ucs_ex3_XT1SourcesACLK.c File Reference

#include "driverlib.h"

Go to the source code of this file.

Functions
void	main (void)
void	NMI_ISR (void)

Variables
uint16_t	status

Function Documentation

main()

void main

(

void

)

Definition at line 71 of file ucs_ex3_XT1SourcesACLK.c.

References __no_operation().

NMI_ISR()

void NMI_ISR

(

void

)

Definition at line 125 of file ucs_ex3_XT1SourcesACLK.c.

References status.

Variable Documentation

status

uint16_t status

XT1 sources ACLK. Toggles P1.0

This program demonstrates using XT1 to source ACLK ACLK = LFXT1 = 32,768Hz An external watch crystal between XIN & XOUT is required for ACLK

         MSP430F5438A
       -----------------
  /|\ |              XIN|-
   |  |                 | 32kHz
   ---|RST          XOUT|-
      |                 |
      |            P11.0|--> ACLK = ~32kHz
      |                 |
      |             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:

• UCS module
• 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.

• None.

Definition at line 69 of file ucs_ex3_XT1SourcesACLK.c.

Referenced by NMI_ISR().