Cannot put LPC4320 into DFU mode

[adityat]

Hello,

        I am unable to put LPC4320 into DFU mode . The chip is working since the previous uploaded code is still executing on power on . The device doesn't show up on lsusb or dmesg either . How should I proceed to rectify this problem ?

Thanking You

Regards

[jeremyzhou]

Hi ,

Thank you for your interest in NXP Semiconductor products and the opportunity to serve you.

Yes, I don't think you actualy boot from the USB, I'd like to demonstrate the responding message after input the lsusb and dmesg command.

$ lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 413c:2107 Dell Computer Corp. 
Bus 003 Device 002: ID 04ca:0061 Lite-On Technology Corp. 
Bus 003 Device 005: ID 1fc9:000c NXP Semiconductors 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub



$ dmesg

[865677.700729] usb 3-10: new high-speed USB device number 6 using xhci_hcd
[865677.717570] usb 3-10: New USB device found, idVendor=1fc9, idProduct=000c
[865677.717579] usb 3-10: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[865677.717584] usb 3-10: Product: LPC
[865677.717588] usb 3-10: Manufacturer: NXP
[865677.717592] usb 3-10: SerialNumber: ABCD‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Have a great day,
TIC

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[neomissing]

I have also encountered this problem, LPC onboard simulator can not DFU

[jeremyzhou]

Hi neomissing,

Please refer to the reference manual to set the correct configuration to assure the MCU boot form the USB.

Have a great day,
TIC

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