topic Re: LPC1769 - "No connection to chip's debug port" by debug! in LPC Microcontrollers

LPC1769 - "No connection to chip's debug port" by debug!

trong-nghiachen — Tue, 17 Oct 2017 13:26:52 GMT

Software version: MCUXpresso IDE v10.0.2
Sample: NfcrdlibEx1_BasicDiscoveryLoop

Drivers: installed, see picture

Debug Setting:

power: power supply 5v 1000mah

But, if I try to start debug-mode, I get the error-response.

But try a lot of setting and different usb port and jumper-setting, but the error stay the same.

LPC1769 works standalone with "nxp cockpit"

Does someone have an idee?

Re: LPC1769 - "No connection to chip's debug port" by debug!

jeremyzhou — Wed, 18 Oct 2017 02:06:02 GMT

Thank you for your interest in NXP Semiconductor products and

the opportunity to serve you.

To provide the fastest possible support, please refer to LPC-Link2 Debug Probe's Guide

to view the details.

Have a great day,

TIC

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Re: LPC1769 - "No connection to chip's debug port" by debug!

trong-nghiachen — Wed, 18 Oct 2017 07:22:22 GMT

Hi,
I executed the file program_JLINK.cmd and retry the debug function and got new ERROR.
***
Program file does not exist
C:\Users\spx0855\Desktop\WorkSpace\C\NXP\LPC_Workspace\NfcrdlibEx1_BasicDiscoveryLoop\DebugLPC1769\NfcrdlibEx1_BasicDiscoveryLoop.axf not found
C:\Users\spx0855\Desktop\WorkSpace\C\NXP\LPC_Workspace\NfcrdlibEx1_BasicDiscoveryLoop\DebugLPC1769\NfcrdlibEx1_BasicDiscoveryLoop.axf not found
C:\Users\spx0855\Desktop\WorkSpace\C\NXP\LPC_Workspace\NfcrdlibEx1_BasicDiscoveryLoop\DebugLPC1769\NfcrdlibEx1_BasicDiscoveryLoop.axf not found
***

If clean and rebuild the project, there is no .axf file in "Binaries" ...

Update: 18.10.2017 - 9:54
I deleted the workspaces and imported all files from the SW297845.zip and got new problem ...

Update: 18.10.2017 - 11:08
I did reinstall IDE and restart the PC, I could build the projects again, but I got the same Error as yesterday

***
MCUXpresso RedlinkMulti Driver v10.0 (Jun 22 2017 23:31:55 - crt_emu_cm_redlink build 272)
Reconnected to existing redlink server (PID 4294967295)
Connecting to probe 1 core 0 (server PID unknown) gave 'Ee(36). Could not connect to core.'
Connecting to probe 1 core 0 (server PID unknown) gave 'Ee(36). Could not connect to core.'
Connecting to probe 1 core 0 (server PID unknown) gave 'Ee(36). Could not connect to core.'
Server OK but no connection to probe 1 core 0 (after 3 attempts) - Ee(36). Could not connect to core.
Failed on connect: Ee(36). Could not connect to core.
No connection to chip's debug port
error closing down debug session - Em(02). MEM-AP is not selected.
***

I found this thread Debug won't restart
But there is no solution for me.

Update: 18.10.2017 - 11:29
I found the problem.

The cable was connected in wrong direction ...