using
internal DCO (0.999908182 seconds)
Here
calculations are done assuming DCO = 1.1MHz
Time
= ((1100+1)/1.1MHz)*999 = 0.999908182 seconds...!
.include "msp430g2x31.inc"
.include "msp430g2x31.inc"
org
0xf800
mov #(WDTPW|WDTHOLD), &WDTCTL
mov #0x280, SP
mov.b #0x41,&P1DIR
clr.b P1OUT
clr R5
mov #(TASSEL_2|MC_1|ID_0|TAIE), &TACTL
mov #1100, &TACCR0
eint
jimmy:
jmp jimmy
TAISR:
inc R5
cmp #999, R5
jne exit
xor.b #0x41,&P1OUT
clr R5
exit:
bic #1, &TACTL
reti
org
0FFF0h
dw
TAISR
org
0FFFEh
dw
0xf800
Time = (65000*2)+1/1.1MHz = 0.118182727
.include "msp430g2x31.inc"
org
0xf800
mov
#(WDTPW|WDTHOLD), &WDTCTL
mov #0x280, SP
mov.b
#0x41,&P1DIR
mov.b
#0x41,P1OUT
mov
#(TASSEL_2|MC_3|TAIE), &TACTL
mov #65000,
&TACCR0
eint
jimmyloop:
jmp
jimmyloop
jimmyisr:
bic
#1,&TACTL
xor.b #41h,
&P1OUT
reti
ORG
0FFF0h
DW jimmyisr
ORG
0FFFEh
DW 0xf800
.include "msp430g2x31.inc"
org
f800h
mov
#(WDTPW|WDTHOLD), &WDTCTL
mov #0x280, SP
mov.b
#0x41,&P1DIR
mov.b
#0x41,P1OUT
mov
#(TASSEL_2|MC_1), &TACTL
mov #CCIE,
&TACCTL0
mov #65000,
&TACCR0
eint
jimmyloop:
jmp
jimmyloop
jimmyisr:
xor.b #41h,
&P1OUT
reti
ORG
0FFF2h
DW jimmyisr
ORG
0FFFEh
DW 0xf800
org
0xf800
mov
#(WDTPW|WDTHOLD), &WDTCTL
mov #0x280, SP
mov.b
#0x41,&P1DIR
mov.b
#0x41,P1OUT
mov
#(TASSEL_2|MC_3), &TACTL
mov #CCIE,
&TACCTL0
mov #65000,
&TACCR0
eint
jimmyloop:
jmp
jimmyloop
jimmyisr:
xor.b #41h,
&P1OUT
reti
ORG
0FFF2h
DW jimmyisr
ORG
0FFFEh
DW 0xf800
