No changes between revisions
| /Designs/Measuring_instruments/RMDS02C/SW/Host_controller/frequency_log.py |
|---|
| 0,0 → 1,76 |
| #!/usr/bin/python |
| # |
| # Sample of measiring and correct frequency with ACOUNTER02A |
| import time |
| import datetime |
| import sys |
| from pymlab import config |
| #### Script Arguments ############################################### |
| if (len(sys.argv) > 3) or (len(sys.argv) < 2): |
| sys.stderr.write("Invalid number of arguments.\n") |
| sys.stderr.write("Usage: %s PORT_ADDRESS [REQUIERED_MHz]\n" % (sys.argv[0], )) |
| sys.exit(1) |
| port = eval(sys.argv[1]) |
| #### Sensor Configuration ########################################### |
| cfg = config.Config( |
| port = port, |
| bus = [ |
| { |
| "type": "i2chub", |
| "address": 0x70, |
| "children": [ |
| { "name":"counter", "type":"acount02", "channel": 2, }, |
| { "name":"clkgen", "type":"clkgen01", "channel": 5, }, |
| ], |
| }, |
| ], |
| ) |
| cfg.initialize() |
| print "Frequency counter readout example \r\n" |
| fcount = cfg.get_device("counter") |
| fgen = cfg.get_device("clkgen") |
| time.sleep(0.5) |
| frequency = fcount.get_freq() |
| rfreq = fgen.get_rfreq() |
| hsdiv = fgen.get_hs_div() |
| n1 = fgen.get_n1_div() |
| fdco = 0 |
| fxtal = 0 |
| regs = [0, 0, 0] |
| #### Data Logging ################################################### |
| try: |
| with open("frequency.log", "a") as f: |
| while True: |
| now = datetime.datetime.now() |
| if (now.second == 15) or (now.second == 35) or (now.second == 55): |
| frequency = fcount.get_freq() |
| if (len(sys.argv) == 3): |
| regs = fgen.set_freq(frequency/1e6, float(eval(sys.argv[2]))) |
| now = datetime.datetime.now() |
| rfreq = fgen.get_rfreq() |
| hsdiv = fgen.get_hs_div() |
| n1 = fgen.get_n1_div() |
| fdco = (frequency/1e6) * hsdiv * n1 |
| fxtal = fdco / rfreq |
| sys.stdout.write("frequency: " + str(frequency) + " Hz Time: " + str(now.second)) |
| sys.stdout.write(" RFREQ: " + str(rfreq) + " HSDIV: " + str(hsdiv) + " N1: " + str(n1)) |
| sys.stdout.write(" fdco: " + str(fdco) + " fxtal: " + str(fxtal) + "\r") |
| f.write("%d\t%s\t%.3f\n" % (time.time(), datetime.datetime.now().isoformat(), frequency)) |
| sys.stdout.flush() |
| time.sleep(0.9) |
| except KeyboardInterrupt: |
| sys.stdout.write("\r\n") |
| sys.exit(0) |
| f.close() |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |