I use Moto Razr to send GATT read request to TI keyfop, this route would use about 500ms, this is too long, so i use sniff tool to parse the timestamp, found that ATT response is sent in the next connection event. How long it would be listen state when connection event is arrivaled? i think ATT response should be in the same connect event of ATT request? so client can quick get the result. follow is sniff result.
It is because of the short time from Rx to Tx. It's only around 104 µs, which is too short a time to do processing through the BLE stack. In fact, the main processor isn't invoked at all during Rx/Tx, only the peripheral module which reads and writes to a buffer.
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