USB Flashing Format (UF2) JavaScript Library

JavaScript implementation of the UF2 file format

!NPM Version
!License: MIT
!Types: TypeScript

Usage example

javascript

const fs = require('fs');

const { decodeBlock, familyMap } = require('uf2');



const file = fs.openSync('blink.uf2', 'r');

const buffer = new Uint8Array(512);

while (fs.readSync(file, buffer) === buffer.length) {

  const block = decodeBlock(buffer);

  const family = familyMap.get(block.boardFamily) || 'unknown';

  const { totalBlocks, blockNumber, flashAddress, payload } = block;

  const hexAddress = '0x' + flashAddress.toString(16);

  console.log(

Block ${blockNumber + 1}/${totalBlocks} @${hexAddress}, Family: ${family}

);

  // Do something with payload...

}

fs.closeSync(file);

``

For more examples, see the unit tests file.

License

USB Flashing Format (UF2) JavaScript Library

JavaScript implementation of the UF2 file format

!NPM Version
!License: MIT
!Types: TypeScript

Usage example

javascript

const fs = require('fs');

const { decodeBlock, familyMap } = require('uf2');



const file = fs.openSync('blink.uf2', 'r');

const buffer = new Uint8Array(512);

while (fs.readSync(file, buffer) === buffer.length) {

  const block = decodeBlock(buffer);

  const family = familyMap.get(block.boardFamily) || 'unknown';

  const { totalBlocks, blockNumber, flashAddress, payload } = block;

  const hexAddress = '0x' + flashAddress.toString(16);

  console.log(

Block ${blockNumber + 1}/${totalBlocks} @${hexAddress}, Family: ${family}

);

  // Do something with payload...

}

fs.closeSync(file);

``

For more examples, see the unit tests file.