Write the $8051-$assembly program code in polling mode

$($without interruption$)$ that flashes $($turns on and off$)$ the LED

cormected to P$1\mathrm{.}0$ at $0\mathrm{.}8-$second intervals for P$0\mathrm{.}0$ button

pressed.

C$$z$$m$/$Solution:

$4-(30$p$)$ Bir bankada $100$al$$an bulunmaktad$$r$.$ Banka iris

tan$$ma sistemi ile en y$$ksek seviyede g$$venli$$e sahiptir. $Bu$

sistem ile her gal$$ana iliskin $5$ bitlik bir dijital kod

olu$$turulmu$$ ve bir tabloya kaydedilmi$$tir$.$ Bu sisteme ili$$kin

donan$$msal blok diyagram$$ a$$a$$da sunulmu$$tur$.$ Ki$$i

alg$$lamas$$ P$1\mathrm{.}5$ pinine ba$$l$$ olan sens$$r ile sa$$lanmaktad$$r$.$

Ki$$i alg$$lamas$$ ile $P0\text{'}$m y$$ksek $5$ bitinden bir kod gelmekte

ve e$$er gelen ki$$i kayth ki$$i ise; $200*200$Y$$k i$-$i$$e d$$ngii

yapisi ile olu$$turulan gecikme aral$$klanyla $3$ defa P$2\mathrm{.}0\text{'}$a ba$$l$$

olan ye$$il led yan$$p$-$s$$nmektedir$.$ Aksi halde P$2\mathrm{.}1\text{'}$e ba$$l$$ olan

buzzer aktif olup alarm $$almaktad$$r$.$ Bunun i$$in gerekli olan

There are $100$ employees in the bank. The bank nas the murn it

level of security with its iris recognition system. With this

system, an $5-$bit digital code for each employee was created

and recorded in a table. The hardware block diagram of this

system is presented in the figure given above. Person

detection is provided from the P$1\mathrm{.}5$ by the sensor$.$ With person

detection, a $5-$bit code via P$0\text{'}$s high $5-$bit comes, and if the

incoming person is a registered person, the green LED

connected to P$2\mathrm{.}0$ blinks $3$ times with delay intervals created

with the $200**200$ nested loop structure. Otherwise, the buzzer

$($alarm$)$ connected to P$2\mathrm{.}1$ is active. Write the needed $8051$

assembly program codes.

C$$zam$/$Solution:

Ba$$arilar$.$