GitHub - Lefuneste83/LPC17xx-DFU-Bootloader: DFU Bootloader for LPC17xx family

Hold P2.12 low during reset to force DFU mode even if application firmware is present.

Some other pins are set output/low ( https://github.com/triffid/LPC17xx-DFU-Bootloader/blob/develop/main.c#L196-L200 ) due to this bootloader being predominantly designed for Smoothieboard.

If the bootloader finds a file named "firmware.bin" on the FAT32-formatted SD card's first partition, it will flash it to the application region (0x4000, +16k - see https://github.com/triffid/LPC17xx-DFU-Bootloader/blob/develop/lpc1769.ld#L34-L35 ), and after successful flashing, rename the file to "firmware.cur" - 'cur' meaning 'current'.

Name		Name	Last commit message	Last commit date
Latest commit History 67 Commits
CMSISv2p00_LPC17xx		CMSISv2p00_LPC17xx
LPC17xxLib		LPC17xxLib
fatfs		fatfs
.gitignore		.gitignore
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
SDCard.c		SDCard.c
SDCard.h		SDCard.h
baudfinder.c		baudfinder.c
descriptor.h		descriptor.h
descriptor_cdc.h		descriptor_cdc.h
descriptor_msc.h		descriptor_msc.h
dfu.c		dfu.c
dfu.h		dfu.h
gpio.c		gpio.c
gpio.h		gpio.h
lpc1758.ld		lpc1758.ld
lpc1769.ld		lpc1769.ld
lpc17xx_bootloader.uvopt		lpc17xx_bootloader.uvopt
lpc17xx_bootloader.uvproj		lpc17xx_bootloader.uvproj
lpc17xx_usb.c		lpc17xx_usb.c
lpc17xx_usb.h		lpc17xx_usb.h
main.c		main.c
min-printf.c		min-printf.c
min-printf.h		min-printf.h
pins.h		pins.h
sbl_config.h		sbl_config.h
sbl_iap.c		sbl_iap.c
sbl_iap.h		sbl_iap.h
skel.c		skel.c
spi.c		spi.c
spi.h		spi.h
spi_hal.h		spi_hal.h
startup.S		startup.S
uart.c		uart.c
uart.h		uart.h
usbcore.c		usbcore.c
usbcore.h		usbcore.h
usbhw.c		usbhw.c
usbhw.h		usbhw.h

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