Use blhost to program/erase LPC54(S)0xx flash

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Note: This document provides a simple description, the details about flashloader can be found at Getting Started with LPC540xx Flashloader User's Guide.pdf which is located in SDK_2.5.0_LPCXpresso54S018\middleware\mcu-boot\doc

Download LPC54S0xx SDK.

Compile the flashloader project to generate flashloader.bin
- The project is located in sdk\boards \lpcxpresso54s018\bootloader_examples\flashloader

Use dfu-util.exe or IDE to load flashloader.bin into RAM.
- dfu-util can be downloaded from http://dfu-util.sourceforge.net/releases/
- Configure the ISP pins and then reset the chip to make the chip to enter USB1 DFU boot mode.
- Boot mode
  
  ISP2
  
  PIO0_6 pin
  
  ISP1
  
  PIO0_5 pin
  
  ISP0
  
  PIO0_4 pin
  
  Description
  
  USB1 DFU boot
  LOW LOW HIGH
  USB DFU class is used to download image over the USB1 high-speed port into SRAM.
- Connect the LPC54S0xx device USB1 high-speed port and PC with USB. The following is the command line to load the flashloader.bin:

$ dfu-util.exe –D flashloader.bin

Use blhost to program/erase LPC540xxM/LPC54S0xxM flash
- Once the flashloader binary is downloaded and starts its execution on the LPC54S0xx platform and there remains a physical USB connection between the LPC54S0xx platform USB1(High-Speed) and host, the flashloader will be ready to receive the commands.
- blhost -u 0x1fc9,0x01a2 -- get-property 12
- blhost -u 0x1fc9,0x01a2 -- fill-memory 0x2000d000 4 0xc0000004
- blhost -u 0x1fc9,0x01a2 -- configure-memory 0xa 0x2000d000
- blhost -u 0x1fc9,0x01a2 -- get-property 25 0xa
- blhost -u 0x1fc9,0x01a2 -t 100000 -- flash-erase-region 0x10000000 0x100000
- blhost -u 0x1fc9,0x01a2 -t 100000 -- write-memory 0x10000000 xxx.bin

Note: xxx.bin is the target file which needs to be downloaded to the flash.

Author: Hao Liu

Thanks for Hao Liu.

yasushihasegawa · ‎08-29-2019

Dear Alice-san,

$ dfu-util.exe –D flashloader.bin

I think I need a driver before doing the above, where can I get the driver?

Best Regards,

Yasushi Hasegawa