def run_tests(elf, comment):
mark = 0
comment("Starting to run prac 3 tests")
ii = InterrogatorInterface()
comment(ii.comms_test())
ii.reset(0) # pull line low. This does a reset
with OpenOCD(comment) as openocd:
time.sleep(0.2)
ii.reset(1) # release line. Allows code to run.
with GDBInterface(elf, comment) as gdb:
gdb.open_file()
gdb.connect()
gdb.erase()
gdb.load()
gdb.send_continue()
# assert no button, ensure that AA->55->AA timing is 0.47-0.53 2/2
comment("=== Part 1 ===")
mark += part1_tests(ii, comment)
comment("===Part 2 ===")
mark += part2_tests(ii, comment)
comment("=== Part 3 ===")
mark += part3_tests(ii, comment)
ii.highz_pin(0)
ii.highz_pin(1)
comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def run_tests(self):
mark = 0
self.comment("Starting to run prac 5 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
for test in [self.part1_tests, self.part2_tests, self.part3_tests, self.part4_tests]:
mark += test()
self.ii.highz_pin(0)
self.ii.highz_pin(1)
size_of_text = elf_parser.get_text_size(self.full_path_to_elf)
if size_of_text > 272:
print("======Size of TEXT suspiciously large==========")
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def run_tests(self):
mark = 0
self.comment("Starting to run prac 6 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
self.gdb.send_continue()
time.sleep(3)
for test in [self.part1_tests, self.part2_tests, self.part3_tests]:
mark += test()
self.ii.highz_pin(0)
self.ii.highz_pin(1)
self.ii.highz_pin(2)
self.ii.highz_pin(3)
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def run_tests(self):
mark = 0
self.comment("Starting to run prac 7 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
for test in [self.part1_tests]:
try:
mark += test()
except Exception as e:
self.comment("Unrecoverable exception while running test. Aborting")
self.comment(str(e))
break
self.ii.highz_pin(0)
self.ii.highz_pin(1)
self.ii.highz_pin(2)
self.ii.highz_pin(3)
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def run_tests(elf, comment):
mark = 0
comment("Starting to run prac 1 tests")
ii = InterrogatorInterface()
comment(ii.comms_test())
ii.reset(0) # pull line low. This does a reset
with OpenOCD(comment) as openocd:
time.sleep(0.2)
ii.reset(1) # release line. Allows code to run.
with GDBInterface(elf, comment) as gdb:
gdb.open_file()
gdb.connect()
gdb.erase()
gdb.load()
# run to copy_to_RAM_complete
if gdb.run_to_label("copy_to_RAM_complete") == False: # could not find label
comment("Mark = 0")
return mark
comment("Now verifying the first four words in RAM")
# verify the 4 words, awarding a mark for each
mark += verify_word(gdb, comment, 0x20000000, 0xAABBCCDD)
mark += verify_word(gdb, comment, 0x20000004, 0x00001122)
mark += verify_word(gdb, comment, 0x20000008, 0x00002233)
mark += verify_word(gdb, comment, 0x2000000c, 0x55555555)
# modify the 4 words
comment("Modifying 0x20000000 to be 0xCC0000BB")
gdb.write_word(0x20000000, 0xCC0000BB)
comment("Modifying 0x20000004 to be 0xAA")
gdb.write_word(0x20000004, 0xAA)
comment("Modifying 0x20000008 to be 0x42")
gdb.write_word(0x20000008, 0x42)
comment("Modifying 0x2000000c to be 0x69")
gdb.write_word(0x2000000c, 0x69)
# move data into 0x20000020, same data as 0x20000010
gdb.write_word(0x20000020, 0xCC000011)
# run to infinite_loop
if gdb.run_to_label("infinite_loop") == False:
comment("Aborting.")
return mark
# verify the 4 words
mark += verify_word(gdb, comment, 0x20000010, 0xCC000011)
mark += verify_word(gdb, comment, 0x20000014, 0xCC0001A7)
mark += verify_word(gdb, comment, 0x20000018, 0xE8)
mark += verify_word(gdb, comment, 0x2000001c, 0x2bd4)
# query pattern on LEDs
led_data = ii.read_port(0)
comment("Bonus: data read from LEDs as: {a:#x}, and should be 0x11".format(a = led_data))
if led_data == 0x11:
comment("Bonus correct! :-). 2/0")
mark += 2
else:
comment("Bonus not done. 0/0")
comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def run_tests(self):
mark = 0
self.comment("Starting to run prac 4 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
self.comment("=== Part 1 ===")
mark += self.part1_tests()
self.comment("===Part 2 ===")
mark += self.part2_tests()
self.comment("Sending 'continue' to allow code to free-run")
self.gdb.send_continue()
self.comment("=== Part 3 ===")
mark += self.part3_tests()
self.comment("=== Part 4 ===")
mark += self.part4_tests()
self.comment("=== Part 5 ===")
mark += self.part5_tests()
self.ii.highz_pin(0)
self.ii.highz_pin(1)
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def run_tests(elf, comment):
mark = 0
comment("Starting to run prac 2 tests")
ii = InterrogatorInterface()
comment(ii.comms_test())
ii.reset(0) # pull line low. This does a reset
with OpenOCD(comment) as openocd:
time.sleep(0.2)
ii.reset(1) # release line. Allows code to run.
