52 lines
1.1 KiB
Python
52 lines
1.1 KiB
Python
from panda import Panda
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from nose.tools import timed, assert_equal, assert_less, assert_greater
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import time
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import os
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def connect_wo_esp():
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# connect to the panda
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p = Panda()
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# power down the ESP
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p.set_esp_power(False)
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return p
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# clear old junk
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while len(p.can_recv()) > 0:
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pass
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def connect_wifi():
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p = Panda()
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ssid, pw = p.get_serial()
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ssid = ssid.strip("\x00")
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assert(ssid.isalnum())
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assert(pw.isalnum())
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ssid = "panda-" + ssid
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# Mac OS X only
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# TODO: Ubuntu
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os.system("networksetup -setairportnetwork en0 %s %s" % (ssid, pw))
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def time_many_sends(p, bus, precv=None, msg_count=100):
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if precv == None:
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precv = p
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st = time.time()
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p.can_send_many([(0x1aa, 0, "\xaa"*8, bus)]*msg_count)
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r = []
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while len(r) < (msg_count*2) and (time.time() - st) < 3:
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r.extend(precv.can_recv())
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sent_echo = filter(lambda x: x[3] == 0x80 | bus, r)
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loopback_resp = filter(lambda x: x[3] == bus, r)
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assert_equal(len(sent_echo), msg_count)
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assert_equal(len(loopback_resp), msg_count)
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et = (time.time()-st)*1000.0
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comp_kbps = (1+11+1+1+1+4+8*8+15+1+1+1+7)*msg_count / et
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return comp_kbps
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