Problem
Memory test for the demo board with external memory. (Skip this exercise if a demo board with external SRAM is not available.) Write a program that tests the memory locations in the external SRAM. The program is written to test stuck-at-1 and stuck-at-0 faults and proper data connections:
1. To test stuck-at-0 faults, write Ox FF to each memory location and read it back to checlz.
2. To test stuck-at-1 faults, write 0x00 to each memory location and read it baclz to checlz.
3. To test for proper connection, write % 10101010 and %01010101 to each memory location and read them back to check. Output a message to the LCD kit to display the test result at the end of the program.