topic Re: NXP usb secondary bootloader LPC51u68 in LPC Microcontrollers

NXP usb secondary bootloader LPC51u68

BetoGreen — Sat, 08 Jan 2022 20:13:51 GMT

I am looking for example code for a secondary bootloader for 51u68. Anyone got there yet?

- I am using the the internal MSD for now but my customer wants a secondary bootloader.

- I tried AN12689, the mcu-boot middlewhere does not show up in mxuxpresso when I modify the sdk as per AN12689 . I guess its for Keil...

Re: NXP usb secondary bootloader LPC51u68

ZhangJennie — Mon, 10 Jan 2022 04:10:27 GMT

Hi BetoGreen

There is no USB secondary bootloader demo code based on MCUXpresso IDE.

User needs to import Keil demo to MCUXpresso IDE by self.

Have a nice day,

Jun Zhang

Re: NXP usb secondary bootloader LPC51u68

BetoGreen — Fri, 21 Jan 2022 18:00:51 GMT

I tried the Keil example. It is too difficult for me to convert to MCUxpresso and I don't want to spend weeks getting it going only to find its not what I wanted. They do things in a completely different way.

I have started to write my own. Do you have any bootloader example code in MCUxpresso or LPCXpresso for any LPCxxx controllers you can share?

Re: NXP usb secondary bootloader LPC51u68

ZhangJennie — Mon, 24 Jan 2022 03:56:31 GMT

There is an application about USB Secondary bootloadr for LPC11u6x, you can refer to it : https://www.nxp.com/docs/en/application-note/AN12037_LPC11U6x.zip

The demo can run under MCUXpresso IDE.