def __init__(self, sfe_ip):
count_num = 0
while True:
try:
rm = pyvisa.ResourceManager()
specan = rm.open_resource('TCPIP::{}::INSTR'.format(sfe_ip))
self.specan = specan
del self.specan.timeout
break
except:
count_num = count_num + 1
print("SFE connection error")
logging.info('SFE connection error')
time.sleep(10)
print count_num
if count_num >= 3:
en = ekt_relay.EktRelay()
en.relay_off_sfe()
time.sleep(5)
en.relay_on_sfe()
time.sleep(180)
del en
sfe_ip = ekt_cfg.SFE_IP
specan = Ektsfe(sfe_ip)
specan.set_modulation_modulation_source("DTV")
net = ekt_net.EktNetClient(ekt_cfg.FRONT_END_SERVER_IP, ekt_cfg.FRONT_END_SERVER_PORT)
net.send_data(json.dumps({"cmd": "set_sfe_state", "sfe_state": "crash"}))
time.sleep(0.5)
del net
FREQUENCY_LEVEL_OFFSET = LOCK_PARAMETER[1]
specan = Ektsfu(sfu_ip)
specan.set_digitaltv_coding_symbolrate_dvbs2(SYMBOL_RATE[0])
specan = Ektsfu(sfu_ip)
specan.set_noise_settings_receiver("{}e6".format(
str(SYMBOL_RATE[2] * 1.2)))
specan = Ektsfu(sfu_ip)
specan.set_frequency_frequency_frequency(
str(FREQUENCY_LEVEL_OFFSET[0]) + "MHz")
time.sleep(1)
specan = Ektsfu(sfu_ip)
specan.set_level_level_offset(str(FREQUENCY_LEVEL_OFFSET[1]))
specan = Ektsfu(sfu_ip)
specan.set_level_level_level("dBm", "-50")
net = ekt_net.EktNetClient(ekt_cfg.FRONT_END_SERVER_IP,
ekt_cfg.FRONT_END_SERVER_PORT)
net.send_data(
json.dumps({
"cmd": "set_frequency_data",
"frequency": str(FREQUENCY_LEVEL_OFFSET[0])
}))
time.sleep(1)
del net
net = ekt_net.EktNetClient(ekt_cfg.FRONT_END_SERVER_IP,
ekt_cfg.FRONT_END_SERVER_PORT)
net.send_data(
json.dumps({
"cmd": "set_symbol_rate_data",
"symbol_rate": str(SYMBOL_RATE[1])
}))
time.sleep(1)