with GDBInterface(elf, comment) as gdb:
gdb.open_file()
gdb.connect()
gdb.erase()
gdb.load()
if gdb.run_to_label("all_off") == False:
comment("Could not hit label 'all off'. Aborting")
return mark
# ensure that only the correct pins are set as outputs:
if gdb.read_word(0x48000400) <= 0x5555:
comment("Only the lower byte of port B set to outputs. 1/1")
mark += 1
else:
comment("More than the lower byte of port B set to outputs. 0/1")
for label, expected in [["display_AA", 0x00], ["all_on", 0xAA], ["bonus", 0xFF]]:
if gdb.run_to_label(label) == False:
comment("Could not hit label '{l}'. Aborting".format(l=label))
return mark
led_data = ii.read_port(0)
if led_data == expected:
mark_to_add = 2
else:
mark_to_add = 0
comment("LED data should be {exp:#X} and is {led:#X}: {toadd}/2".format(exp = expected, led=led_data, toadd=mark_to_add))
mark += mark_to_add
comment("Attempting bonus")
gdb.delete_all_breakpoints()
bonus_correct = True
for i in range(0, 7): # checking the bonus 7 times.
if [0, 1, 1, 1, 0, 0, 1][i] == 1: # sequence of button pushes and not pushes
ii.highz_pin(0) # simulate a button release
comment("Simulating not pushing SW0")
if gdb.run_to_label("all_off") == False:
comment("Could not hit label 'all_off' implying that you don't have a loop. Aborting")
return mark
if ii.read_port(0) != 0xFF: # should be all on when not pushing button
comment("Excpected 0xFF on the LEDs but got {led:#X}".format(led = ii.read_port(0)))
bonus_correct = False
break
comment("Expected 0xFF on LEDs and got it")
else:
ii.clear_pin(0) # simulate a button push
comment("Simulating pushing SW0")
if gdb.run_to_label("all_off") == False:
comment("Could not hit label 'all_off' implying that you don't have a loop. Aborting")
return mark
if ii.read_port(0) != 0x55:
comment("Excpected 0x55 on the LEDs but got {led:#X}".format(led = ii.read_port(0)))
bonus_correct = False
break
comment("Expected 0x55 on LEDs and got it")
if bonus_correct == True:
comment("Bonus correct! :-). 2/0")
mark += 2
else:
comment("Bonus not done. 0/0")
comment("All tests complete. Mark: {m}".format(m=mark))
return mark
class Prac5Tests:
def __init__(self, comment, submission_dir, src_name):
self.comment = comment
self.src_name = src_name
self.full_path_to_elf = None
self.submission_dir = submission_dir
def build(self):
as_proc = subprocess.Popen(["arm-none-eabi-as", \
"-mcpu=cortex-m0", "-mthumb", "-g", \
"-o", self.submission_dir + "/main.o", \
self.submission_dir + "/" + self.src_name], \
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if (as_proc.wait() != 0):
error_message = as_proc.communicate()
self.comment("Compile failed. Awarding 0. Error message:")
self.comment(error_message[0].decode())
self.comment(error_message[1].decode())
return False
self.comment("Compile succeeded. Attempting to link.")
ld_proc = subprocess.Popen(["arm-none-eabi-ld", \
"-Ttext=0x08000000", \
"-o", self.submission_dir + "/main.elf", \
self.submission_dir + "/main.o"], \
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if (ld_proc.wait() != 0):
error_message = ld_proc.communicate()
self.comment("Link failed. Awarding 0. Error message:")
self.comment(error_message[0].decode())
self.comment(error_message[1].decode())
return False
self.full_path_to_elf = self.submission_dir + "/main.elf"
self.comment("Link succeeded")
return True
def run_tests(self):
mark = 0
self.comment("Starting to run prac 5 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
for test in [self.part1_tests, self.part2_tests, self.part3_tests, self.part4_tests]:
mark += test()
self.ii.highz_pin(0)
self.ii.highz_pin(1)
size_of_text = elf_parser.get_text_size(self.full_path_to_elf)
if size_of_text > 272:
print("======Size of TEXT suspiciously large==========")
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def scale_mark(self):
self.comment("Scaling PRAC5 mark by factor dependant on submission time")
self.comment("No scale factor implemented for this prac.")
