openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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import time
from panda import Panda
from .helpers import start_heartbeat_thread, reset_pandas, time_many_sends, connect_wifi, test_white, panda_type_to_serial
# Reset the pandas before running tests
def aaaa_reset_before_tests():
reset_pandas()
@test_white
@panda_type_to_serial
def test_get_serial_wifi(serials=None):
connect_wifi(serials[0])
p = Panda("WIFI")
print(p.get_serial())
@test_white
@panda_type_to_serial
def test_throughput(serials=None):
connect_wifi(serials[0])
p = Panda(serials[0])
# Start heartbeat
start_heartbeat_thread(p)
# enable output mode
p.set_safety_mode(Panda.SAFETY_ALLOUTPUT)
# enable CAN loopback mode
p.set_can_loopback(True)
p = Panda("WIFI")
for speed in [100,250,500,750,1000]:
# set bus 0 speed to speed
p.set_can_speed_kbps(0, speed)
time.sleep(0.1)
comp_kbps = time_many_sends(p, 0)
# bit count from https://en.wikipedia.org/wiki/CAN_bus
saturation_pct = (comp_kbps/speed) * 100.0
#assert_greater(saturation_pct, 80)
#assert_less(saturation_pct, 100)
print("WIFI loopback 100 messages at speed %d, comp speed is %.2f, percent %.2f" % (speed, comp_kbps, saturation_pct))
@test_white
@panda_type_to_serial
def test_recv_only(serials=None):
connect_wifi(serials[0])
p = Panda(serials[0])
# Start heartbeat
start_heartbeat_thread(p)
p.set_safety_mode(Panda.SAFETY_ALLOUTPUT)
p.set_can_loopback(True)
pwifi = Panda("WIFI")
# TODO: msg_count=1000 drops packets, is this fixable?
for msg_count in [10,100,200]:
speed = 500
p.set_can_speed_kbps(0, speed)
comp_kbps = time_many_sends(p, 0, pwifi, msg_count)
saturation_pct = (comp_kbps/speed) * 100.0
print("HT WIFI loopback %d messages at speed %d, comp speed is %.2f, percent %.2f" % (msg_count, speed, comp_kbps, saturation_pct))