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***JLink Error: Could not start CPU core. (ErrorCode: -2)

Question asked by wu hanpin on Aug 30, 2018

Target info:
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Device: QN9080C
VTarget = 3.300V
State of Pins:
TCK: 0, TDI: 0, TDO: 1, TMS: 0, TRES: 1, TRST: 1
Hardware-Breakpoints: 6
Software-Breakpoints: 8192
Watchpoints: 4
JTAG speed: 200 kHz

***JLink Error: Could not start CPU core. (ErrorCode: -2)
***JLink Error: Can not read register 15 (R15) while CPU is running
***JLink Error: Can not read register 20 (CFBP) while CPU is running
***JLink Error: CPU is not halted
***JLink Error: Can not read register 15 (R15) while CPU is running
Full Chip Erase Failed!
Error: Flash Download failed - "Cortex-M4"
Flash Load finished at 12:18:04

 

使用开发板可以正常烧些。电路部分检查也没有问题. pin33管脚(chip_mode) 如果接GND,SWD 就找不到核心了。

不知道问题

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