How to use crc

index.js

GitHub: robertklep/node-dsmr-parser

244
245
246
247
248
249
250
251
252
253
254
255
  this.objects    = this.parseObjects(match[2]);
};


Telegram.prototype.checksum = function() {
  var data = this.telegram.match(patterns.CHECKSUM)[1];
  return ('0000' + crc.crc16(data).toString(16)).slice(-4).toUpperCase();
}


Telegram.prototype.parseObjects = function(data) {
  // Extract objects.

4

4

0

See more examples

modbus-client-serial.js

GitHub: ioBroker/ioBroker.modbus

141
142
143
144
145
146
147
148
149
let onError = err => this.emit('error', err);

let onSend = (pdu, unitId) => {
    let pkt = Put().word8((unitId === undefined ? this.options.unitId : unitId) || 0).put(pdu);
    let buf = pkt.buffer();
    let crc16 = crc.crc16modbus(buf);
    pkt = pkt.word16le(crc16).buffer();

    connect();

25

38

0

See more examples

index.js

GitHub: exsilium/xmodem.js

368
369
370
371
372
373
374
375
376
377
                                blockData
                                ]);
log.info('SENDBLOCK! Data length: ' + blockData.length);
log.info(sendBuffer);
if(mode === 'crc') {
  var crcString = crc.crc16xmodem(blockData).toString(16);
  // Need to avoid odd string for Buffer creation
  if(crcString.length % 2 == 1) {
    crcString = '0'.concat(crcString);
  }

5

11

3

See more examples

index.js

GitHub: joseviniciusnunes/qrcode-pix

46
47
48
49
50
51
52
53
54
55
    payload.push(genEMV('61', cep));
}
payload.push(genEMV('62', genEMV('05', transactionId)));
payload.push('6304');
const stringPayload = payload.join('');
const crcResult = crc_1.crc16ccitt(stringPayload).toString(16).toUpperCase().padStart(4, '0');
const payloadPIX = `${stringPayload}${crcResult}`;
return {
    payload: () => payloadPIX,
    base64: (options) => qrcode_1.default.toDataURL(payloadPIX, options),

25

157

0

See more examples

wallet-address-validator.js

GitHub: christsim/multicoin-address-validator

7366
7367
7368
7369
7370
7371
7372
7373
7374
7375
7376
7377
    if (typeof (validCrc) != 'number') {
        return false;
    }


    // get crc of the payload
    var crc = CRC.crc32(tagged);


    return crc == validCrc;
}

334

101

2

See more examples

electron.js

GitHub: Zuoqiu-Yingyi/widget-drawio

1185
1186
1187
1188
1189
1190
1191
1192
1193
1194

	outOffset += data.length;				
}

var crcVal = 0xffffffff;
crcVal = crc.crcjam(typeSignature, crcVal);
crcVal = crc.crcjam(data, crcVal);

// CRC
outBuff.writeInt32BE(crcVal ^ 0xffffffff, outOffset);

0

23

2

See more examples