User Manual

Page 87 of 90
CCT24
A sample FSTAT output for 37 channel operation is shown below. The status data is order from the
lowest operating frequency on the left to the highest operating frequency on the right. An ASCII CR-LF
terminates each line. On most frequencies, DataTx and AckRx occur on the same frequency (‘3’). Occa-
sionally there is DataTx, AckRx and RegRx activity (‘7’), DataTx only activity (‘1’), or no activity (‘.’).
333333 33333333 33333373 33333333 3333333
333333 33333333 33333333 33333333 3333333
333333 31333333 33333333 33333333 3333333
23.333 333133.3 3.333323 31333.33 333.333
333333 23333331 33313333 33333333 23.3333
INSTR <option>
Available options are:
0 - off
1 - on
For either a base or a remote, INSTR streams instrumentation packets including a time stamp and seven
data values. The time stamp is a string of four characters. The first three characters are ASCII represen-
tations of hexadecimal numbers. The fourth character is a ‘>’ character. Each time stamp count is 100 µs.
The time stamp rolls over to 0x000 after count 0xCE5. The content of the seven data values are detailed
below. ASCII representations of the hexadecimal value of each byte are output, separated by space
characters:
Byte 0: current channel, 0 to 36
Byte 1: same data as FSTAT 1, except no activity is 0x30
Byte 2: RSSI_Last, RSSI of last RF packet received in dBm, 8-bit signed value
Byte 3: RSSI_Idle, most recent RSSI value on a channel with no expected activity
Byte 4: Range delay estimate, remote only, 3.1 µs/tick
Byte 5: Status bits 1
b7.. b4 - reserved
b3 - inbound data RF flow control, 1 = device has disabled RF flow
b2 - outbound data RF flow control, 1 = base has disabled RF flow
b1 - /HOST_CTS, status of CTS line, 1 = hold
b0 - /DCD, link LED on; on a remote indicates registration with base, on the base it indi-
cates at least on remote is registered (default)
Byte 6: Status bits 0
b7 - CSMA channel busy
b6 - Parser/CRC error
b5 - valid RF packet received (any type)
b4 - DataRx, data packet received
b3 - RegTx, registration or renewal request or reply transmitted
b2 - RegRx, registration or renewal request or reply received
b1 - AckRx, ACK received
b0 - DataTx, data packet transmitted