adc10_a_ex2_intRef.c File Reference

#include "driverlib.h"

Go to the source code of this file.

Macros
#define	TIMER_A_PERIOD   80

Functions
void	main (void)
void	ADC10_A_ISR (void)
void	TA0_ISR (void)

Macro Definition Documentation

TIMER_A_PERIOD

#define TIMER_A_PERIOD   80

ADC10_A - Sample A0 input, 1.5V Shared Ref, LED ON if A0 > 0.5V

MSP430F550x Demo A single sample is made on A0 with reference to internal 1.5V Vref.Software sets ADC10SC to start sample and conversion - ADC10SC automatically cleared at EOC. ADC10_A internal oscillator times sample (16x) and conversion. In Mainloop MSP430 waits in LPM0 to save power until ADC10_A conversion complete, ADC10_A_ISR will force exit from LPM0 in Mainloop on reti. If A0 > 0.5V, P1.0 set, else reset.

          MSP430F550x
       -----------------
   /|\|              XIN|-
    | |                 |
    --|RST          XOUT|-
      |          P6.0/A0|<- Sample Signal
      |             P1.0|-> LED

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_A peripheral
• GPIO Port peripheral

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_A0_VECTOR

Definition at line 69 of file adc10_a_ex2_intRef.c.

Function Documentation

ADC10_A_ISR()

void ADC10_A_ISR

(

void

)

Definition at line 179 of file adc10_a_ex2_intRef.c.

References __bic_SR_register_on_exit(), GPIO_setOutputHighOnPin(), and GPIO_setOutputLowOnPin().

main()

void main

(

void

)

Definition at line 71 of file adc10_a_ex2_intRef.c.

References __delay_cycles(), __no_operation(), and TIMER_A_PERIOD.

TA0_ISR()

void TA0_ISR

(

void

)

Definition at line 220 of file adc10_a_ex2_intRef.c.