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inav-configurator
mirror of https://github.com/iNavFlight/inav-configurator
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more cleanup

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pull/3/head
cTn 11 years ago
parent 2773919538
commit cc13ab5760
1 changed files with 17 additions and 19 deletions
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36
workers/hex_parser.js
Unescape Escape View File

@ -28,27 +28,25 @@ function read_hex_file(data) {
switch (record_type) {
case 0x00: // data record
if (byte_count > 0) {
var crc = byte_count + parseInt(address.substr(0, 2), 16) + parseInt(address.substr(2, 2), 16) + record_type;
for (var needle = 0; needle < byte_count * 2; needle += 2) {
var num = parseInt(content.substr(needle, 2), 16); // get one byte in hex and convert it to decimal
result.data.push(num);
crc += num;
result.bytes++;
}
var crc = byte_count + parseInt(address.substr(0, 2), 16) + parseInt(address.substr(2, 2), 16) + record_type;
for (var needle = 0; needle < byte_count * 2; needle += 2) {
var num = parseInt(content.substr(needle, 2), 16); // get one byte in hex and convert it to decimal
result.data.push(num);
// change crc to 2's complement (same as checksum)
crc = ~crc + 1;
crc &= 0xFF;
crc += num;
result.bytes++;
}
// change crc to 2's complement (same as checksum)
crc = ~crc + 1;
crc &= 0xFF;
// verify
if (crc != checksum) {
hexfile_valid = false;
// verify
if (crc != checksum) {
hexfile_valid = false;
// break out of the for loop as crc is wrong anyway, we dont need to process any more data
i = data.length;
}
// break out of the for loop as crc is wrong anyway, we dont need to process any more data
i = data.length;
}
break;
case 0x01: // end of file record

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