Raveon RV-M7, Technical Manual

Page: 52 / 67

RV-M7 Technical Manual
52
11.4 ATST Command
The ATST command, will return the following information:
STATISTICS
Good RX Packets : nnn
(packets received over the air with no bit-errors and correct address)
With Bad CRCs : nnn
(over-the-air packets with bit errors that were discarded)
With Bad Noise : nnn
(receptions that were aborted due to noise, CW jamming, lost signal…)
Bytes received : nnn
(number of bytes this modem received, and sent out its serial port)
Bytes transmitted: nnn
(number of bytes this modem received via the serial port, and
transmitted over the air)
Packets send : nnn
(number of packets this modem has transmitted over the air.
Retransmissions in the ARQ mode are not counted)
ACKs received : nnn
(Number of ACK packets this modem received, when ARQ was
enabled)
ACKs transmitted : nnn
(Number of ACK packets sent over-the-air in the ARQ mode)
Pkts last minute : nnn
(Number of packets received during the last minute)
UART errors : nnn
(serial port framing and overrun errors. Usually these are caused by
incorrect serial port settings)
OK
If there is a hardware problem, there may be one ore more hardware error messages listing the
error types (
CPU Exceptions, OS Rebooted, or Fatal OS failures
). Consult the
factory if any of these messages ever appear.)
11.5 ATST2 Command
The ATST2 command, will return additional lower-level statistics:
RF FIFO overruns : nnn
(number of times the modem was too busy to receive data over-the-air)
Wrong address : nnn
(packets with addresses intended for some other unit. Also will count
apparent false packets due to random noise)
Duplicate packets: nnn
(number of packets discarded because they already were received, and
subsequently re-received due to ARQ mode or a repeater)
Missing ACKs : nnn
(number of transmissions in ARQ mode, where this sending M7 did not
receive an ACK back as it expected to)
TX FIFO overflows: nnn
(number of bytes of data that came into the M7 over-the-air, and there
because there was no buffer space for the data, were discarded. If
greater than 0, the serial-port baud-rate should in increased. )
RX FIFO overflows: nnn
(number of bytes of data came into the M7 ’s serial port, and there was
no room in the M7 to buffer the data before transmission, so these
bytes were discarded. If greater than 0, flow-control should be enabled,
hardware flow-control implemented, or the serial-port baud rate
reduced.)
OS loop time : nnn
(number of times OS executes, per baud. Typical 10-200. 0 or >5000
means there is a serious OS problem).
OS Speed : nnn
(speed of the main Operating System, in Hz. Typical 8000-30000. )
VCO Bias : nnn
(the DAC value that biases the VCO in the radio. 0-1024 = 0-3.3V)
Config : hhhh
(hexadecimal representation of an internal configuration word.)
OK