what's the size of rf tx buffer on nrf51 and nrf52?

[bluetoothbiao]

Without regard to SD, what's the count of the hardware buf of rf TX? What's the relationship with sd_ble_tx_buffer_count_get ?

[Petter Myhre]

The buffers are in software, inside the SoftDevice. The more buffers you have the more RAM you use. Currently the number of buffers are fixed, but this will soon be configureable when enabling the SoftDevice.