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Added an init packet which (for recent DFU OTA protocols) must transferred before the firmware image.

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This commit is contained in:
Michael Dietz
2016-02-17 13:08:26 +01:00
parent 160889f638
commit ccd602838c
2 changed files with 16 additions and 3 deletions
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15
dist/dfu.js vendored
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@@ -131,6 +131,17 @@
}
});
}
/**
* Contains basic functionality for performing safety checks on software updates for nRF5 based devices.
* Init packet used for pre-checking to ensure the following image is compatible with the device.
* Contains information on device type, revision, and supported SoftDevices along with a CRC or hash of firmware image.
*
* Not used in mbed bootloader.
*/
function generateInitPacket() {
return new Uint8Array([0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x00, 0xFE, 0xFF, 0x00, 0x00]); // Temporary init packet.
}
function provision(device, arrayBuffer, imageType) {
return new Promise(function(resolve, reject) {
@@ -289,11 +300,11 @@
var req_opcode = view.getUint8(1);
if (req_opcode === 1 && majorVersion > 6) {
log('write null init packet');
log('write init packet');
controlChar.writeValue(new Uint8Array([2,0]))
.then(() => {
return packetChar.writeValue(new Uint8Array([0]));
return packetChar.writeValue(generateInitPacket());
})
.then(() => {
return controlChar.writeValue(new Uint8Array([2,1]));