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0zzy0sbourne0zzy0sbourne
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exp4 and exp6
1 parent 91a8519 commit 662dd9a

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‎Experiment - 4/Micro_Deney_4_2023.pdf‎

215 KB
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‎Experiment - 6/Micro_Experiment_6_2023.pdf‎

372 KB
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‎Experiment - 6/part1.asm‎

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; Define ports and registers
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PORT_DISPLAY equ 0x01 ; Address of the port connected to 7-segment displays
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DELAY_COUNT equ 0xFF ; Delay count for controlling the speed
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ORG 0x0000 ; Start address of the program
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MainLoop
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mov R1, #0x01 ; Initialize register R1 with 0x01
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; Loop through the four displays
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LoopDisplays
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mov [PORT_DISPLAY], R1 ; Output the value of R1 to the display port
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call Delay ; Introduce a delay to control the speed
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mov R1, R1 << 1 ; Shift the value in R1 to the left for the next display
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jz ResetLoop ; If R1 becomes zero, reset the loop
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jmp LoopDisplays ; Repeat the loop for the next display
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ResetLoop
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mov R1, #0x01 ; Reset R1 to 0x01 to restart the loop
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jmp MainLoop ; Repeat the main loop
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Delay
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mov R2, #DELAY_COUNT ; Initialize register R2 with the delay count
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DelayLoop
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dec R2 ; Decrement R2
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jnz DelayLoop ; Continue looping until R2 becomes zero
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ret ; Return from the delay subroutine

‎Experiment - 6/part2.asm‎

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; Define ports and registers
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PORT_DISPLAY equ 0x01 ; Address of the port connected to 7-segment displays
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ORG 0x0000 ; Start address of the program
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Main
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mov R3, #0 ; Initialize register R3 to store the BCD result
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; Binary input value (adjust this value as needed)
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mov R0, #97 ; Example: binary input of 97
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; Call BCD conversion subroutine
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call BCDConvert
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; Display the BCD result on 7-segment displays
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mov [PORT_DISPLAY], R3 ; Output the tens digit
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call Delay ; Introduce a delay
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mov [PORT_DISPLAY], R4 ; Output the ones digit
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; Infinite loop
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jmp Main
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; BCD conversion subroutine
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BCDConvert
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mov R4, R0 ; Copy the binary input to R4
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mov R3, #0 ; Clear R3 for the tens digit
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; Convert tens digit
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BCDLoop
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cmp R4, #10 ; Compare R4 with 10
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jl BCDDone ; If R4 is less than 10, exit the loop
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sub R4, #10 ; Subtract 10 from R4
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inc R3 ; Increment the tens digit
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jmp BCDLoop ; Repeat the loop
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BCDDone
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ret ; Return from the subroutine
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Delay
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; Delay subroutine goes here
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ret ; Placeholder return

‎Experiment - 6/part3.asm‎

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; Define ports and registers
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PORT_DISPLAY equ 0x0200 ; Address of the port connected to 7-segment displays
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; Timer A registers
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TA0CTL equ 0x0160 ; Timer A0 Control
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TA0CCR0 equ 0x0172 ; Timer A0 Capture/Compare 0
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TA0CCTL0 equ 0x0162 ; Timer A0 Capture/Compare Control 0
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ORG 0x0000 ; Start address of the program
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; Initialize the main program
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Main mov.w #WDTCTL, R2 ; Disable Watchdog Timer
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mov.w #WDTPW | WDTHOLD, R3
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mov.w #PORT_DISPLAY, R4 ; Address of the display port
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mov.w #0, R5 ; Clear register R5 for the BCD result
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; Configure Timer A
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mov.w #TA0CTL, R6 ; Load the address of Timer A0 Control register
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mov.w #TASSEL_2 | MC_1 | ID_3, 0(R6) ; Set SMCLK as source, Up mode, and divide by 8
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mov.w #TA0CCR0, R7 ; Load the address of Timer A0 CCR0 register
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mov.w #10486, 0(R7) ; Set the value for 10 ms interrupt (10486 for 1 MHz SMCLK)
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mov.w #TA0CCTL0, R8 ; Load the address of Timer A0 CCTL0 register
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mov.w #CCIE, 0(R8) ; Enable Timer A0 CCR0 interrupt
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; Enable global interrupts
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EINT
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; Infinite loop
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MainLoop jmp MainLoop
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; Timer A0 CCR0 interrupt service routine
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.sect "int09"
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.short TISR
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TISR ; Interrupt service routine code goes here
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; For demonstration purposes, toggle an output on every interrupt
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XOR.B #1, 0(R4) ; Toggle the least significant bit of the display port
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RETI ; Return from interrupt