return mark
def part1_tests(self):
self.comment("=== Part 1 ===")
# run to initialisations_complete
if self.gdb.run_to_label("initialisations_complete") == False:
return 0
# set start of ram to some sensible value
self.comment("Setting 0x20000000 to {sa:#x}".format(sa = SPECIAL_ADDRESS))
self.gdb.write_word(0x20000000, SPECIAL_ADDRESS)
# run to fib_calc_complete and verify fibs
if self.gdb.run_to_label("fib_calc_complete") == False:
self.comment("Could not hit label 'fib_calc_complete'. Aborting")
return 0
self.comment("Verifying array of fib numbers")
for idx, val in enumerate(FIB_NUMBERS):
address = 0x20002000 - 0x4 - (4 * idx)
if self.gdb.read_word(address) != val:
self.comment("Words at address {addr:#x} should be {exp} but is {act}".format(\
addr = address, exp = val, act = self.gdb.read_word(address)))
self.comment("Aborting")
return 0
self.comment("Verification completed successfully. 2/2")
return 2
def part2_tests(self):
self.comment("=== Part 2 ===")
# run to cycle_patterns
if self.gdb.run_to_label("cycle_patterns") == False:
return 0
# validate sensible values
data_at_special_address = self.gdb.read_word(SPECIAL_ADDRESS)
self.comment("Data at {sa:#x} should be {max_fib:#x}. Found to be {found:#x}".format( \
sa = SPECIAL_ADDRESS, max_fib = FIB_NUMBERS[-1], found = data_at_special_address))
if data_at_special_address != FIB_NUMBERS[-1]:
self.comment("Incorrect. 0/2")
return 0
else:
self.comment("Correct. 2/2")
return 2
def part3_tests(self):
self.comment("=== Part 3 ===")
self.gdb.soft_reset()
# run to initialisations_complete
if self.gdb.run_to_label("initialisations_complete") == False:
return 0
# set illegal value in start of RAM
self.comment("Setting 0x20000000 to {sa:#x}".format(sa = ILLEGAL_ADDRESS))
self.gdb.write_word(0x20000000, ILLEGAL_ADDRESS)
# continue and verify that pattern is 0xAA
if self.gdb.run_to_label("HardFault_Handler") == False:
return 0
self.gdb.send_continue()
time.sleep(0.5)
pattern_on_leds = self.ii.read_port(0)
if pattern_on_leds != 0xAA:
self.comment("HardFault handler expected to produce pattern 0xAA but instead got {p:#x}".format(\
p = pattern_on_leds))
return 0
self.comment("HardFault handler hit on illegal value and displaying 0xAA. 1/1")
return 1
def part4_tests(self):
self.comment("=== Part 4 ===")
# reset
self.gdb.send_control_c()
self.gdb.soft_reset()
if self.gdb.run_to_label("initialisations_complete") == False:
return 0
# run to initialisations_complete
# set start of ram to some sensible value
self.comment("Setting 0x20000000 to {sa:#x}".format(sa = SPECIAL_ADDRESS))
self.gdb.write_word(0x20000000, SPECIAL_ADDRESS)
# set breakpoint on delay_routine
# run to breakpoint in a loop until pattern 0x81 is found.
#self.comment("Running to 'delay_routine' in a loop until pattern 0x81 found")
#pattern_found = False
#for i in range(0, 10):
# self.gdb.run_to_label("delay_routine")
# if self.ii.read_port(0) == 0x81:
# pattern_found = True
# break
#if pattern_found == False:
# self.comment("Could not find 0x81 on LEDs after 10 loop itterations. Aborting")
# return 0
#self.comment("Found 0x81. Now checking the rest of the patterns by running to 'delay_routine'.")
# run to delay_routine again. Verify that next pattern until all patterns
pattern_array = [0xC3, 0xE7, 0xFF, 0x7E, 0x3C, 0x18]
#for idx, val in enumerate(pattern_array):
# self.gdb.run_to_label("delay_routine")
# pattern_on_leds = self.ii.read_port(0)
# if pattern_on_leds != pattern_array[idx]:
# self.comment("On loop iteration number {lp} the pattern {found:#x} was found but should be {exp:#x}".format(
# lp = idx, found = pattern_on_leds, exp = val))
# return 0
# continue
#self.comment("All patterns found to use 'delay_routine'")
self.comment("Testing time between patterns")
self.gdb.send_continue()
# verify all patterns with 0.5 delay between.
for i in range(0, len(pattern_array) - 1):
delay = self.ii.transition_timing(pattern_array[i], pattern_array[i+1])
self.comment("Delay between {p1:#x} and {p2:#x} found to be {d}".format(
p1 = pattern_array[i], p2 = pattern_array[i+1], d = round(delay,2)))
if delay > 0.53 or delay < 0.47:
self.comment("Incorrect. 0/2")
return 0
self.comment("Delays found to be correct. 2/2")
return 2
class Prac6Tests:
def __init__(self, comment, submission_dir, src_name):
self.comment = comment
self.src_name = src_name
self.full_path_to_elf = None
self.submission_dir = submission_dir
def build(self):
self.comment("Changing dir to submission dir")
os.chdir(self.submission_dir)
all_files = os.listdir()
elf_files = [fi for fi in all_files if fi.endswith(".elf")]
if len(elf_files) > 0:
self.comment("Elf files exist before make run: {e}".format(e = all_files))
self.comment("Aborting")
return False
self.comment("Running 'make'")
make_proc = subprocess.Popen(["make"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
try:
return_code = make_proc.wait(timeout = 5)
except subprocess.TimeoutExpired:
make_proc.kill()
self.comment("Make did not complete after 5 seconds. Aborting")
return False
if (return_code != 0):
error_message = make_proc.communicate()
self.comment("Make failed. Awarding 0. Error message:")
self.comment(error_message[0].decode())
self.comment(error_message[1].decode())
return False
self.comment("Make succeeded. Attempting to link.")
