Write an assembly program that turns on the LED as soon as BTN$0$ is pressed and turns it off as soon as it is released. The program must also use TIMER$0$ timer to measure the duration of pressing the button and print this duration in milliseconds in the terminal window upon the button release. The program must be capable to measure the press duration up to $200$ seconds. Configure button pin for falling and rising edge interrupts. Note that by default TIMER$0$ works in $16-$bit mode, that is$,$ it counts up to $0$xFFFF and then resets to $0.$ Make sure to process GPIO and TIMER$0$ hardware interrupts by using interrupt handlers and NVIC, so no flags polling. WRITE IT IN THIS FORMAT:

INCLUDE EFR$32$BG$22.$inc ; CPU register definitions

INCLUDE terminal.inc ; terminal function definitions

EXPORT main

IMPORT LETIMER$\_$setup ; import names from other code files

IMPORT GPIO$\_$setup

;$-------------------------------------$ ; non$-$initialized DATA segment in RAM

AREA RAM, DATA, NOINIT, READWRITE, ALIGN$=3$

;myWord SPACE $4$ ; $32-$bit variable $($MUST BE ALIGHED!$)$

;myHalf SPACE $2$ ; $16-$bit variable $($MUST BE ALIGHED!$)$

;myByte SPACE $1$ ; $8-$bit variable $($NO alighment required$)$

;$-------------------------------------$ ; CODE segment in flash $($ROM$)$

AREA $|.$text$|,$ CODE, READONLY

main PROC ; main user code

bl Terminal$\_$setup ; setup TeraTerm communication

; bl GPIO$\_$setup ; configure port pins

; bl LETIMER$\_$setup ; start $1-$sec timer for periodic events

; your code starts here

loop ; periodic task starts here

b loop ; repeat periodic task

ENDP

;$-------------------------------------$

;prompt DCB "Enter a number: $",0$ ; allocate constant strings here

ALIGN

;constW DCD $15$ ; initialized $32-$bit constant

;constH DCW $23$ ; initialized $16-$bit constant

;constB DCB $17$ ; initialized $8-$bit constant

ALIGN

END