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

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; }

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; }

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; }

Program Behaviour 5

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Step 1: Start Altera Monitor Program 7

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

Step 2.1: Specify name, directory and architecture 9

Step 2.2: Select a Custom System 10

Step 2.3: Select Program Type 11

Step 2.4: Add Source File 12

Step 2.5: Set Board Connection and Select Processor 13

Step 2.6: Leave Default Memory Settings 14

Step 3: Program the FPGA with the Custom System 15

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

Step 5: Examine the Window Contents 17

Step 5: Examine the Window Contents 18 Disassembly

Step 5: Examine the Window Contents 19 Registers

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

Step 5: Examine the Window Contents 21 Terminal

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

Step 7: Pause the Processor 23

Step 8: Go to 0xff in Memory Window

Step 9: Read PIO Registers (Right Click) 25

Step 9: Examine Values 26

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

Step 11: Test Other Features 28 Single Step

Step 11: Test Other Features 29 Breakpoints

Step 11: Test Other Features 30 Restart Program

Step 12: Disconnect 31