Preferably this report should be done in Word or similar and saved as a PDF. Write a brief introduction identifying the function of the system RTC .

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

Report

1. Preferably this report should be done in Word or similar and saved as a PDF.
2. Write a brief introduction identifying the function of the system RTC (real time clock) and how it is implemented in hardware…a reasonably short paragraph….and refer to a diagram.
3. Draw a block diagram of the overall system clearly identifying each element, including the internal registers and so forth of the microcontroller (but only those relevant to the project). Clearly show all interconnections in the diagram.
4. Explain how the program accomplished the task. Describe each section…briefly and..
5. Draw a flowchart for the interrupt routine and RTC update section/subroutine.
6. Write a brief conclusion for the assembly language program and include the assembly language code (with comments) in appendix.
7. Complete the C code, for the equivalent programs (using the C code supplied, modify to include variables equivalent to seconds and minutes etc. in your program and ensure it is  structured with a separate function for the RTC section. See note below.
8. Make a final brief comment/conclusion on comparing the two versions of the program.

 

NOTE: In the final assembly code you used packed BCD variables seconds and minutes. You should use the same variables in C which are defined as CHAR. However, the same ‘problem arises’ in that you have to break them into component parts  for displaying on the LEDS. Thus, I have inserted some ‘useful info’ at the end of the C CODE example. However, I will accept ‘comments’ as to the meaning of your code and will not be looking too closely for syntax errors etc. since this is a paper exercise.

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