self.comment("Searching submission directory for .elf files")
all_files = os.listdir()
elf_files = [fi for fi in all_files if fi.endswith(".elf")]
if len(elf_files) > 1:
self.comment("Too many elf files out of {e}".format(e = all_files))
return False
if len(elf_files) == 0:
self.comment("No elf files out of: {e}".format(e = all_files))
return False
self.comment("One elf file produced: {e}".format(e = elf_files[0]))
self.full_path_to_elf = self.submission_dir + "/" + elf_files[0]
return True
def run_tests(self):
mark = 0
self.comment("Starting to run prac 6 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
self.gdb.send_continue()
time.sleep(3)
for test in [self.part1_tests, self.part2_tests, self.part3_tests]:
mark += test()
self.ii.highz_pin(0)
self.ii.highz_pin(1)
self.ii.highz_pin(2)
self.ii.highz_pin(3)
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def part1_tests(self):
self.comment("=== Part 1 ===")
self.comment("Releasing both SW2 and SW3")
self.ii.highz_pin(2)
self.ii.highz_pin(3)
time.sleep(1)
current_pattern = self.ii.read_port(0)
timing = self.ii.transition_timing(current_pattern + 3, current_pattern + 4)
self.comment("Timing between an increment expected to be 0.5 and found to be: {t}".format(t = round(timing, 2)))
if timing < 0.47 or timing > 0.53:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Correct. 4/4")
return 4
def part2_tests(self):
self.comment("=== Part 2 ===")
self.comment("Releasing SW2 and pressing SW3")
self.ii.highz_pin(2)
self.ii.clear_pin(3)
time.sleep(1)
current_pattern = self.ii.read_port(0)
timing = self.ii.transition_timing(current_pattern - 3, current_pattern - 4)
self.comment("Timing between a decrement expected to be 0.5 and found to be: {t}".format(t = round(timing, 2)))
if timing < 0.47 or timing > 0.53:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Correct. 1/1")
self.ii.highz_pin(2)
self.ii.highz_pin(3)
return 1
def part3_tests(self):
self.comment("=== Part 3 ===")
self.comment("Pressing SW2 and releasing SW3")
self.ii.clear_pin(2)
self.ii.highz_pin(3)
self.comment("Asserting 0.54 V on port A5. Period should become 0.17 seconds.")
self.ii.write_dac(42)
time.sleep(1)
current_pattern = self.ii.read_port(0)
timing = self.ii.transition_timing(current_pattern + 4, current_pattern + 5)
self.comment("Timing between an increment expected to be 0.17 and found to be: {t}".format(t = round(timing, 2)))
if timing < 0.14 or timing > 0.20:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Pressing SW2 and pressing SW3")
self.ii.clear_pin(2)
self.ii.clear_pin(3)
self.comment("Asserting 2.59 V on port A5. Period should become 0.41 seconds.")
self.ii.write_dac(200)
time.sleep(1)
current_pattern = self.ii.read_port(0)
timing = self.ii.transition_timing(current_pattern - 3, current_pattern - 4)
self.comment("Timing between an increment expected to be 0.41 and found to be: {t}".format(t = round(timing, 2)))
if timing < 0.37 or timing > 0.45:
self.comment("Timing out. Awarding 0")
return 0
return 3
class Prac7Tests:
def __init__(self, comment, submission_dir, src_name):
self.comment = comment
self.src_name = src_name
self.full_path_to_elf = None
self.submission_dir = submission_dir
def build(self):
self.comment("Changing dir to submission dir")
os.chdir(self.submission_dir)
all_files = os.listdir()
elf_files = [fi for fi in all_files if fi.endswith(".elf")]
if len(elf_files) > 0:
self.comment("Elf files exist before make run: {e}".format(e = all_files))
self.comment("Aborting")
return False
self.comment("Running 'make'")
make_proc = subprocess.Popen(["make"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
try:
return_code = make_proc.wait(timeout = 5)
except subprocess.TimeoutExpired:
make_proc.kill()
self.comment("Make did not complete after 5 seconds. Aborting")
return False
if (return_code != 0):
error_message = make_proc.communicate()
self.comment("Make failed. Awarding 0. Error message:")
self.comment(error_message[0].decode())
self.comment(error_message[1].decode())
return False
self.comment("Searching submission directory for .elf files")
all_files = os.listdir()
elf_files = [fi for fi in all_files if fi.endswith(".elf")]
if len(elf_files) > 1:
self.comment("Too many elf files out of {e}".format(e = all_files))
return False
if len(elf_files) == 0:
self.comment("No elf files out of: {e}".format(e = all_files))
return False
self.comment("One elf file produced: {e}".format(e = elf_files[0]))
self.full_path_to_elf = self.submission_dir + "/" + elf_files[0]
return True
def run_tests(self):
mark = 0
self.comment("Starting to run prac 7 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
for test in [self.part1_tests]:
try:
mark += test()
except Exception as e:
self.comment("Unrecoverable exception while running test. Aborting")
self.comment(str(e))
break
self.ii.highz_pin(0)
self.ii.highz_pin(1)
self.ii.highz_pin(2)
self.ii.highz_pin(3)
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def part1_tests(self):
self.comment("=== Part 1 ===")
self.comment("Running to main")
self.gdb.run_to_function("main")
self.comment("Allowing code to free run")
self.gdb.send_continue()
self.comment("Reading value displayed on LED")
time.sleep(1)
leds = self.ii.read_port(0)
self.comment("Pattern expected to be 0xAA, and found to be {l:#x}.".format(l=leds))
if leds == 0xAA:
self.comment("Correct. 3/3")
return 3
else:
self.comment("Incorrect. 0/3")
return 0
class Prac10Tests:
def __init__(self, comment, submission_dir, src_name):
self.comment = comment
self.src_name = src_name
self.full_path_to_elf = None
self.submission_dir = submission_dir
def build(self):
self.comment("Changing dir to submission dir")
os.chdir(self.submission_dir)
all_files = os.listdir()
elf_files = [fi for fi in all_files if fi.endswith(".elf")]
if len(elf_files) > 0:
self.comment("Elf files exist before make run: {e}".format(e = all_files))
self.comment("Aborting")
return False
self.comment("Running 'make'")
make_proc = subprocess.Popen(["make"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
try:
return_code = make_proc.wait(timeout = 5)
except subprocess.TimeoutExpired:
make_proc.kill()
self.comment("Make did not complete after 5 seconds. Aborting")
return False
if (return_code != 0):
error_message = make_proc.communicate()
self.comment("Make failed. Awarding 0. Error message:")
self.comment(error_message[0].decode())
self.comment(error_message[1].decode())
return False
self.comment("Make succeeded. Attempting to link.")
