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Cut off MBR when updating SoftDevice and UICR when updating bootloader as required by the protocol.

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Michael Dietz
2016-03-04 11:17:59 +01:00
parent 24775ec487
commit a6b0da5855
1 changed files with 18 additions and 4 deletions
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22
dist/hex2bin.js vendored
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@@ -116,12 +116,27 @@
return endAddress;
}
return function(hex) {
/**
* Converts a hex file to a binary blob and returns the data as a buffer.
* Any gaps in the hex file are padded with 0xFF in the buffer.
* Any data in addresses under minAddress will be cut off along with any data in addresses above maxAddress.
* This is because we are not to send the Master Boot Recrod (under minAddress) when updating the SoftDevice.
* And we are not to send UICR data (above maxAddress) when updating the bootloader or application.
*/
return function(hex, minAddress, maxAddress) {
var hexLines = hex.split("\n");
var hexSizeBytes = helperGetHexSize(hex);
var startAddress = helperGetBinaryStartAddress(hex);
var endAddress = helperGetBinaryEndAddress(hex);
if (startAddress < minAddress) {
startAddress = minAddress;
}
if (endAddress > maxAddress) {
endAddress = maxAddress;
}
var binarySizeBytes = endAddress - startAddress;
var buffer = new ArrayBuffer(binarySizeBytes);
@@ -140,10 +155,9 @@
var data = line.substr(9, length * 2);
for (var i = 0; i < length * 2; i += 2) {
var index = (baseAddress + addressOffset) - startAddress + (i / 2);
if (index < 0 || index >= binarySizeBytes) {
throw 'ERROR - invalid index in binary';
if (index > 0 || index <= binarySizeBytes) {
view[index] = parseInt(data.substr(i, 2), 16);
}
view[index] = parseInt(data.substr(i, 2), 16);
}
break;
case RECORD_TYPE.END_OF_FILE: