#include "driverlib.h"

Macros
#define	High_Threshold 818

#define	Low_Threshold 409

#define	SlowToggle_Period 20000 - 1

#define	FastToggle_Period 1000 - 1

Functions
void	main (void)

void	ADC10_A_ISR (void)

void	TIMER0_B0_ISR (void)

Variables
Timer_B_initUpModeParam	paramB2 = {0}

Macro Definition Documentation

◆ FastToggle_Period

#define FastToggle_Period 1000 - 1

Definition at line 78 of file adc10_a_ex3_windowComp.c.

◆ High_Threshold

#define High_Threshold 818

ADC10_A - Sample A1 Input, Window Comparator, 2.5V Internal Ref, TB0 Trigger

MSP430F550x Demo A1 is sampled in every 0.5s using the TA0.0 trigger in single ch/conversion mode. Window comparator is used to generate interrupts to indicate when the input voltage goes above the High_Threshold or below the Low_Threshold or is in between the high and low thresholds. TIMER_B0 is used as an interval timer used to control the LED at P1.0 to toggle slow/fast or turn off according to the ADC10_A Hi/Lo/IN interupts. ADC10_A is configured in pulse sample mode and is triggered by the TA0.0

         MSP430F550x
      -----------------
  /|\|              XIN|-
   | |                 |
   --|RST          XOUT|-
     |          P6.1/A1|<- Sample Signal
     |             P1.0|-> LED [toggle slow/fast or turn off]
     |                 |

This example uses the following peripherals and I/O signals. You must review these and change as needed for your own board:

ADC10_A peripheral
REF peripheral
TIMER_B peripheral
GPIO Port peripheral
A1

This example uses the following interrupt handlers. To use this example in your own application you must add these interrupt handlers to your vector table.

ADC10_A_VECTOR
TIMER0_B0_VECTOR

Definition at line 73 of file adc10_a_ex3_windowComp.c.

◆ Low_Threshold

#define Low_Threshold 409

Definition at line 75 of file adc10_a_ex3_windowComp.c.

◆ SlowToggle_Period

#define SlowToggle_Period 20000 - 1

Definition at line 77 of file adc10_a_ex3_windowComp.c.

Function Documentation

◆ ADC10_A_ISR()

void ADC10_A_ISR ( void )

Definition at line 222 of file adc10_a_ex3_windowComp.c.

References FastToggle_Period, GPIO_setOutputLowOnPin(), paramB2, and SlowToggle_Period.

◆ main()

void main ( void )

Definition at line 82 of file adc10_a_ex3_windowComp.c.

References __delay_cycles(), __no_operation(), FastToggle_Period, GPIO_setOutputLowOnPin(), High_Threshold, Low_Threshold, and paramB2.

◆ TIMER0_B0_ISR()

void TIMER0_B0_ISR ( void )

Definition at line 270 of file adc10_a_ex3_windowComp.c.

Variable Documentation

◆ paramB2

Timer_B_initUpModeParam paramB2 = {0}

Definition at line 80 of file adc10_a_ex3_windowComp.c.

Referenced by ADC10_A_ISR(), and main().

Macros

Functions

Variables