self.comment("Searching submission directory for .elf files")
all_files = os.listdir()
elf_files = [fi for fi in all_files if fi.endswith(".elf")]
if len(elf_files) > 1:
self.comment("Too many elf files out of {e}".format(e = all_files))
return False
if len(elf_files) == 0:
self.comment("No elf files out of: {e}".format(e = all_files))
return False
self.comment("One elf file produced: {e}".format(e = elf_files[0]))
self.full_path_to_elf = self.submission_dir + "/" + elf_files[0]
return True
def run_tests(self):
mark = 0
self.comment("Starting to run prac 10 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
self.gdb.send_continue()
for test in [self.part1_tests, self.part2_tests, self.part3_tests, self.part4_tests, self.part5_tests]:
try:
mark += test()
except Exception as e:
self.comment("Unrecoverable exception while running test. Aborting")
self.comment(str(e))
self.comment(type(e))
break
self.ii.highz_pin(0)
self.ii.highz_pin(1)
self.ii.highz_pin(2)
self.ii.highz_pin(3)
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def part1_tests(self):
self.comment("=== Part 1 ===")
self.comment("Verifying timing between all patterns. Should be 1 second +-6%.")
pattern_array = [0x01, 0x02, 0x04, 0x08, 0x88, 0x48, 0x28, 0x18]
for i in range(1, len(pattern_array)+3, 2):
pat0 = pattern_array[i % len(pattern_array)]
pat1 = pattern_array[(i+1) % len(pattern_array)]
timing = round(self.ii.transition_timing(pat0, pat1), 3)
self.comment("Timing between {p0:#x} and {p1:#x} found to be: {t}".format(p0 = pat0, p1 = pat1, t = timing))
if timing < 1.0*0.88 or timing > 1*1.12:
self.comment("Timing out. Awarding 0.")
return 0
elif timing < 1.0*0.94 or timing > 1*1.06:
self.comment("Timing somewhat out. Awarding 1.")
return 1
self.comment("Correct. 2/2")
return 2
def part2_tests(self):
mark = 1
self.comment("=== Part 2 ===")
self.comment("Waiting until pattern 0x48 is displayed.")
t0 = time.time()
leds = self.ii.read_port(0)
while( (time.time() - t0 < 10.0) and leds != 0x48):
leds = self.ii.read_port(0)
if leds != 0x48:
self.comment("Could not find 0x48 after 10 seconds. Timeout. 0/2")
return 0
self.comment("Pattern 0x48 is now on LEDs. Asserting a 100 ms pulse on SW0")
self.ii.clear_pin(0)
time.sleep(0.1)
self.ii.highz_pin(0)
time.sleep(0.1)
pattern = self.ii.read_port(0)
self.comment("Pattern should now be 0x01 and is {p:#x}.".format(p = pattern))
if pattern != 0x01:
self.comment("Incorrect. 0/2")
return 0
self.comment("Correct. 1/2")
self.comment("Now holding SW0 down and ensuring that transitions occur.")
self.ii.clear_pin(0)
timing = round(self.ii.transition_timing(0x02, 0x04), 3)
self.ii.highz_pin(0)
if timing != -1:
self.comment("Transition successfully found with SW0 held. 2/2")
return 2
self.comment("No transition found with SW0 held. 1/2")
return 1
def part3_tests(self):
self.comment("=== Part 3 ===")
self.comment("Pulsing SW0 again to reset pattern to start.")
self.ii.clear_pin(0)
time.sleep(0.1)
self.ii.highz_pin(0)
time.sleep(0.1)
self.comment("Pulsing SW1 to change frequency to 2 Hz.")
