MAS6505 datasheet(13/44 Pages) MAS

13 / 44 page

DA6505.005

11 June 2018

13 (44)

CALIBRATED SENSOR SYSTEM MEASUREMENT FLOW

Figure 3. Flow charts for measurement flow of a calibrated MAS6505 sensor system

Figure 3 present flow charts for measurement flow of calibrated MAS6505 sensor system in both forced mode

(single command based measurement) and normal mode (automated measurements).

POWER UP / RESET

Reset device by writing any data to

Reset register EC/6CHEX

SELECT FORCED MODE

Write MODE=01 or 10 and OSRT and OSRP

to Control register EF/6FHEX

(INCREMENTAL) READ RESULTS

Read pressure and temperature results from

six result registers F1...F6HEX

CALCULATE CALIBRATED

TEMPERATURE

CALCULATE TEMPERATURE

COMPENSATED PRESSURE VALUE

CONTINUE

yes

END

ACTIVATE EEPROM (EON=010 or 101)

READ EEPROM CALIBRATION DATA

INACTIVATE EEPROM (EON=000)

WAIT UNTIL AT LEAST MAX A/D CONVERSION

TIME HAS PASSED or

WAIT STATUS REGISTER FLAGS TO SET

INCREMENTAL READ RESULTS

Read pressure and temperature results from

six result registers F1...F6HEX

CALCULATE CALIBRATED

TEMPERATURE

CALCULATE TEMPERATURE

COMPENSATED PRESSURE VALUE

CONTINUE

yes

SELECT SLEEP MODE

Write MODE=00 to Control register EF/6FHEX

ACTIVATE EEPROM (EON=010 or 101)

READ EEPROM CALIBRATION DATA

INACTIVATE EEPROM (EON=000)

SELECT NORMAL MODE

Write MODE=11 and OSRT and OSRP to

Control register EF/6FHEX

WAIT REPEAT INTERVAL or

WAIT STATUS REGISTER FLAGS TO SET

POWER UP / RESET

Reset device by writing any data to

Reset register EC/6C

HEX

END

CONFIGURE MEASUREMENT

Write configuration to Configuration register

EE/6EHEX

CONFIGURE MEASUREMENT

Write configuration to Configuration register

EE/6E

HEX

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