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We want to sample the 7500's at 20 Hz. The record lengths in terse mode (no labels) are about 49 bytes long. This is a throughput of 49 bytes/sample * 20 sample/sec * (10 serial bits/byte) = 9800 bits/sec. So we'll set the baud rate to 19200.

To change the configuration of the licor:

  • adn
  • minicom ttyS8 (start minicom at 9600 baud)
ctrl-A F   (control-A F sends BREAK)

(Outputs (RS232 (EOL "0A") (Labels FALSE) (DiagRec FALSE) (Ndx FALSE) (Aux FALSE) (Cooler FALSE)
(CO2Raw TRUE) (CO2D TRUE) (H2ORaw TRUE) (H2OD TRUE) (Temp  TRUE) (Pres TRUE) (DiagVal TRUE)))

ctrl-A F

(Outputs (BW 20) (RS232 (Freq 20.0)  (Baud 19200)))

You must send the first "Output" statement all on one line, so you might have to cut and paste both lines separately before hitting return.

  • aup
  • No labels