I am looking for some guidance on flashing the SD bootloader to a LPCXpresso LPC1769 board.
To my knowledge I have been following the instructions to the letter but flash magic is giving the error 'Operation failed. (failed to erase block 0)'
This is the process I have followed:
Placed LPC1769 with link board removed on breadboard
Wired in a 3.3v LDO
Attached a ftdi cable as described
Wired in reset, bootloader and play pause tactile buttons
Performed the button sequence to put the board into serial bootloader mode.
In flash magic I selected ISP>Read Device Signature
Device ID: 0x26113F37
Bootloader Ver: 4.2
Serial Number: 421073182 1398149994 1320840782 4110417923
In Flashmagic Step 1 communications
Baud rate 38400
Interface : None (ISP)
Oscillator MHz 12
I am using the pre compiled hex file linked in the instructions and have checked the md5sum against the one in the repository.
I have checked the box 'Erase blocks used by Hex File'
Can anyone spot anything I am missing. When I try and flash the hex file I get the error cannot erase block 0.