LPCXpresso IDE中的主题 LPC1769 Bootloader - Mass Storage

LPC1769 Bootloader - Mass Storage

lpcware — Wed, 15 Jun 2016 23:17:30 GMT

Content originally posted in LPCWare by icesid on Mon Mar 03 21:44:30 MST 2014
Hi everyone, my first post :)

It seems that on some dev boards there is a reset button that enables the usb device to be recognized as a storage device.

However I cannot find a jumper or pin to bridge on my LPCXpresso 1769 board, and thus cannot download a firmware to it. Any help please?

Cannot find this information in the user manual. Thank you!

Re: LPC1769 Bootloader - Mass Storage

lpcware — Wed, 15 Jun 2016 23:17:31 GMT

Content originally posted in LPCWare by lpcxpresso-support on Tue Mar 04 01:29:18 MST 2014
This is not a native feature of the LPC176x family.

You have probably seen the "mbed" board. This has an additional chip on the board running code that provides this interface over USB and then uses an internal debug connection ("SWD") to program it into the flash of the target chip. This chip and firmware is known as the mbed HDK.

Some of the newer USB-based parts have a USB mass-storage built directly into the on-chip ROM, but the LPC17x family does not. It is possible to write your own "Secondary Boot loader" code that provides this functionality, and to put it int the Flash on the device.

Re: LPC1769 Bootloader - Mass Storage

lpcware — Wed, 15 Jun 2016 23:17:31 GMT

Content originally posted in LPCWare by icesid on Tue Mar 04 08:56:38 MST 2014
Thank you, I was indeed confused.