Write Embedded C code for FRDMKL25Z to interface four switches to perform the operation mentioned in below table and store the results to the locations.

 Table

SW1	SW2	SW3	SW4	Operation	Result stored on location
OFF	OFF	OFF	OFF	No operation	-
ON	OFF	OFF	OFF	Addition	0x1FFFF100 – 0x1FFFF103
OFF	ON	OFF	OFF	Subtraction	0x1FFFF104 – 0x1FFFF107
OFF	OFF	ON	OFF	Multiplication	0x1FFFF108 – 0x1FFFF10F
OFF	OFF	OFF	ON	Division	0x1FFFF110 – 0x1FFFF113

 

Steps to implement the experiment:

1) Configure the SW1, SW2, SW3 and SW4 as an input.

2) Take the two numbers i.e.  unsigned int X= 0x32, Y= 0x04.

3) Implement the switch pressed detected inclined to the operations.

4) Implement the above mentioned table and store the results to the mentioned locations.

5) Continuously check for the switch pressed. Repeat the steps 3 and 4. 

Write embedded C code for FRDMKL25Z to perform linear search of the number 25 from list of 10 elements size 32-bit. If search result true then lit green LED else red LED for 100ms.

 Steps to implement the code:

1) Take the number into any integer.

2) Configure registers for RED and GREEN LEDs.

3) Compare the number with all the elements one by one.

4) If element match with the number given turned on the Green LED for 100ms else turned on RED LED for 100ms.