70 lines
1.5 KiB
Python
70 lines
1.5 KiB
Python
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import visa
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import time
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import sys
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def test_idn():
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idn = inst.query("*idn?");
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assert idn == "TinyUSB,ModelNumber,SerialNumber,FirmwareVer123456\r\n"
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def test_echo():
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longstr = "0123456789abcdef" * 50
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#Next try echo from 1 to 175 characters (200 is max buffer size on DUT)
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for i in range(49,175):
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x = longstr[0:i]
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xt = x + inst.write_termination
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y = inst.query(x)
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assert(xt == y), f"echo {i}"
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def test_mav():
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assert (inst.read_stb() == 0)
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inst.write("123")
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time.sleep(0.3)
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assert (inst.read_stb() & 0x10), "MAV not set after 0.5 seconds"
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rsp = inst.read()
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assert(rsp == "123\r\n")
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def test_srq():
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assert (inst.read_stb() == 0)
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inst.write("123")
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#inst.enable_event(visa.constants.VI_EVENT_SERVICE_REQ, visa.constants.VI_QUEUE)
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#waitrsp = inst.wait_on_event(visa.constants.VI_EVENT_SERVICE_REQ, 5000)
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#inst.discard_events(visa.constants.VI_EVENT_SERVICE_REQ, visa.constants.VI_QUEUE)
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#inst.wait_for_srq()
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time.sleep(0.3)
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stb = inst.read_stb()
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msg = "SRQ not set after 0.5 seconds, was {:02x}".format(stb)
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assert (stb == 0x50),msg
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assert (inst.read_stb() == 0x10), "SRQ set at second read!"
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rsp = inst.read()
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assert(rsp == "123\r\n")
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rm = visa.ResourceManager("/c/Windows/system32/visa64.dll")
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reslist = rm.list_resources("USB?::?*::INSTR")
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print(reslist)
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if (len(reslist) == 0):
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sys.exit()
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inst = rm.open_resource(reslist[0]);
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inst.timeout = 3000
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inst.clear()
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#print(idn);
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inst.clear()
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test_idn()
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test_echo()
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test_mav()
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test_srq()
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inst.close()
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print("Test complete")
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