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小弟最近做智能车,自己画的板子。焊好后与Jlink连接出现以下信息
SEGGER J-Link Commander V4.66 ('?' for help)
Compiled Mar 11 2013 11:01:06
DLL version V4.66, compiled Mar 11 2013 11:00:46
Firmware: J-Link ARM V8 compiled Nov 14 2012 22:34:52
Hardware: V8.00
S/N: 17935099
Feature(s): RDI,FlashDL,FlashBP,JFlash
VTarget = 3.306V
Info: TotalIRLen = 4, IRPrint = 0x01
Info: ARM AP[0]: 0x24770011, AHB-AP
Info: ARM AP[1]: 0x001C0000, JTAG-AP
****** Error: No APB-AP found.
No devices found on JTAG chain. Trying to find device on SWD.
Info: Found SWD-DP with ID 0x2BA01477
****** Error: Could not read AHB-AP Id. Could not connect to target.
Info: Found SWD-DP with ID 0x2BA01477
No device found on SWD.
Failed to identify target. Trying again with slow (4 kHz) speed.
Info: TotalIRLen = 4, IRPrint = 0x01
Info: ARM AP[0]: 0x24770011, AHB-AP
Info: ARM AP[1]: 0x001C0000, JTAG-AP
****** Error: No APB-AP found.
No devices found on JTAG chain. Trying to find device on SWD.
Info: Found SWD-DP with ID 0x2BA01477
****** Error: Could not read AHB-AP Id. Could not connect to target.
Info: Found SWD-DP with ID 0x2BA01477
No device found on SWD.
J-Link>
焊了好几块,只有一块能正常连接,其他则不能。各种方法都试过了还是不行,这让我很是头疼,求各位不吝赐教
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