Forum Post: Packet Error Rate tests?

I am running some tests between two CC2541 devices using HCI_LE_Transmitter_Test and HCI_LE_Receiver_Test.  When I send End_Test to on the receiver, I get a number of packets.

My questions are:

1. How do I get any error rate statistics out of this ?
2. Why don't I get a number of packets transmitted report on the transmitter? it is always 0.
3. How can I control how many packets are actually sent?  The TI HCI has a 'Length_Of_Test_Data' parameter in the HCI_LE_Transmitter_Test, but I don't know what is the unit: bytes, seconds?

Is there any TI specific documentation about this testing interface? The "TI BLE Vendor Specific HCI Reference Guide" does not mention anything about these commands.