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flashing-the-bootloader [2018/03/02 12:37]
80.63.59.242 [Mbed]
flashing-the-bootloader [2021/02/22 17:49] (current)
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 </callout> </callout>
  
-The SD bootloader is used to facilitate firmware updates : You only need to flash it once, and it makes the first firmware flashing and subsequent firmware updates much more simple.+The SD bootloader is used to facilitate firmware updates : You only need to flash it once, and it makes the first firmware flashing and subsequent firmware updates much more simple.
  
 Basically at boot/reset, it looks for the firmware.bin file on the SD card, and if found, flashes it to the board's FLASH memory ( then renames the file to firmware.cur, so check for that to see if it worked ). Basically at boot/reset, it looks for the firmware.bin file on the SD card, and if found, flashes it to the board's FLASH memory ( then renames the file to firmware.cur, so check for that to see if it worked ).
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 == LPCXpresso1769 or SmoothieBoard == LPCXpresso1769 or SmoothieBoard
  
-To flash the bootloader you need a Serial-USB ( can be a FTDI cable, an arduino, CP2102, etc ) cable connected to the UART0 pins of the LPC1769 ( 6-pin connector noted as "Serial" on a [[smoothieboard]] ), and the "reset" and "bootloader" (ISP) buttons connected.+To flash the bootloader you need a Serial-USB ( can be a FTDI cable, an arduino, CP2102, etc ) cable connected to the UART0 pins of the LPC1769 ( 6-pin connector noted as "Serial" on a [[smoothieboard]] ), and the "reset" and "bootloader" (ISP) buttons connected.
  
-If you have a Smoothieboard, all of this is already there, just connect the Serial-USB/FTDI cable. ( well actually if you have a SmoothieBoard it comes the with the bootloader pre-flashed, just move ahead to the actual firmware flashing. Except for the beta board where you might want to flash anyway to get SDHC support ).+If you have a Smoothieboard, all of this is already there, just connect the Serial-USB/FTDI cable. ( well actually if you have a SmoothieBoard it comes with the bootloader pre-flashed, just move ahead to the actual firmware flashing. Except for the beta board where you might want to flash anyway to get SDHC support ).
 If you have a LPCXpresso1769, you want to look at [[Smoothie On A Breadboard ]] for how to wire the serial cable and the buttons. If you have a LPCXpresso1769, you want to look at [[Smoothie On A Breadboard ]] for how to wire the serial cable and the buttons.