4_eeprom_polling-run/3927234Tue, 25 Aug 2026 08:27:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:77a1b03b-4ea3-4434-87d1-64f80238bcc3Linksi2c_ex4_eeprom_polling 例程需要连接外部I²C EEPROM，LAUNCHXL-F280049C板载没有对应EEPROM。 请检查SDA/SCL接线、上拉电阻、共地及EEPROM的7位地址https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091107/c2000-cgt-debug/3927227Tue, 25 Aug 2026 07:55:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e95d5d11-9398-4e5c-bfce-548f028791c5Alice您好， 我认为是因为工程文件中的Flash Bank Map 设置不正确。 链接帖子讨论了类似问题请参考。 TMS320F28P650DK: Problems flashing CPU 2 with CCS - C2000 microcontrollers forum - C2000 ™ ︎ microcontrollers - TI E2E support forumshttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091128/tms320f280049c-boost/3927196Mon, 24 Aug 2026 23:33:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e9cea688-59cb-4bc5-9c93-9da054e6b1f2FRANK1你下载安装一下该芯片主页的SDK，通常的例程都包含在里面。 TMS320F280049C 数据表、产品信息和支持 | 德州仪器 TI.com.cnhttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091128/tms320f280049c-boostMon, 24 Aug 2026 08:01:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:f4b1f0fb-a269-4002-b104-6e243b60d762John PanPart Number: TMS320F280049C 请问有Boost的例程吗？TMS320F280049Chttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091128/tms320f280049c-boost/3927172Mon, 24 Aug 2026 08:01:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:26d957ce-7707-4459-95cf-06284dfa50b7FRANK1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。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091107/c2000-cgt-debug/3927149Mon, 24 Aug 2026 05:17:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:fa8a92ad-3b07-4b8c-a058-1b6714973f97Links您好， 已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091096/uniflash-uniflashl-f2800157/3927138Mon, 24 Aug 2026 03:46:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:7d0ce569-9276-4752-ab96-eb8242e03c16fuqiang fu找到原因了， LAUNCHXL-F2800157 默认4线制，我连了2根线https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091107/c2000-cgt-debugMon, 24 Aug 2026 03:09:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:4020fe79-abd7-4370-8338-32860b8842f1Hongtang MiaoPart Number: C2000-CGT C28xx_CPU1: File Loader: Verification failed: Values at address 0x000000@Program do not match Please verify target memory and memory map. C28xx_CPU1: GEL: File: D:\work_space\13.dsp\test_ethercat\program_i2c_ESC_eeprom_F28P65x\CPU1_RAM\program_i2c_ESC_eeprom_F28P65x.out: a data verification error occurred, file load failed. 出现了软件锁死TMS320F28P650DKC2000-CGThttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091096/uniflash-uniflashl-f2800157/3927103Sun, 23 Aug 2026 12:40:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:b1ddfe4c-d8dc-4cac-8253-4cbbe273e9dcAlice您好， 已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1091096/uniflash-uniflashl-f2800157Sun, 23 Aug 2026 10:58:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:7f219bdd-2045-4189-89ee-0cefe18c677afuqiang fuPart Number: UNIFLASH Other Parts Discussed in Thread: LAUNCHXL-F2800157 , 我使用LAUNCHXL-F2800157开发板，CCS下载仿真都正常，使用UniFlashL烧录F2800157时报错 [ERROR] IcePick_C_0: Error connecting to the target: (Error -2131 @ 0x0) Unable to access device register. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 21.0.0.3955) uniflash试了两个版本都是一样 uniflash_sl.9.5.0.5651 uniflash_sl.9.6.0.5764UniFlashLAUNCHXL-F2800157https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1089651/tms320f28377d-tms320f28377d/3925388Thu, 20 Aug 2026 01:05:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:cb677866-d35e-45c8-ae6c-2a6447f97445LydiaHi, Please refer to this link: (+) TMS320F28377D: TMS320F28377D: Does the device support ROM‑based hardware secure boot for IEC 62443‑4‑2 requirement - C2000 microcontrollers forum - C2000 ™ ︎ microcontrollers - TI E2E support forumshttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1090366/tms320f28335/3924497Wed, 19 Aug 2026 03:40:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:1a920611-ae69-4415-967e-d1ca82659687Eirwen已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1090366/tms320f28335Wed, 19 Aug 2026 03:36:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:b75fe3af-fe05-4514-aaf6-61c071e698acBC LPart Number: TMS320F28335 各位大佬们好，是这样的最近在测试的时候发现一个很邪门的事情。定义了一个16位的联合体A，其中成员B占用了A的2位，也就是uint16_t B :2;，在主循环中没有抓到给B赋值为0的情况，给B赋值是这样的 A.bit.B=0; A.bit.B=1; A.bit.B=2; A.bit.B=3; 实际是有给B赋值成 1或2或3，就是没有0。但是在中断读取 A.bit.B的时候居然读到了0！！！ 针对这样的现象我做了一个测试，在给联合体A的所有成员变量赋值时加了关全局中断保护，即：关全局中断; 给联合体A成员赋值; 开全局中断，这里给A的成员赋值也是通过A.bit.B这个方式赋值，这么一操作后就再也没出现异常了。 然后我又做了一个测试，在不加关中断保护的情况下，直接给整个联合体赋值：A.all = xxx; 这样写测试了好久也没发现出现异常。 再然后我又做了一个测试，定义了一个只有1位的成员，这个只有1位的成员在不加关中断保护的情况下也没出现异常。 请问各位大佬，为什么会出现这样的现象，原因是什么？无论是改成加中断保护还是改成整个联合体赋值改动都很大，还有没有其他更好的方案？谢谢各位大佬TMS320F28335