time out when DFU fail

[MR.liu]

Hi ALL: now the time out when dfu fail is 120s,It's a little bit long for us，can i reduce it ？how much is the least?

[MR.liu]

It is to said that under normal circumstances waiting for peer activity is far less than the 30S? 30s timeout to fully meet system requirements of transmission?

[MR.liu]

How much size is the packets which can trigger peer activity? for example 20 byte?my application DFU upgrade package is 127kB, how many times peer activity triggered?just once?

[bjorn-spockeli]

YEs, in a connection the maximum payload of a BLE packet is 20 bytes, so an image of 127 kB will be about 6503 packets. The dfu timer will be reset when a data packet is received, so it will not timeout unless the connection is broken.

[MR.liu]

thank your for help，You solved my problem very well.