encodeAsciiHex function
Implementation
List<int> encodeAsciiHex(int value) {
final hexString = value.toRadixString(16).padLeft(4, '0').toUpperCase();
return hexString.codeUnits.map((c) {
final hexDigit = int.parse(String.fromCharCode(c), radix: 16);
return 0x30 + hexDigit;
}).toList();
}