topic Re: Unable to load example Hello World to LPC55s16-EVK in LPC Microcontrollers

Unable to load example Hello World to LPC55s16-EVK

brunomelaneo — Sun, 13 Mar 2022 17:21:14 GMT

Hi.

I just purchased an LPC55s16-EVK and I am currently not able to load the Hello World example imported from the SDK.

Initially, when powered the LPC55s16-EVK board for the first time everything looked fine. The application that comes pre-loaded in the board does what it is supposed to do (the D4 RGB LED blinks and changes colour if USR and WAKEUP buttons are pressed).

The next step was to load other examples. So, using MCUXpressoIDE_11.5.0_7232 on Windows, I installed the SDK_2_11_0_LPCXpresso55S16.zip SDK and imported the Hello World example. After successfully building the example I tried to Debug it but the operation fails because no probes are detected:

After looking for information on how to resolve this issue on the board's user manual I noticed the following information regarding the D8 Link2 LED:

... and the fact is that, after paying closer attention, the D8 LED starts blinking as soon as a USB cable is connected to J1.

So my, current doubts are:

Is the fact that the D8 LED is blinking and Link2 boot has failed the reason why It is not possible to run the HelloWorld from MCuXpresso using the debugger?
How can I solve this issue? (Or al least what could I check next to investigate this issue a bit further)

Thanks in advance for the support!

Re: Unable to load example Hello World to LPC55s16-EVK

Alice_Yang — Tue, 15 Mar 2022 03:58:19 GMT

Hello,

Which port do you connect of board? Please use USB connect with Debug port J1.

And then check device management of PC, whether recognize it, from your screenshot, there is no debug probe.

Alice

Re: Unable to load example Hello World to LPC55s16-EVK

brunomelaneo — Mon, 21 Mar 2022 11:35:39 GMT

Hi Alice,

thank you for the support.

Yes. I am using port J1. But nonetheless, no ne device is shown in the device manager and not debug probe is detected by mcuXpresso.

Re: Unable to load example Hello World to LPC55s16-EVK

Alice_Yang — Tue, 22 Mar 2022 01:53:15 GMT

Hello,

Update debug firmware, refer to

<https://www.nxp.com.cn/docs/en/user-guide/UM11192.pdf>

4.2 Programming the Link2 firmware
As mentioned earlier in this section, it is not normally necessary to program the Link2
firmware. However, this can easily be accomplished using the supporting utility,
LPCScrypt.
To program the Link2 Flash the Link2 device (LPC432x) must be in DFU mode. If the
Link2 already has a valid image in the flash, it will need to be forced into DFU mode by
placing a jumper shunt on JP6 (DFU), and power cycling (disconnecting then
reconnecting power via J1.) Link2 MCU programming is performed using the LPCScrypt
utility (see http://www.nxp.com/lpcscrypt). Instructions for using the tool are located at the
same web page.
After installing LPCScrypt, use either the “Program LPC-Link2 with CMSIS-DAP” or
“Program LPC-Link2 with JLink” utilities provided in that installation to update the
firmware, following on-screen instructions.

Then check Device Manager of your PC.

Alice