1. Exercise 5: Developing an Embedded Application Write a software application to run on the system that we built in the previous exercise Compile the code using Altera Monitor Program Run the program and examine some debugging features of the Altera Monitor Program 1

2. Application Code (/exercise5/fpga_gpio.c) 2 Read switches and display on LEDs and 7-Segs int main(void)( volatile int * LEDs = (int *) 0xFF200000; volatile int * HEX3_HEX0= (int *) 0xFF200020; volatile int * SW_switch= (int *) 0xFF200040; int hex_conversions[16]= {0x3F,..., 0x71}; while(1) { int value= *SW_switch; *LEDs= value; int first_digit= value & 0xF; int second_digit= (value >> 4) & 0xF; int third_digit= (value >> 8) & 0xF; int hex_value= hex_conversions[first_digit]; hex_value|= hex_conversions[second_digit] << 8; hex_value|= hex_conversions[third_digit] << 16; *HEX3_HEX0= hex_value; }

3. Application Code (/exercise5/fpga_gpio.c) 3 Read switches and display on LEDs and 7-Segs int main(void)( volatile int * LEDs = (int *) 0xFF200000; volatile int * HEX3_HEX0= (int *) 0xFF200020; volatile int * SW_switch= (int *) 0xFF200040; int hex_conversions[16]= {0x3F,..., 0x71}; while(1) { int value= *SW_switch; *LEDs= value; int first_digit= value & 0xF; int second_digit= (value >> 4) & 0xF; int third_digit= (value >> 8) & 0xF; int hex_value= hex_conversions[first_digit]; hex_value|= hex_conversions[second_digit] << 8; hex_value|= hex_conversions[third_digit] << 16; *HEX3_HEX0= hex_value; }

4. Application Code (/exercise5/fpga_gpio.c) 4 Read switches and display on LEDs and 7-Segs int main(void)( volatile int * LEDs = (int *) 0xFF200000; volatile int * HEX3_HEX0= (int *) 0xFF200020; volatile int * SW_switch= (int *) 0xFF200040; int hex_conversions[16]= {0x3F,..., 0x71}; while(1) { int value= *SW_switch; *LEDs= value; int first_digit= value & 0xF; int second_digit= (value >> 4) & 0xF; int third_digit= (value >> 8) & 0xF; int hex_value= hex_conversions[first_digit]; hex_value|= hex_conversions[second_digit] << 8; hex_value|= hex_conversions[third_digit] << 16; *HEX3_HEX0= hex_value; }

5. Program Behaviour 5

6. 6

7. Step 1: Start Altera Monitor Program 7

8. Step 2: Create a New Project 8 Sets up the Altera Monitor Program  Select files to work with  Specify target system

9. Step 2.1: Specify name, directory and architecture 9

10. Step 2.2: Select a Custom System 10

11. Step 2.3: Select Program Type 11

12. Step 2.4: Add Source File 12

13. Step 2.5: Set Board Connection and Select Processor 13

14. Step 2.6: Leave Default Memory Settings 14

15. Step 3: Program the FPGA with the Custom System 15

16. Step 4: Compile and Load 16 Compile your C language program Load the compiled code into the memory on the DE1-SoC board

17. Step 5: Examine the Window Contents 17

18. Step 5: Examine the Window Contents 18 Disassembly

19. Step 5: Examine the Window Contents 19 Registers

20. Step 5: Examine the Window Contents 20 Info & Error Msgs

21. Step 5: Examine the Window Contents 21 Terminal

22. Step 6: Run the Program and Toggle Switches on Board 22

23. Step 7: Pause the Processor 23

24. Step 8: Go to 0xff200000 in Memory Window 24 1 2 3

25. Step 9: Read PIO Registers (Right Click) 25

26. Step 9: Examine Values 26

27. Step 10: Alter the Red LED PIO Register (Double Click) 27

28. Step 11: Test Other Features 28 Single Step

29. Step 11: Test Other Features 29 Breakpoints

30. Step 11: Test Other Features 30 Restart Program

31. Step 12: Disconnect 31