cs_ex1_DCO1MHzSWTrim.c File Reference

#include "driverlib.h"
#include "Board.h"

Go to the source code of this file.

Macros
#define	CS_MCLK_DESIRED_FREQUENCY_IN_KHZ   1000
#define	CS_MCLK_FLLREF_RATIO   30

Functions
void	main (void)
void	NMI_ISR (void)

Variables
uint32_t	clockValue = 0
uint16_t	status

Macro Definition Documentation

CS_MCLK_DESIRED_FREQUENCY_IN_KHZ

#define CS_MCLK_DESIRED_FREQUENCY_IN_KHZ   1000

Software Trim on 1MHz DCO

Performs proper software trim both from uncalculated trim values and pre-loaded trim values, and then toggles LED2 ACLK, SMCLK, and MCLK are brought out to external pins on the board.

ACLK = REFO = ~32kHz, MCLK = SMCLK = 1MHz

    MSP430FR2xx_4xx Board
      -----------------
  /|\|                 |
   | |                 |-->ACLK
   --|RST              |-->MCLK
     |                 |-->SMCLK
     |                 |
     |                 |-->LED2

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

• CS 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 cs_ex1_DCO1MHzSWTrim.c.

CS_MCLK_FLLREF_RATIO

#define CS_MCLK_FLLREF_RATIO   30

Definition at line 76 of file cs_ex1_DCO1MHzSWTrim.c.

Function Documentation

main()

void main

(

void

)

Definition at line 92 of file cs_ex1_DCO1MHzSWTrim.c.

References __delay_cycles(), clockValue, CS_MCLK_DESIRED_FREQUENCY_IN_KHZ, CS_MCLK_FLLREF_RATIO, and param.

NMI_ISR()

void NMI_ISR

(

void

)

Definition at line 205 of file cs_ex1_DCO1MHzSWTrim.c.

References status.

Variable Documentation

clockValue

uint32_t clockValue = 0

Definition at line 83 of file cs_ex1_DCO1MHzSWTrim.c.

Referenced by main().

status

uint16_t status

Definition at line 90 of file cs_ex1_DCO1MHzSWTrim.c.

Referenced by NMI_ISR().