orhanli1
Junior Member level 1
Hello everybody.
I took this program from Davie's book for MSP430-1121STK as well
and i changed it for MSP430FG4618 board.It's pin descriptions are different than above.
it is
But when i compile i take 3 errors
-expected a field name
-expression must be a modifiable value
-identified "IFG1_bit" is undefined (all of are in line 16 LED2 = ˜ IFG1_bit . WDTIFG ; )
i feel that i have to change LED2 = ˜ IFG1_bit . WDTIFG
but what i must write instead of it
I took this program from Davie's book for MSP430-1121STK as well
Code C - [expand] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Listing 8.1: Program wdtest1.c to demonstrate the watchdog timer. // wdtest1 .c - trival program to demonstrate watchdog timer // Olimex 1121 STK board , 32 KHz ACLK // J H Davies , 2007 -05 -10; IAR Kickstart version 3.42 A // ---------------------------------------------------------------------- # include < io430x11x1 .h> // Specific device // ---------------------------------------------------------------------- // Pins for LEDs and button # define LED1 P2OUT_bit . P2OUT_3 # define LED2 P2OUT_bit . P2OUT_4 # define B1 P2IN_bit . P2IN_1 // Watchdog config : active , ACLK /32768 -> 1s interval ; clear counter # define WDTCONFIG ( WDTCNTCL | WDTSSEL ) // Include settings for _RST / NMI pin here as well // ---------------------------------------------------------------------- void main ( void ) { WDTCTL = WDTPW | WDTCONFIG ; // Configure and clear watchdog P2DIR = BIT3 | BIT4 ; // Set pins with LEDs to output P2OUT = BIT3 | BIT4 ; // LEDs off ( active low ) for (;;) { // Loop forever LED2 = ˜ IFG1_bit . WDTIFG ; // LED2 shows state of WDTIFG if (B1 == 1) { // Button up LED1 = 1; // LED1 off } else { // Button down WDTCTL = WDTPW | WDTCONFIG ; // Feed / pet /kick / clear watchdog LED1 = 0; // LED1 on } } }
and i changed it for MSP430FG4618 board.It's pin descriptions are different than above.
it is
Code C - [expand] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 #include <msp430.h> #define LED4 BIT1 #define LED1 BIT2 #define SW1 BIT0 #define WDTCONFIG (WDTCNTCL|WDTSSEL) void main (void) { WDTCTL=WDTPW|WDTCONFIG; P5DIR=BIT1; P2DIR=BIT2; for(;;) { LED4=~IFG1_bit.WDTIFG; if(SW1==1) { WDTCTL=WDTPW|WDTCONFIG; P2OUT=BIT2; } else { P2OUT=0x00; } } }
But when i compile i take 3 errors
-expected a field name
-expression must be a modifiable value
-identified "IFG1_bit" is undefined (all of are in line 16 LED2 = ˜ IFG1_bit . WDTIFG ; )
i feel that i have to change LED2 = ˜ IFG1_bit . WDTIFG
but what i must write instead of it