#include

#include

#include

#include

#include $"$TM$4$C$123$GH$6$PM$.$h$"$

#include "MyDefines.h$"$

void DelayMs$($int ms$)$; $//$ Software Delay Function

void SegDisplay$($uint$8\_$t d$)$;

void Setup$\_$GPIO$($void$)$;

$//$ You nave to finish the following array for Seven Segment Display

char SevenSeg$[]=\{0$x$3$f$,//0$

$0$x$06,//1$

$//$ You have to finish this array for $7-$seg display

$\}$;

int main$()$

$\{$

char ch $=0$;

int i $=0$;

$//$ Place your initialization$/$startup code here $($e$.$g$.$ Setup$\_$GPIO$())$

Setup$\_$GPIO$()$;

while $(1)\{$

$//$ Place your application code here

for $($i $=0$; i $$ sizeof$($SevenSeg$)$; i$++)\{$

SegDisplay$($ch & $0$x$0$F$)$;

ch$++$;

DelayMs$(1000)$;

$\}$

$\}$

$\}$

$//------------------------------------------------------------------------------$

void SegDisplay$($uint$8\_$t d$)$

$\{$

char seg;

seg $=$ SevenSeg$[?]$;

$\}$

$//------------------------------------------------------------------------------$

$/*$

Device Port.Pins DIR DriveMode

Seg$-$a

Seg$-$b

Seg$-$c

Seg$-$d

Seg$-$f

Seg$-$g

Seg$-$dp

SW$1$

SW$2$

Port $\_\_\_\_$

$*/$

void Setup$\_$GPIO$($void$)$

$\{$

$//$ Configure GPIOs

$//1.$ Enable Clock to the GPIO Modules $($SYSCTL$->$RCGCGPIO $|=(\_$PORTs$)$;$)$

SYSCTL$->$RCGCGPIO $|=(\_\_)$;

$//$ allow time for clock to stabilize $($SYSCTL$->$PRGPIO & $(\_$PORTs$))$

while$(($SYSCTL$->$PRGPIO & $(\_\_))!=(\_\_))\{\}$;

$//2.$ Unlock GPIO only PD$7,$ PF$0$ on TM$4$C$123$G; PD$7,$ PE$7$ on TM$4$C$1294($GPIOx$->$LOCK $=0$x$4$C$4$F$434$B; and GPIOx$->$CR $=\_$PINs;$)$

GPIOD$->$LOCK $=0$x$4$C$4$F$434$B;

GPIOD$->$CR $|=\_$PIN$7$;

GPIOD$->$LOCK $=0$;

GPIOF$->$LOCK $=0$x$4$C$4$F$434$B;

GPIOF$->$CR $|=\_$PIN$0$;

GPIOF$->$LOCK $=0$;

$//3.$ Set Analog Mode Select bits for each Port $($GPIOx$->$AMSEL $=\_$PINs; $0=$digital, $1=$analog$)$

$//4.$ Set Port Control Register for each Port $($GPIOx$->$PCTL $=$ PMCn PTCL$\_$PINn, check the PCTL table$)$

$//5.$ Set Alternate Function Select bits for each Port $($GPIOx$->$AFSEL $=\_$PINs; $0=$regular I$/$O$,1=$PCTL peripheral$)$

$//6.$ Set Output pins for each Port $($Direction of the Pins: GPIOx$->$DIR $=\_$PINs; $0=$input, $1=$output$)$

$//7.$ Set PUR bits $($internal Pull$-$Up Resistor$),$ PDR $($Pull$-$Down Resistor$),$ ODR $($Open Drain$)$ for each Port $(0$: disable, $1=$enable$)$

$//8.$ Set Digital ENable register on all port.pins $($GPIOx$->$DEN $=\_$PINs; $0=$disable, $1=$enable$)$

$\}$

$//------------------------------------------------------------------------------$

$//$ Delay ms milliseconds $(16$MHz CPU Clock$)$

void DelayMs$($int ms$)$

$\{$

volatile int i$,$ j;

for $($i $=0$; i $$ ms; i$++)$

for $($j $=0$; j $<mtext></mtext><mn>4</mn><mn>1</mn><mn>6</mn><mn>7</mn>$; j$++)\{\}//$ Do nothing for $1$ms

$\}$ interface a seven$-$segment display to Tiva LaunchPad. The display counts from $\backslash (0\backslash$sim $\backslash )$ F $\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|$c$|$c$|$c$|\}$

$\backslash$hline Device & Port.Pin & $\backslash$begin$\{$tabular$\}\{$c$\}$

Signal $\backslash \backslash$

Type

$\backslash$end$\{$tabular$\}$ & & Direction & $\backslash$begin$\{$tabular$\}\{$c$\}$

Drive $\backslash \backslash$

Mode

$\backslash$end$\{$tabular$\}\backslash \backslash$

$\backslash$hline Seg$-$a & PA$2$ & Digital & $0-$GPIO & OUT$/$POS & $\backslash \backslash$

$\backslash$hline Seg$-$b & PA$3$ & Digital & $0-$GPIO & OUT$/$POS & $\backslash \backslash$

$\backslash$hline Seg$-$c & PA$4$ & Digital & $0-$GPIO & OUT$/$POS & $\backslash \backslash$

$\backslash$hline Seg$-$d & PC$4$ & Digital & $0-$GPIO & OUT$/$POS & $\backslash \backslash$

$\backslash$hline Seg$-$e & PC$5$ & Digital & $0-$GPIO & OUT$/$POS & $\backslash \backslash$

$\backslash$hline Seg$-$f & PC$6$ & Digital & $0-$GPIO & OUT$/$POS & $\backslash \backslash$

$\backslash$hline Seg$-$g & PC$7$ & Digital & $0-$GPIO & OUT$/$POS & $\backslash \backslash$

$\backslash$hline Seg$-$dp & PD$7$ & Digital & $0-$GPIO & OUT$/$POS & $\backslash \backslash$

$\backslash$hline $\backslash$begin$\{$tabular$\}\{$ll$\}$

SW$1($On$-$bo$-$

$\backslash$end$\{$tabular$\}$ & PF$4$ & Digital & $0-$GPIO & IN$/$NEG & UP $\backslash \backslash$

$\backslash$hline $\backslash$begin$\{$tabular$\}\{$ll$\}$

SW$2($On$-$bo

$\backslash$end$\{$tabular$\}$ & Digital & $0-$GPIO & IN$/$NEG & $\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$ Lab Experiments

Comment out the for$-$loop code in the main function inside the while$-$loop.

$```$

while $(1)\{$

$//$ Place your application code here

$//$ for $($i $=0$; i $$ sizeof$($sevenSeg$)$; i$++)\{$

$//$ SegDisplay$($ch & $0$x$0$F$)$;

$//$ ch$++$;

$//$ DelayMs$(1000)$;

$//\}$

$\}$

$```$