Hello,
I have a TWR-KV58220M board and i cant debug with J-link or PEmicro universal(via JTAG port).
I’ve tried to unlock it by using MCUExpresso Gui flash tool(Resurrect locked Kinetis Device) and i succeed.Afterwards i still got a trouble with connection to MKV58.
Those are the messages of “Resurrect Kinetis Device via J-Link”
- Checking MCU info...
- Scanning for targets...
- Executing flash action...
- SEGGER J-Link Commander V6.32b (Compiled May 8 2018 18:26:51)
- DLL version V6.32b, compiled May 8 2018 18:26:33
- J-Link Command File read successfully.
- Processing script file...
- J-Link Commander will now exit on Error
- J-Link connection not established yet but required for command.
- Connecting to J-Link via USB...O.K.
- Firmware: J-Link OpenSDA 2 compiled Oct 13 2015 12:10:56
- Hardware version: V1.00
- S/N: 621000000
- VTref=3.300V
- Found SWD-DP with ID 0x5BA02477
- Unlocking device...O.K.
- Script processing completed.
When i look at the RESET_B pin of TWR-K58, i noticed that the RESET_B keep oscillating,i see a “square wave” in every 100ms.
I pulled RESET_B pin to low and tried to program with J-link and PE Micro Universal but no success.
Finally,I tried to connect TWR-K58 by using J-Link Commander.See the attachment for outputs.
J-Link Firmware : J-Link OpenSDA 2 compiled Oct 13 2015 12:10:56
Hardware version:V1.00
How can i debug again this chip? What is the issue that i am facing?
Regards.