Skip to content

Latest commit

 

History

History
63 lines (48 loc) · 1.59 KB

README.md

File metadata and controls

63 lines (48 loc) · 1.59 KB
Raw

STM32 chip firmware update using NodeJs

stm32 firmupdate step

  1. BOOT0 to 1
  2. RESET to 1
  3. RESET to 0

boot mode enter

  1. TX 0x7F
  2. RX 0x79

flash erase

  1. TX 0x43
  2. TX 0xBC
  3. RX 0x79 // erasing flash
  4. TX 0xFF
  5. TX 0x00
  6. RX 0x79 // flash Erase success

---------------- loop start ---------------

  1. TX 0x31
  2. TX 0xCE
  3. RX 0x79

send address starting 0x08000000

0x12345678
|31-----------24|23-----------16|15------------8|7---------bit 0|
+---------------+---------------+---------------+---------------+
|0 0 0 1 0 0 1 0|0 0 1 1 0 1 0 0|0 1 0 1 0 1 1 0|0 1 1 1 1 0 0 0|
+---------------+---------------+---------------+---------------+

  1. TX -
    1byte - 0 0 0 1 0 0 1 0
    2byte - 0 0 1 1 0 1 0 0
    3byte - 0 1 0 1 0 1 1 0
    4byte - 0 1 1 1 1 0 0 0
    5byte - XOR (|0 0 0 1 0 0 1 0|0 0 1 1 0 1 0 0|0 1 0 1 0 1 1 0|0 1 1 1 1 0 0 0|)

  2. RX 0x79 // address send

  3. TX number of bytes --- (128 -1)

  4. Tx 128 byte send

checksunm TX -- XOR(send byte)

  1. RX 0x79 // packet send done .........................

------------ loop end ------------------------

boot mode exit

  1. BOOT0 to 0
  2. RESET to 1
  3. RESET to 0

Referecnce

  1. https://nodejs.org/docs/latest-v12.x/api/
  2. https://medium.com/hackernoon/arduino-serial-data-796c4f7d27ce
  3. https://serialport.io/docs/next/api-serialport
  4. https://theiotlearninginitiative.gitbook.io/embedded-linux/subsystems/general-purpose-input-output
  5. http://doc.industio.com/docs/ssd20x_manual/ssd20x_manual-1cradq5hh4qn2
  6. https://github.com/florisla/stm32loader/tree/master