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F28034不能下载代码,不能进调试模式

Other Parts Discussed in Thread: TMS320F28034, CONTROLSUITE

下面是CCS10报错信息

C28xx: Flash Programmer: Warning: The configured device (TMS320F28034), does not match the detected device (). Flash Programming operations could be affected. Please consider modifying your target configuration file.
C28xx: Failed CPU Reset: (Error -1137 @ 0x0) Device is held in reset. Take the device out of reset, and retry the operation. (Emulation package 9.2.0.00002)
C28xx: Trouble Reading Register PC: (Error -1137 @ 0x0) Device is held in reset. Take the device out of reset, and retry the operation. (Emulation package 9.2.0.00002)
C28xx: Trouble Reading Register ST1: (Error -1137 @ 0x0) Device is held in reset. Take the device out of reset, and retry the operation. (Emulation package 9.2.0.00002)
C28xx: GEL: Error while executing OnReset(-1): Target failed to read register ST1
  at (ST1&~(0x0100)) [f28034.gel:290]
  at C28x_Mode() [f28034.gel:32]
  at OnReset(-(1))
C28xx: GEL: Error calling OnPreFileLoaded(): Reset failed: retcode=-1
C28xx: File Loader: Verification failed: Values at address 0x00000@Program do not match Please verify target memory and memory map.
C28xx: GEL: File: G:\ti\workspace_v10\F28034\Open_Loop_Steper\Debug\OpenLoop_Steper.out: a data verification error occurred, file load failed.

板子是自己做的,现在板子上只有一片F28034,一片LDO LM1117-3.3,必要的退耦电容,复位电路的阻容元件,MCU所有VDD引脚都通过电容接地,第60脚VREGENZ通过电阻接地,使能内部VREG,

如果我把VREGENZ用电阻拉高,再进调试模式,CCS10报错是连接目标失败,VREGENZ改为拉低,就报上面的错误,这个应该能间接说明电源这块是没问题的吧,那么以上错误会是哪里问题啊,MCU换了好几片,都是新买的,用targetconfig能连接上调试器的