self.ii.clear_pin(1)
time.sleep(0.1)
self.ii.highz_pin(1)
time.sleep(0.1)
self.comment("Now looking for transition from 0x04 to 0x08. Should be 0.5 seconds +- 6%")
timing = round(self.ii.transition_timing(0x04, 0x08), 3)
self.comment("Timing found to be: {t}".format(t = timing))
if timing < 0.5 * 0.9 or timing > 0.5 * 1.1:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Timing good. 2/2")
return 2
def part4_tests(self):
self.comment("=== Part 4 ===")
self.comment("Pulsing SW0 again to reset pattern to start.")
self.ii.clear_pin(0)
time.sleep(0.1)
self.ii.highz_pin(0)
time.sleep(0.1)
self.comment("Pulsing SW2 to change frequency to 5 Hz.")
self.ii.clear_pin(2)
time.sleep(0.1)
self.ii.highz_pin(2)
time.sleep(0.1)
self.comment("Now looking for transition from 0x04 to 0x08. Should be 0.2 seconds +- 6%")
timing = round(self.ii.transition_timing(0x04, 0x08), 3)
self.comment("Timing found to be: {t}".format(t = timing))
if timing < 0.2 * 0.9 or timing > 0.2 * 1.1:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Timing good. Now checking that Part 3 tests still work.")
if self.part3_tests() != 0:
self.comment("Part 3 tests still good, awarding part 4. 1/1")
return 1
self.comment("Part 3 tests seem broken. Awarding 0")
return 0
def part5_tests(self):
self.comment("=== Part 5 ===")
self.comment("Asserting SW3.")
self.ii.clear_pin(3)
self.comment("Applying 0V to both pot0 and pot1. Frequency should be 1 Hz.")
self.ii.write_dac(0)
self.ii.configure_dac_channel(0, 0)
self.ii.configure_dac_channel(1, 0)
self.comment("Pulsing SW0 and looking for timing from 0x02 to 0x04.")
self.ii.clear_pin(0)
time.sleep(0.1)
self.ii.highz_pin(0)
time.sleep(0.1)
timing = round(self.ii.transition_timing(0x02, 0x04), 3)
self.comment("Timing found to be: {t}".format(t = timing))
if timing < 1 * 0.9 or timing > 1 * 1.1:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Timing good.")
self.ii.write_dac(50) # v = 50/256 * 3.3 = 0.645 V
self.ii.configure_dac_channel(0, 1)
self.ii.configure_dac_channel(1, 0)
time.sleep(2)
self.comment("Asserting 0.65 V on pot0 and 0 V on pot 1. Timing should be 0.814 seconds")
self.comment("Pulsing SW0 and looking for timing from 0x02 to 0x04.")
self.ii.clear_pin(0)
time.sleep(0.1)
self.ii.highz_pin(0)
time.sleep(0.1)
timing = round(self.ii.transition_timing(0x02, 0x04), 3)
self.comment("Timing found to be: {t}".format(t = timing))
if timing < 0.814 * 0.9 or timing > 0.814 * 1.1:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Timing good.")
self.ii.write_dac(200) # v = 200/255 * 3.3 = 2.589 V
self.ii.configure_dac_channel(0, 0)
self.ii.configure_dac_channel(1, 1)
time.sleep(2)
self.comment("Asserting 2.589 V on pot1 and 0 V on pot 0. Timing should be 0.255 seconds")
self.comment("Pulsing SW0 and looking for timing from 0x02 to 0x04.")
self.ii.clear_pin(0)
time.sleep(0.1)
self.ii.highz_pin(0)
time.sleep(0.1)
timing = round(self.ii.transition_timing(0x02, 0x04), 3)
self.comment("Timing found to be: {t}".format(t = timing))
if timing < 0.255 * 0.9 or timing > 0.255 * 1.1:
self.comment("Timing out. Awarding 0")
return 0
self.comment("All timing good. 3/3")
return 3
class Prac4Tests:
def __init__(self, comment, submission_dir, src_name):
self.comment = comment
self.src_name = src_name
self.full_path_to_elf = None
self.submission_dir = submission_dir
def build(self):
print("building {f} in dir: {d}".format(f= self.src_name, d=self.submission_dir))
as_proc = subprocess.Popen(["arm-none-eabi-as", \
"-mcpu=cortex-m0", "-mthumb", "-g", \
"-o", self.submission_dir + "/main.o", \
self.submission_dir + "/" + self.src_name], \
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if (as_proc.wait() != 0):
error_message = as_proc.communicate()
self.comment("Compile failed. Awarding 0. Error message:")
self.comment(error_message[0].decode())
self.comment(error_message[1].decode())
return False
self.comment("Compile succeeded. Attempting to link.")
