Is there any SD for nrf52 just work on ble peripheral like S110?

[bluetoothbiao]

The nrf52 with SDK 0.9.2 SDs132_nrf52_2.0.0-4.alpha_softdevice has 3 TX_buffers(2 count can i used).

I think there may be some preserve TX_buffers for BLE central or ANT.

[Petter Myhre]

There will no S110 for the nRF52, but with the S132 you will soon be able to configure the number of TX buffers, i.e. number of packets per connection interval. For the peripheral role it will be configureable up to 6 packets per connection interval or 7 TX buffers.

[bluetoothbiao]

so 7*32BYTE will be the most size of the tx_buffer in the future of nrf52 SD?

[Petter Myhre]

For the near future yes. The maximum number of TX buffers will be 7, while you can effectively use 6 of them to transmit 6*20 bytes of ATT data in each connection interval (if the peer also supports it).

[bluetoothbiao]

The Mtu will be changed by some api at the same "near future"?

[bluetoothbiao]

sorry I click the button "covnvert to answer" by incaution