How to achieve 2Mbps data rate?

[qoolink]

Int the website:

link text

FEATURES show the nordice nRF51822 has 3 data rates (2Mbps/1Mbps/250kbps).

But , I set

number of packets transmitted per connection event 20

Connection interval 7.5

I can't achieve 2Mbps throughput ?

[Dave_couling]

If you are trying to get this thru-put with BLE it is not possible. 2Mbps is only possible with proprietary protocol

[qoolink]

How can I obtain/get the BLE with “proprietary protocol” ?

Does the BLE with 1Mbps/0.25Mbps data rates also need to use “proprietary protocol” ?

[qoolink]

How can I obtain/get the BLE with “proprietary protocol” ? Does the BLE with 1Mbps/0.25Mbps data rates also need to use “proprietary protocol” ?

[Dave_couling]

BLE is its own protocol. Proprietary or other protocol's like ANT are different

[RK]

There is no BLE with 'proprietary protocol', you're either using BLE, or you're not using BLE. BLE is defined over an underlying 1Mbps link, however the actual throughput after you take into consideration

1. The overhead of the protocol
2. The fact the link is half-duplex
3. The limitations in BTLE stacks (all of them) which restrict the number of packets which can be transmitted per connection interval
4. The limitations of various communicating devices which may limit how often devices connect
5. Whether you are writing packets requiring responses or writing without response and dealing with dropped packets.

This thread does a good job of summarising what's actually even possible

devzone.nordicsemi.com/.../

with the best combination available it's about .5Mbps