‎Experiment - 6/part4.asm‎

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; Define ports and registers
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PORT_DISPLAY equ 0x0200 ; Address of the port connected to 7-segment displays
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PORT_BUTTONS equ 0x0210 ; Address of the port connected to buttons
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; Timer A registers
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TA0CTL equ 0x0160 ; Timer A0 Control
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TA0CCR0 equ 0x0172 ; Timer A0 Capture/Compare 0
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TA0CCTL0 equ 0x0162 ; Timer A0 Capture/Compare Control 0
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; Button registers
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BUTTON_STOP equ BIT0 ; Stop button (P1.0)
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BUTTON_START equ BIT1 ; Start button (P1.1)
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BUTTON_RESET equ BIT2 ; Reset button (P1.2)
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; Variables
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SECONDS equ 0x0204 ; Seconds variable
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CENTISECONDS equ 0x0205 ; Centiseconds variable
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TIMER_RUNNING equ 0x0206 ; Flag to indicate if the timer is running (1 if running, 0 if stopped)
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ORG 0x0000 ; Start address of the program
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; Initialize the main program
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Main mov.w #WDTCTL, R2 ; Disable Watchdog Timer
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mov.w #WDTPW | WDTHOLD, R3
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mov.w #PORT_DISPLAY, R4 ; Address of the display port
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mov.w #PORT_BUTTONS, R9 ; Address of the buttons port
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mov.b #0, TIMER_RUNNING ; Initialize timer running flag
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; Configure Timer A
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mov.w #TA0CTL, R6 ; Load the address of Timer A0 Control register
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mov.w #TASSEL_2 | MC_1 | ID_3, 0(R6) ; Set SMCLK as source, Up mode, and divide by 8
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mov.w #TA0CCR0, R7 ; Load the address of Timer A0 CCR0 register
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mov.w #10486, 0(R7) ; Set the value for 10 ms interrupt (10486 for 1 MHz SMCLK)
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mov.w #TA0CCTL0, R8 ; Load the address of Timer A0 CCTL0 register
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mov.w #CCIE, 0(R8) ; Enable Timer A0 CCR0 interrupt
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; Configure buttons as inputs with pull-up resistors
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mov.w #BUTTON_STOP | BUTTON_START | BUTTON_RESET, 0(R9) ; Set pins as inputs
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mov.w #BUTTON_STOP | BUTTON_START | BUTTON_RESET, R10 ; Load button mask to R10
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; Enable global interrupts
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EINT
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; Infinite loop
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MainLoop mov.b 0(R9), R11 ; Read buttons status
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; Check Stop button
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bit.b #BUTTON_STOP, R11
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jnz StopPressed
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; Check Start button
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bit.b #BUTTON_START, R11
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jnz StartPressed
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; Check Reset button
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bit.b #BUTTON_RESET, R11
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jnz ResetPressed
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jmp MainLoop
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StopPressed mov.b #0, TIMER_RUNNING ; Stop the timer
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jmp MainLoop
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StartPressed mov.b #1, TIMER_RUNNING ; Start the timer
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jmp MainLoop
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ResetPressed mov.b #0, TIMER_RUNNING ; Stop the timer
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clr.b SECONDS ; Clear the seconds variable
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clr.b CENTISECONDS ; Clear the centiseconds variable
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jmp MainLoop
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; Timer A0 CCR0 interrupt service routine
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.sect "int09"
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.short TISR
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TISR mov.b TIMER_RUNNING, R12 ; Check if the timer is running
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cmp.b #1, R12 ; If timer is running, proceed with counting
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jeq CountTime
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RETI ; If timer is not running, return from interrupt
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CountTime inc.b CENTISECONDS ; Increment centiseconds
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; Check if one second has passed
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cmp.b #100, CENTISECONDS
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jne SkipSecond
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clr.b CENTISECONDS ; Reset centiseconds
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inc.b SECONDS ; Increment seconds
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SkipSecond RETI ; Return from interrupt

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