ld_proc = subprocess.Popen(["arm-none-eabi-ld", \
"-Ttext=0x08000000", \
"-o", self.submission_dir + "/main.elf", \
self.submission_dir + "/main.o"], \
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if (ld_proc.wait() != 0):
error_message = ld_proc.communicate()
self.comment("Link failed. Awarding 0. Error message:")
self.comment(error_message[0].decode())
self.comment(error_message[1].decode())
return False
self.full_path_to_elf = self.submission_dir + "/main.elf"
self.comment("Link succeeded")
return True
def run_tests(self):
mark = 0
self.comment("Starting to run prac 4 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
self.comment("=== Part 1 ===")
mark += self.part1_tests()
self.comment("===Part 2 ===")
mark += self.part2_tests()
self.comment("Sending 'continue' to allow code to free-run")
self.gdb.send_continue()
self.comment("=== Part 3 ===")
mark += self.part3_tests()
self.comment("=== Part 4 ===")
mark += self.part4_tests()
self.comment("=== Part 5 ===")
mark += self.part5_tests()
self.ii.highz_pin(0)
self.ii.highz_pin(1)
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def part1_tests(self):
if self.gdb.run_to_label("copy_to_RAM_complete") == False:
self.comment("Could not hit label 'copy_to_RAM_complete'. Aborting")
return 0
self.comment("Verifying array in RAM")
for idx, val in enumerate(data_array):
address = 0x20000000 + (4*idx)
data_in_RAM = self.gdb.read_word(address)
if data_in_RAM != val:
self.comment("Data at address {addr:#x} should be {v:#x} but is {d:#x}".format(addr = address, v = val, d = data_in_RAM))
return 0
self.comment("Data correct in RAM. 3/3")
return 3
def part2_tests(self):
if self.gdb.run_to_label("increment_of_bytes_complete") == False:
self.comment("Could not hit label 'increment_of_bytes_complete'. Aborting")
return 0
self.comment("Verifying incremented array in RAM")
mark_to_return = 2
for idx, val in enumerate(data_array):
address = 0x20000000 + (4*idx)
data_in_RAM = self.gdb.read_word(address)
for byte_offset in range(0, 3):
# add one at the correct place, then shift the byte of interest down to LSB and select with mask
val_byte = ((val + (1 << (byte_offset * 8))) >> (byte_offset * 8)) & 0xFF
data_byte = ((data_in_RAM ) >> (byte_offset * 8)) & 0xFF
if val_byte != data_byte:
self.comment("Data at address {addr:#x} should be {v:#x} but is {d:#x}".format( \
addr = address + byte_offset, v = val_byte, d = data_byte))
self.comment("Aborting verification phase. 0/2")
mark_to_return = 0
break
if mark_to_return == 2:
self.comment("Data correct in RAM. 2/2")
self.comment("Now modifying data in RAM. Setting all words to 0x88888888")
for word_offset in range(0, len(data_array)):
word_addr = 0x20000000 + (word_offset*4)
self.gdb.write_word(word_addr, 0x88888888)
self.comment("Setting address 0x2000000C0 to 0x8870FA05")
self.comment("This implies a max unsigned of 0xFA, min unsigned of 0x05 and max signed of 0x70")
self.gdb.write_word(0x20000008, 0x8870FA05)
return mark_to_return
def part3_tests(self):
# simulate SW1 and not SW0. Should be flashing AA,55 at 0.25 seconds
self.ii.highz_pin(0)
self.ii.highz_pin(1)
time.sleep(0.5)
self.comment("Releasing both SW0 and SW1")
led_data = self.ii.read_port(0)
self.comment("Data on LEDs should be max unsigned (0xFA), and found to be {d:#X}".format(d=led_data))
if led_data != 0xFA:
self.comment("Incorrect. 0/3")
return 0
self.comment("Part 3 correct. 3/3")
return 3
def part4_tests(self):
# simulate SW1 and not SW0. Should be flashing AA,55 at 0.25 seconds
self.ii.clear_pin(0)
self.ii.highz_pin(1)
time.sleep(0.5)
self.comment("Pressing SW0 and releasing SW1")
led_data = self.ii.read_port(0)
self.comment("Data on LEDs should be min unsigned (0x05), and found to be {d:#X}".format(d=led_data))
if led_data != 0x05:
self.comment("Incorrect. 0/2")
return 0
self.comment("Part 4 correct. 2/2")
return 2
def part5_tests(self):
# simulate SW1 and not SW0. Should be flashing AA,55 at 0.25 seconds
self.ii.highz_pin(0)
self.ii.clear_pin(1)
time.sleep(0.5)
self.comment("Releasing SW0 and pressing SW1")
led_data = self.ii.read_port(0)
self.comment("Data on LEDs should be max signed (0x70), and found to be {d:#X}".format(d=led_data))
if led_data != 0x70:
self.comment("Incorrect. 0/1")
return 0
self.comment("Part 5 correct. 1/1")
return 1
class Prac9Tests:
def __init__(self, comment, submission_dir, src_name):
self.comment = comment
self.src_name = src_name
self.full_path_to_elf = None
self.submission_dir = submission_dir
def build(self):
self.comment("Changing dir to submission dir")
os.chdir(self.submission_dir)
all_files = os.listdir()
elf_files = [fi for fi in all_files if fi.endswith(".elf")]
if len(elf_files) > 0:
self.comment("Elf files exist before make run: {e}".format(e = all_files))
self.comment("Aborting")
return False
self.comment("Running 'make'")
make_proc = subprocess.Popen(["make"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
try:
return_code = make_proc.wait(timeout = 5)
except subprocess.TimeoutExpired:
make_proc.kill()
self.comment("Make did not complete after 5 seconds. Aborting")
return False
if (return_code != 0):
error_message = make_proc.communicate()
self.comment("Make failed. Awarding 0. Error message:")
self.comment(error_message[0].decode())
self.comment(error_message[1].decode())
return False
self.comment("Make succeeded. Attempting to link.")
