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astagi/calculate_chk.js

Last active December 23, 2019 10:54
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calculate_chk.js
let calculateChk = (buff) => {
let ret = 0x00;
for (let i = 0 ; i < buff.length ; i++) {
ret += buff[i];
}
ret = ret & 255;
return (ret ^ 255);
}
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