Writ a chunk of code for the TM4C board that does the following Essentially take the...
Writ a chunk of code for the TM4C board that does the following
Essentially take the program we did for lab 2 and modify it so that the frequency that the light cycle goes through changes when a button is pressed. Have it start from 1Hz and for each button press have it increase by 1Hz until 10Hz, at which start over from 1Hz.
Lab 2 code below:
#include <tm4c123gh6pm.h>
int main()
{
int i,j;
SYSCTL->RCGCGPIO |=
0x20;
SYSCTL->RCGCTIMER |= 0x02;
for(i = 0; i < 1000; i++);
GPIOF->DEN = 0xFF;
GPIOF->DIR = 0x0E;
TIMER1->CFG = 0x00;
TIMER1->TAMR = 0x02;
TIMER1->TAILR = 32000000;
TIMER1->CTL = 0x01;
j = TIMER1->TAILR;
while(1)
{
GPIOF->DATA &= 0xF1;
i = TIMER1->TAV;
if ((0 < i) &&
(i<j/3))
GPIOF->DATA
|=0x02;
else if ((j/3 < i) && (i
< 2*j/3))
GPIOF->DATA
|= 0x04;
else
GPIOF->DATA
|= 0x08;
}
return 0;
}
Homework Answers
#include <tm4c123gh6pm.h>
int main()
{
int i,j;
SYSCTL->RCGCGPIO |=
0x20;
SYSCTL->RCGCTIMER |= 0x02;
for(i = 0; i < 1000; i++);
GPIOF->DEN = 0xFF;
GPIOF->DIR = 0x0E;
TIMER1->CFG = 0x00;
TIMER1->TAMR = 0x02;
TIMER1->TAILR = 32000000;
TIMER1->CTL = 0x01;
j = TIMER1->TAILR;
while(1)
{
GPIOF->DATA &= 0xF1;
i = TIMER1->TAV;
if ((0 < i) &&
(i<j/3))
GPIOF->DATA
|=0x02;
else if ((j/3 < i) && (i
< 2*j/3))
GPIOF->DATA
|= 0x04;
else
GPIOF->DATA
|= 0x08;
}
return 0;
}
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