self.comment("Searching submission directory for .elf files")
all_files = os.listdir()
elf_files = [fi for fi in all_files if fi.endswith(".elf")]
if len(elf_files) > 1:
self.comment("Too many elf files out of {e}".format(e = all_files))
return False
if len(elf_files) == 0:
self.comment("No elf files out of: {e}".format(e = all_files))
return False
self.comment("One elf file produced: {e}".format(e = elf_files[0]))
self.full_path_to_elf = self.submission_dir + "/" + elf_files[0]
return True
def run_tests(self):
mark = 0
self.comment("Starting to run prac 9 tests")
self.ii = InterrogatorInterface()
self.comment(self.ii.comms_test())
self.ii.reset(0) # pull line low. This does a reset
with OpenOCD(self.comment) as self.openocd:
time.sleep(0.2)
self.ii.reset(1) # release line. Allows OpenOCD to establish connection to core.
with GDBInterface(self.full_path_to_elf, self.comment) as self.gdb:
self.gdb.open_file()
self.gdb.connect()
self.gdb.erase()
self.gdb.load()
self.gdb.send_continue()
for test in [self.part1_tests, self.part2_tests, self.part3_tests]:
try:
mark += test()
except Exception as e:
self.comment("Unrecoverable exception while running test. Aborting")
self.comment(str(e))
break
if mark == 7:
mark += self.bonus_tests()
else:
self.comment("Not attempting bonus due to previous errors")
self.ii.highz_pin(0)
self.ii.highz_pin(1)
self.ii.highz_pin(2)
self.ii.highz_pin(3)
self.comment("All tests complete. Mark: {m}".format(m=mark))
return mark
def part1_tests(self):
self.comment("=== Part 1 ===")
self.comment("Releasing both SW2 and SW3")
self.ii.highz_pin(2)
self.ii.highz_pin(3)
time.sleep(2)
current_pattern = self.ii.read_port(0)
timing = self.ii.transition_timing(current_pattern + 2, current_pattern + 3)
self.comment("Timing between an increment expected to be 0.5 and found to be: {t}".format(t = round(timing, 2)))
if timing < 0.46 or timing > 0.54:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Correct. 2/2")
return 2
def part2_tests(self):
self.comment("=== Part 2 ===")
self.comment("Releasing SW2 and pressing SW3")
self.ii.highz_pin(2)
self.ii.clear_pin(3)
time.sleep(0.6)
current_pattern = self.ii.read_port(0)
timing = self.ii.transition_timing(current_pattern - 2, current_pattern - 3)
self.comment("Timing between a decrement expected to be 0.5 and found to be: {t}".format(t = round(timing, 2)))
if timing < 0.47 or timing > 0.53:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Correct. 1/1")
self.ii.highz_pin(2)
self.ii.highz_pin(3)
return 2
def part3_tests(self):
self.comment("=== Part 3 ===")
self.comment("Pressing SW2 and releasing SW3")
self.ii.clear_pin(2)
self.ii.highz_pin(3)
self.comment("Asserting 0.52 V on port A6. Period should become 0.16 seconds.")
self.ii.write_dac(40)
time.sleep(1)
current_pattern = self.ii.read_port(0)
timing = self.ii.transition_timing(current_pattern + 4, current_pattern + 5)
self.comment("Timing between an increment found to be: {t}".format(t = round(timing, 2)))
if timing < 0.14 or timing > 0.18:
self.comment("Timing out. Awarding 0")
return 0
self.comment("Pressing SW2 and pressing SW3")
self.ii.clear_pin(2)
self.ii.clear_pin(3)
self.comment("Asserting 1.93 V on port A6. Period should become 0.33 seconds.")
self.ii.write_dac(150)
time.sleep(1)
current_pattern = self.ii.read_port(0)
timing = self.ii.transition_timing(current_pattern - 4, current_pattern - 5)
self.comment("Timing between an decrement found to be: {t}".format(t = round(timing, 2)))
if timing < 0.30 or timing > 0.36:
self.comment("Timing out. Awarding 0")
return 0
return 3
def bonus_tests(self):
self.comment("=== Bonus ===")
self.comment("Releasing SW2 and SW3.")
self.ii.highz_pin(2)
self.ii.highz_pin(3)
time.sleep(1)
value_before_rst = self.ii.read_port(0)
self.ii.reset(0)
self.comment("Value on LEDs before reset: {leds:#x}".format(leds = value_before_rst))
self.comment("Pulling NRST line low and sleeping for 2 seconds.")
time.sleep(2)
self.comment("Releasing NSRT line and sleeping for 100 ms")
self.ii.reset(1)
time.sleep(0.1)
value_after_rst = self.ii.read_port(0)
self.comment("Value on LEDs after reset: {leds:#x}".format(leds = value_after_rst))
if value_before_rst != value_after_rst:
self.comment("Values different. 0/0")
return 0
self.comment("Bonus correct! 1/0")
return 1