SP1ML Datasheet, PDF (21/27 Pages) STMicroelectronics – SPIRIT1 868 and 915 MHz low power RF modules with integrated microcontroller

SP1ML
#
S27
S28
Module operation
Table 10. Configuration registers (continued)
Name
Description
Source_FILT_MASK
Address: An 8-bit source filter mask, used when source filtering is
enabled.
Values: Any 8-bit hexadecimal value.
Default: 0x00
PAYLOAD_SIZE
Packet: Packet payload size in bytes.
Values: 1 to 96
Default: 32
3.5
Information registers
#
Name
I0 PER
I1 RSSI
I2 LQI
I3 PQI
I4 SQI
I5 PACKET_COUNT
I6 PACKETS_LOST
Table 11. Information registers
Description
Packet error rate (%).
Received signal strength indicator.
Link quality indicator.
Preamble quality indicator.
Synchronization quality indicator.
Count of packets received.
Count of packets lost.
3.6
Example command sequence
Table 12 shows a typical command sequence to enter command mode, issue AT
commands to configure settings of the SPIRIT1 radio and then exit back to operating mode.
Host command
+++
ATS02=38400
ATS03=2
ATS04=+8
AT/C
ATO
Table 12. Example configuration AT sequence
Module response
Description
OK<LF><CR>
Escape sequence to put module into command mode
from operating mode.
OK<LF><CR>
Set the radio data rate to 38400 bps.
OK<LF><CR>
Set the modulation scheme to GFSK1.
OK<LF><CR>
Set the output power to +8 dBm.
OK<LF><CR>
Write configuration to EEPROM.
OK<LF><CR>
Return to operating mode.
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