TMP05BRT-500RL7 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

TMP05BRT-500RL7

±0.5°C Accurate PWM Temperature Sensor in 5-Lead SC-70

Analog Devices 

TMP05/TMP06

ENTER INTERRUPT

ROUTINE

START TIMER 1

NO

CHECK IF TIMER 1

IS RUNNING

YES

COPY TIMER 1 VALUES

INTO A REGISTER

RESET TIMER 1

IS TEMPSEGMENT

NO

=1

YE S

CALCULATE

TEMP_HIGH0

RESET TIMER 0

TO ZERO

NO

IS TEMPSEGMENT

=2

YES

CALCULATE

TEMP_LOW0

USING TIMER 1

VALUES

IS TEMPSEGMENT

NO

=3

CALCULATE

TEMP_HIGH1

USING TIMER 0

VALUES

YE S

CALCULATE

TEMP_LOW1

RESET TIMER 0

TO ZERO

CALCULATE

TEMP_HIGH2

USING TIMER 0

VALUES

Figure 36. ADuC812 Interrupt Routine Flowchart

INCREMENT

TEMPSEGMENT

EXIT INTERRUPT

ROUTINE

TMP05 Program Code Example 1

//=============================================================================================

// Description : This program reads the temperature from 2 daisy-chained TMP05 parts.

//

// This code runs on any standard 8052 part running at 11.0592MHz.

// If an alternative core frequency is used, the only change required is an

// adjustment of the baud rate timings.

//

// P3.2 = Daisy-chain output connected to INT0.

// P3.7 = Conversion control.

// Timer0 is used in gate mode to measure the high time.

// Timer1 is triggered on a high-to-low transition of INT0 and is used to measure

// the low time.

//=============================================================================================

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