LPC824M201 - cannot connect

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

LPC824M201 - cannot connect

567 Views
tayfun_eren
Contributor I

Hello,

We have just started our prototype with LPC824M201 MCU. Voltages seem to be fine, however computer doesnt seem to connect to MCU. We have searched through other discussions in here, however we could not spot the failure. Would you be able help us to understand where the problem might come from?

Our log file is:

Executing flash operation 'Program' (Program executable into flash mbed_blinky.bin) - Mon Jul 08 22:32:50 CEST 2019
Checking MCU info...
Scanning for targets...
Executing flash action...
SEGGER J-Link Commander V6.42b (Compiled Feb  5 2019 17:33:07)
DLL version V6.42b, compiled Feb  5 2019 17:31:40
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 LPC-Link 2 compiled Sep 23 2016 12:15:22
Hardware version: V1.00
S/N: 611000000
VTref=3.300V
Target connection not established yet but required for command.
Device "LPC824M201" selected.
Connecting to target via SWD
Cannot connect to target.
Script processing completed.
Unable to perform operation!
Command failed with exit code 1
Thanks,
Tayfun
Tags (1)
0 Kudos
Reply
3 Replies

461 Views
FelipeGarcia
NXP Employee
NXP Employee

Hi Tayfun,

 

In order to have more information of your issue, could you please tell me what commands are you executing in the J-link commander?

 

Also, are you using an external debugger or which debugger interface are you working with?

 

Best regards,

Felipe

0 Kudos
Reply

461 Views
tayfun_eren
Contributor I

Hi Felipe,

Thanks for the reply! We have found the root cause, as it was a grounding issue.

We could detect it by connecting to an oscilloscope.

It is working now!

Thanks anyways,

Tayfun

0 Kudos
Reply

461 Views
FelipeGarcia
NXP Employee
NXP Employee

Hi Tayfun,

 

I am glad to know you have solved your issue. Congrats.

 

Best regards,

Felipe

0 Kudos
Reply