cs_ex3_XT1Fault.c File Reference

#include "driverlib.h"

Go to the source code of this file.

Functions
void	main (void)
void	UNMI_ISR (void)

Variables
uint16_t	status
uint32_t	clockValue

Function Documentation

main()

void main

(

void

)

Definition at line 69 of file cs_ex3_XT1Fault.c.

References clockValue, and GPIO_setOutputLowOnPin().

UNMI_ISR()

void UNMI_ISR

(

void

)

Definition at line 168 of file cs_ex3_XT1Fault.c.

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

Variable Documentation

clockValue

uint32_t clockValue

Definition at line 67 of file cs_ex3_XT1Fault.c.

Referenced by main().

status

uint16_t status

MSP430FR57xx Demo - Output 32768Hz crystal on XT1 and observe failsafe

Description: Configure ACLK = XT1 in LF mode and enter LPM3. To observe failsafe behavior short the crystal briefly on the target board. This will cause an NMI to occur. P1.0 and P3.5 is toggled inside the NMI ISR. Once the fault flag is cleared XT1 operation continues from 32768Hz crystal Otherwise ACLK defaults to VLO (~8KHz). ACLK = LFXT1 = 32kHz, MCLK = SMCLK = 4MHz

    MSP430FR57x
  ---------------

/	|
–	RST

| | | P2.0 |—>ACLK | P1.0 |—>LED | P3.5 |—>LED

Texas Instruments Inc. February 2012 Built with IAR Embedded Workbench Version: 5.40 & Code Composer Studio V5.1

Definition at line 66 of file cs_ex3_XT1Fault.c.

Referenced by UNMI_ISR().