Self-Checking-Tests

This repository includes self checking tests that which help in verification of SoC. The tests have been simulated on an Instruction set simulator (ISS) using which a dump has been created for each test. Running the same tests on the SoC and then comparing the dump files will help us verify the SoC output.

Steps to generate dump file using ISS simulator

Generate elf file from the test file

  riscv32-unknown-elf-gcc -g -Og -o test.o -c test.c
  riscv32-unknown-elf-gcc -g -Og -T test.ld -nostartfiles -o test test.o

Simulate the elf file

spike --rbb-port=9824 -m0x80000000:0x20000 test

Connecting to GDB

Without closing the simulation terminal, In a second terminal run:

openocd -f openocd.cfg

Now we can connect to gdb. To do this, In another terminal run:

riscv32-unknown-elf-gdb test

Debugging and generating dump file:

To establish a link with simulated elf file of test file, type in:

 target remote localhost:3333

Before generating the signature we need to run the test file:

Create a breakpoint
Type in C to run the code till the breakpoint

Now we can generate the signature file: