LPCXpresso55S69 mbed upload

[Landswellsong]

Hello,

I'm trying to flash an mbed app on an freshly bought LPC55S69 following the steps on the mbed documentation: https://os.mbed.com/platforms/LPCXpresso55S69/

Including the LP Link firmware for the mass storage support: https://os.mbed.com/teams/NXP/wiki/Updating-LPCXpresso-firmware

The process goes alright, but after that I don't seem to be able to flash any firmware, the copying process just hangs.

This is mirroring wha's reported on mbed forums: https://forums.mbed.com/t/lpc55s69-evk-mbed-download-error/6161

I wonder if there is any insight on this problem and how can I contribute to solution? Thanks

[suramina]

Hi

I am facing issue with LPCScrypt (NXP tool) while updating Link2 firmware on my LPCXpresso55S69 board

I have MCU revision 0A.

I can use MCUExpresso IDE and flashing/debugging works. However, whenever I try to flash using LPCScrypt. It doesn't work

Steps that I followed

1. Short jumper J4 and connect USB to port P6.

2. Execute following command

program_CMSIS.cmd lpc4322_bl_crc.bin

The script fails to update and get following output

Would you please help me to fix?

[ZhangJennie]

HI

Please refer below steps to shoot the trouble:

1. set board jumpler as below then connect board with PC

2. follow attached video to update firmware.

3.remove J4, power off and on.  check if IDE can connect board via debugger interface.

Thanks,

Jun Zhang

[ZhangJennie]

Hi

LPCXpresso55S69 recommended CMSIS-DAP and Jlink interface. update the board firmware with LPCScypt tool. Can you please use either of those to debug board? if any problem with it, please let me know.

I never use mbed interface with LPCXpresso55S69 board. The background is, the onboard LPC55S69 has two revisions. the old revision is 0A and new revision is 1B. You need to check which revision you are working with. mbed interface is 3rd party tool, I suggest you check with them if their firmware supports this specific revision.

 Thanks,

Jun Zhang