Garmin LIDAR-Lite v1 Silver Label Operating Manual page 37

Detailed Register Descriptions – Internal
Unless otherwise noted, all registers contain one byte and are read and write.
Control Register #0 (0x00) (control_reg[0]:)
Notes
● Command Register
● Write 0x00 to Register 0x00​ : Reset FPGA. Re­loads FPGA from internal Flash memory – all
registers return to default values
● Write 0x01 to Register 0x00:​ Correlation processing without new acquisition – used to process
delay of second peak after bit 0 in control register 0x4b is set to 1
Write 0x02 to Register 0x00:​ Process correlation without new acquisition – used to reprocess
●
Write 0x03 to Register 0x00:​ Take acquisition & correlation processing without DC correction
●
Write 0x04 to Register 0x00:​ Take acquisition & correlation processing with DC correction
●
Control Register #1 (0x01) ­ Mode/Status (control_reg[1]:)
Bit Function
Bit 7 Eye Safe
Bit 6 External Trigger
Complete
Bit 5 Velocity
complete
Bit 4 Secondary
return
Bit 3 Signal not valid Indicates that the signal correlation peak is equal to or below
Bit 2 Sig overflow
flag
Bit 1 Ref overflow
flag
Bit 0 Health*
*Health status indicates that the preamp is operating properly, transmit power is active and a reference
pulse has been processed and has been stored.
Control Register #2 (0x02) (control_reg[2]:)
LIDAR­Lite v1 "Silver Label" Manual​ , Updated: 08/13/15
This bit will go high if eye­safety protection has been activated
External measurement performed
Velocity measurement completed
Secondary return detected above correlation noise floor threshold
correlation record noise threshold
Overflow detected in correlation process associated with a signal
acquisition
Overflow detected in correlation process associated with a
reference acquisition
"1" state indicates that all health monitoring criteria were met on the
last acquisition. "0" possible problem
Notes