opensda升级成jlink 能检测到型号却不能下载

iccoder007

SEGGER J-Link Commander V6.14b (Compiled Mar  9 2017 08:46:23)
DLL version V6.14b, compiled Mar  9 2017 08:46:04

Connecting to J-Link via USB...O.K.
Firmware: J-Link OpenSDA 2 compiled May 27 2019 11:01:03
Hardware version: V1.00
S/N: 621000000
VTref = 3.300V


Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: MK20DX128XXX5
Type '?' for selection dialog
Device>MK20DX128XXX5
Please specify target interface:
  J) JTAG (Default)
  S) SWD
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>4000
Device "MK20DX128XXX5" selected.


Found SWD-DP with ID 0x2BA01477
Protection bytes in flash at addr. 0x400 - 0x40F indicate that readout protection is set.
For debugger connection the device needs to be unsecured.
Note: Unsecuring will trigger a mass erase of the internal flash.
Executing default behavior previously saved in the registry.
Device will be unsecured now.
Found SWD-DP with ID 0x2BA01477
Protection bytes in flash at addr. 0x400 - 0x40F indicate that readout protection is set.
For debugger connection the device needs to be unsecured.
Note: Unsecuring will trigger a mass erase of the internal flash.
Executing default behavior previously saved in the registry.
Device will be unsecured now.

****** Error: Kinetis (connect): Timeout while unsecuring device. Erase never starts.
Kinetis (connect): Failed to unsecure Kinetis device.

Found SWD-DP with ID 0x2BA01477
Protection bytes in flash at addr. 0x400 - 0x40F indicate that readout protection is set.
For debugger connection the device needs to be unsecured.
Note: Unsecuring will trigger a mass erase of the internal flash.
Executing default behavior previously saved in the registry.
Device will be unsecured now.
Found SWD-DP with ID 0x2BA01477
Protection bytes in flash at addr. 0x400 - 0x40F indicate that readout protection is set.
For debugger connection the device needs to be unsecured.
Note: Unsecuring will trigger a mass erase of the internal flash.
Executing default behavior previously saved in the registry.
Device will be unsecured now.

****** Error: Kinetis (connect): Timeout while unsecuring device. Erase never starts.
Kinetis (connect): Failed to unsecure Kinetis device.

Cannot connect to target.
J-Link>

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