DFU/USB boot board configurations

To use DFU/USB boot with the LPC18xx/43xx devices, the chip needs to be configured with the boot jumpers for DFU/USB boot. LPC18xx/43xx devices can boot via the USB0 or USB1 port.

Hitex 1850 and 4350 board

To setup the Hitex 1850 or 4350 boards for USB DFU boot mode, configure the BOOT1 - BOOT4 jumpers as follows:

• BOOT1 pins 1-2
• BOOT2 pins 3-4
• BOOT1 pins 1-2
• BOOT4 pins 3-4

Plug the USB cable into the USB0 connector for DFU boot.

Keil MCB1857 and MCB4357 boards

The MCB1857 and MCB4357 boards have devices with internal FLASH and ISP/IAP support. To setup the board for USB DFU boot mode, reset the board while holding down the ISP button. Plug the USB cable into the USB0 connector for DFU boot.

NGX Xplorer 1830 and 4330 boards

To setup the NGX Xplorer 1830 and 4330 boards for USB DFU boot mode, configure the DIP switch block on J4 as follows:

• 1 - Off
• 2 - On
• 3 - Off
• 4 - On

Plug the USB cable into the USB0 connector for DFU boot.

LPCLink2 boards

To setup the LPCLink2 boards for USB DFU boot mode, make sure jumper JP1 is open.