https://e2echina.ti.com/support/microcontrollers/c2000/zh-CNTelligent Community 13https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078561/tms320f28034-c2000/3884084Thu, 11 Jun 2026 06:32:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:42cbbb40-e713-422e-882f-5c7326ef7af1Alice您好， 读取PC（ program counter），在 TMS320C28x CPU and Instruction Set (Rev. F) 文档278页有示例（Save the Current Program Counter)https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078096/tms320f28335/3884066Thu, 11 Jun 2026 04:20:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:aa22b56d-527a-41d7-a57b-7038b6bb4c24Eirwen可以参考评估板的回路图对照检查下，回路图可以在C2000WARE中找到： www.ti.com.cn/.../C2000WAREhttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1076763/tms320f28335/3884062Thu, 11 Jun 2026 04:07:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:cfe5c7d0-b935-436a-9f4b-ee8f7abe74a9Eirwen可以尝试参考下面Debugging JTAG： Debugging JTAGhttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078095/tms320f28335-28335-p2prog-jtag-bootloader/3884061Thu, 11 Jun 2026 04:05:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:7b67bda7-0bf6-44a6-810f-94bbee63840bEirwen请参考下面链接的Table 4-1. Common Error Codes Table，里面有这个error的Debug Steps: C2000 ™ MCU JTAG Connectivity Debug (Rev. D) 或者下面Debugging JTAG： Debugging JTAGhttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1077248/tms320f28379d-q1-during-the-bscan-test-the-idcode-was-output-from-tdo-after-the-extest-instruction-was-detected/3883654Wed, 10 Jun 2026 20:45:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:03aabf48-97b2-472e-b4b4-c8b874784be1Matthew Pate感谢您提供的更多信息。我需要一些时间来验证此现象，稍后会回复您。我还有一个请求，您能否在本帖中回复一下F28379D IC顶部的标记？该MCU是安装在定制PCB上，还是安装在TI的EVM上，例如LaunchPad或ControlCard？ 最好的， 马修ECTEhttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1077248/tms320f28379d-q1-during-the-bscan-test-the-idcode-was-output-from-tdo-after-the-extest-instruction-was-detected/3883067Wed, 10 Jun 2026 08:39:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:19011344-dc63-4d4f-945b-d15213cf7faehaosha woMy colleague tested the EXTEST_noPUPD (010111) instruction, and the dr reg result was correct, but the dr reg result of the EXTEST (011000) instruction was incorrect. I hope you can test the EXTEST (011000) instruction and send me the results.https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078561/tms320f28034-c2000/3883044Wed, 10 Jun 2026 02:42:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:d7ca980a-0d47-4bb4-9105-f220749ee5b3Alice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/1078561/tms320f28034-c2000Wed, 10 Jun 2026 02:30:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:726096f8-ed97-4429-81b7-c01db845c691qte aPart Number: TMS320F28034 我正在使用C2000芯片，准备使用JTAG对其进行调试，通过spru430f以及spruf82_c28x的文档，我已经通过JTAG对芯片进行了初始化。 但是在后续的设置中，我发现读取PC寄存器总是无法读取到想要的数据，本来应该读取PC寄存器应该停止在0x3FF8A1地址，而我读取到PC寄存器总是指向0x3FF8A3地址。TMS320f28034https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1077248/tms320f28379d-q1-during-the-bscan-test-the-idcode-was-output-from-tdo-after-the-extest-instruction-was-detected/3882243Tue, 09 Jun 2026 17:39:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:17054c90-e331-4f26-8065-f4d09f5e7f7cMatthew Pate如果 F28379D 是链中唯一的设备，IDCODE 也是复位后的默认红外状态，因此如果指令没有正确扫描，那么 DRSCAN = "2" 也会从 JTAG 抽头扫描出来。 该设备的 IDCODE 为 0x0B99C02F”，由于前面有“2”，表示链路上还有其他设备处于旁路模式，我们是否需要相应地调整 irscan 值？ 