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import visa
import time
import sys
def test_idn():
idn = inst.query("*idn?");
assert idn == "TinyUSB,ModelNumber,SerialNumber,FirmwareVer123456\r\n"
def test_echo(m,n):
longstr = "0123456789abcdefghijklmnopqrstuvwxyz" * 50
#Next try echo from 1 to 175 characters (200 is max buffer size on DUT)
for i in range(m,n):
#print(i)
x = longstr[0:i]
xt = x + inst.write_termination
y = inst.query(x)
#print(x)
#print (":".join("{:02x}".format(ord(c)) for c in xt))
#print (":".join("{:02x}".format(ord(c)) for c in y))
assert(xt == y), f"failed i={i}"
inst.read_stb();# Just to make USB logging easier by sending a control query
def test_mav():
assert (inst.read_stb() == 0)
inst.write("123")
time.sleep(0.3)
assert (inst.read_stb() & 0x10), "MAV not set after 0.5 seconds"
rsp = inst.read()
assert(rsp == "123\r\n")
def test_srq():
assert (inst.read_stb() == 0)
inst.write("123")
#inst.enable_event(visa.constants.VI_EVENT_SERVICE_REQ, visa.constants.VI_QUEUE)
#waitrsp = inst.wait_on_event(visa.constants.VI_EVENT_SERVICE_REQ, 5000)
#inst.discard_events(visa.constants.VI_EVENT_SERVICE_REQ, visa.constants.VI_QUEUE)
#inst.wait_for_srq()
time.sleep(0.3)
stb = inst.read_stb()
msg = "SRQ not set after 0.5 seconds, was {:02x}".format(stb)
assert (stb == 0x50),msg
assert (inst.read_stb() == 0x10), "SRQ set at second read!"
rsp = inst.read()
assert(rsp == "123\r\n")
rm = visa.ResourceManager("/c/Windows/system32/visa64.dll")
reslist = rm.list_resources("USB?::?*::INSTR")
print(reslist)
if (len(reslist) == 0):
sys.exit()
inst = rm.open_resource(reslist[0]);
inst.timeout = 3000
inst.clear()
#print("+ IDN")
#test_idn()
print("+ random trigger")
#inst.assert_trigger();
print("+ echo delay=0")
inst.write("delay 0")
test_echo(1,175)
print("+ echo delay=2")
inst.write("delay 2")
test_echo(1,175)
print("+ echo delay=200")
inst.write("delay 200")
test_echo(50,90)
test_echo(165,170)
print("+ MAV")
test_mav()
print("+ SRQ")
test_srq()
inst.close()
print("Test complete")
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