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BL602 tools

Work in progress

bltool.py: flashing utility

Command line arguments

Argument Description
-p / --port The serial port to use
-b / --baudrate the baudrate to use (default: 115200)
-i / --info Print OTP info
-e / --erase Erase the flash chip
-w / --write Write to the flash chip. Usage: -w address filename
-r / --read Read from the flash chip. Usage: -r address length filename
-v / --verify Read back after writing to verify the resulting flash state

Notes

  • Always erase the flash before writing, this is needed because of how flash memory works
  • A baudrate of 115200 works, higher baudrates seem to work but can cause verification errors
  • Needs pre-processed binaries to work, this tool currently does not add the required boot headers
  • Work in progress

printheader.py: show boot header contents

Work in progress!

genheader.py: generate boot headers

Work in progress!

genimage.py: generate flash image from an application

Work in progress!

Other files

Bootloader from SDK: blsp_boot2.bin Flash image generated using the official flashing tool: compare.bin Flashing utility firmware from the official flashing tool: eflash_loader_rc32m.bin Alternative flashing utility firmware from the official flashing tool: eflash_loader_40m.bin Bare application binary: application.bin

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A tool for flashing BL602 boards, work in progress

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