最好的， 马修ECTEhttps://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078112/tms320f28335-sci-bootloader/3882107Mon, 08 Jun 2026 23:57:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:4628c9dd-6721-43f7-baf1-6ddcee77a6b9Daniel您好 https://www.ti.com.cn/cn/lit/ug/sprui07/sprui07.pdf 根据TRM检查一下您的配置 检查硬件连接以及用示波器抓取一下相关复位信号以及IC的状态是否处于低功耗状态。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078124/tms320f28335-28335-jtagbootloader/3882104Mon, 08 Jun 2026 23:35:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:5a0e68a7-c84d-459e-857e-0c924c86c4c2FRANK1你确认下上面提示的几项内容，那不是不你的开发板有问题。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078124/tms320f28335-28335-jtagbootloader/3881308Mon, 08 Jun 2026 07:44:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:df0abdb0-9a40-4119-afbc-4c306712ea82ccb bcc确实有问题。VDDIO,VDD都是2..4几V，没有XRSn,有XRS也是2.4几V。可是为什么在WIN7上用XDS510就好使呢？这该怎么解决呢？谢谢https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078124/tms320f28335-28335-jtagbootloader/3881306Mon, 08 Jun 2026 07:20:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:449d6e54-e709-4644-b49d-5327617eb9f6FRANK1这是一个硬件问题，你看一下面的report内的error和产生原因。 C2000 ™ MCU JTAG Connectivity Debug (Rev. D) Table 4-1. Common Error Codes Table (continued) Error connecting to the target:(Error -1135 @ 0x0) The emulator Debug Steps This error message is usually caused by hardware related issues. Verify that VDDIO/VDD are properly supplied. Confirm that XRSn is asserting high, indicating that the device is properly coming out of reset. Long JTAG cables, improper termination, or excessive capacitance can also degrade the JTAG signal integrity as well.https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078124/tms320f28335-28335-jtagbootloader/3881305Mon, 08 Jun 2026 07:17:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:6910d9ec-8a82-4e6a-bfd6-b253c0ca9c82FRANK1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/1078124/tms320f28335-28335-jtagbootloaderMon, 08 Jun 2026 07:14:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:dfe3b3ba-61c1-4f91-a789-bb50c9bad840ccb bccPart Number: TMS320F28335 我·的板子在WIN7系统里用XDS510可以仿真烧写。 我的xds100v2仿真器用我自己做的28027小板可以烧写调试。 这证明我的板子没问题，xds100v2仿真器也没问题。 可是我用XDS100V2来给我的28335开发板用JTAG的方式bootloader,就出错啦。 请问高手，如何解决？谢谢TMS320F28335工业自动化https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078093/tms320f28335-28335-bootloader/3881290Mon, 08 Jun 2026 05:14:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:5f50b66b-f631-4f4f-b16a-8ed7c76a258cccb bcc我试了，你弄错了，SCI-A Bootloader的标准配置：GPIO87=1,GPIO86=1,GPIO85=1,GPIO84=0.https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078112/tms320f28335-sci-bootloader/3881276Mon, 08 Jun 2026 03:57:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:9c94103b-b489-49af-8589-0275650bc203Vivian Gao感谢您对TI产品的关注。 我们正在核实您的问题，请等待我们的答复。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078112/tms320f28335-sci-bootloaderMon, 08 Jun 2026 03:08:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:63b77ed6-3e57-4d3c-9228-54b0838b0107ccb bccPart Number: TMS320F28335 请问高手，SCIAbootloader应该如何配置管脚。 我把GPIO87,86,85,84分别设为0,1,1,0 GPIO34,37都设为低电平。 可是C2Prog提示： 请问高手，哪里错了？谢谢！TMS320F28335工业自动化https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1077874/tms320f28027-tms320f28027/3881269Mon, 08 Jun 2026 02:07:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:752a7132-0fd0-4eae-8c07-f988bbdebd24Daniel您好 https://www.ti.com/tool/download/CCSTUDIO 您可以在这个主页相关版本的相关资料。https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1078093/tms320f28335-28335-bootloader/3881268Mon, 08 Jun 2026 02:06:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:5b1a9d47-adc8-4b76-9175-29c022583f4dccb bcc我试了，提示仿真器有问题。