serial write a command and print output to file












1















I am new to serial programming in Python. Basically, doing the same command I would do in Putty or some other terminal. Get output from Putty after running command "dz 0x80000000 4096" to a TiVa processor but not with Python3.6.5 program I wrote below. Get no output as if it didn't write the command. Also didn’t print output to screen after running the write command.



Program below:



    import logging
import serial
import serial.threaded
import threading
import time
timeout = time.time() + 15 #may have to adjust, 10 seconds from now
import sys
import csv
from datetime import datetime


ser= serial.Serial('COM19', baudrate = 115200,parity=serial.PARITY_NONE,


stopbits=serial.STOPBITS_ONE,bytesize=serial.EIGHTBITS,rtscts=True,timeout=2,writeTimeout=5)



    def getvalues():
ser.write(b'dz 0x80000000 4096') #printed 18, not sure if it ran the command?
IQ_data = ser.readline().decode('ascii')
return IQ_data


while(1):

with open("E:/HigherGround_Home/Pyserial_Gurb/log.txt","w") as f:
writer = csv.writer(f)
writer.writerow(getvalues())
if time.time() > timeout:
break
f.close()


Can someone please help me get my program to correctly print to a file?



Thanks,
Gurb










share|improve this question

























  • Reading and Writing Files in Python

    – Robert Harvey
    Nov 21 '18 at 2:09
















1















I am new to serial programming in Python. Basically, doing the same command I would do in Putty or some other terminal. Get output from Putty after running command "dz 0x80000000 4096" to a TiVa processor but not with Python3.6.5 program I wrote below. Get no output as if it didn't write the command. Also didn’t print output to screen after running the write command.



Program below:



    import logging
import serial
import serial.threaded
import threading
import time
timeout = time.time() + 15 #may have to adjust, 10 seconds from now
import sys
import csv
from datetime import datetime


ser= serial.Serial('COM19', baudrate = 115200,parity=serial.PARITY_NONE,


stopbits=serial.STOPBITS_ONE,bytesize=serial.EIGHTBITS,rtscts=True,timeout=2,writeTimeout=5)



    def getvalues():
ser.write(b'dz 0x80000000 4096') #printed 18, not sure if it ran the command?
IQ_data = ser.readline().decode('ascii')
return IQ_data


while(1):

with open("E:/HigherGround_Home/Pyserial_Gurb/log.txt","w") as f:
writer = csv.writer(f)
writer.writerow(getvalues())
if time.time() > timeout:
break
f.close()


Can someone please help me get my program to correctly print to a file?



Thanks,
Gurb










share|improve this question

























  • Reading and Writing Files in Python

    – Robert Harvey
    Nov 21 '18 at 2:09














1












1








1








I am new to serial programming in Python. Basically, doing the same command I would do in Putty or some other terminal. Get output from Putty after running command "dz 0x80000000 4096" to a TiVa processor but not with Python3.6.5 program I wrote below. Get no output as if it didn't write the command. Also didn’t print output to screen after running the write command.



Program below:



    import logging
import serial
import serial.threaded
import threading
import time
timeout = time.time() + 15 #may have to adjust, 10 seconds from now
import sys
import csv
from datetime import datetime


ser= serial.Serial('COM19', baudrate = 115200,parity=serial.PARITY_NONE,


stopbits=serial.STOPBITS_ONE,bytesize=serial.EIGHTBITS,rtscts=True,timeout=2,writeTimeout=5)



    def getvalues():
ser.write(b'dz 0x80000000 4096') #printed 18, not sure if it ran the command?
IQ_data = ser.readline().decode('ascii')
return IQ_data


while(1):

with open("E:/HigherGround_Home/Pyserial_Gurb/log.txt","w") as f:
writer = csv.writer(f)
writer.writerow(getvalues())
if time.time() > timeout:
break
f.close()


Can someone please help me get my program to correctly print to a file?



Thanks,
Gurb










share|improve this question
















I am new to serial programming in Python. Basically, doing the same command I would do in Putty or some other terminal. Get output from Putty after running command "dz 0x80000000 4096" to a TiVa processor but not with Python3.6.5 program I wrote below. Get no output as if it didn't write the command. Also didn’t print output to screen after running the write command.



Program below:



    import logging
import serial
import serial.threaded
import threading
import time
timeout = time.time() + 15 #may have to adjust, 10 seconds from now
import sys
import csv
from datetime import datetime


ser= serial.Serial('COM19', baudrate = 115200,parity=serial.PARITY_NONE,


stopbits=serial.STOPBITS_ONE,bytesize=serial.EIGHTBITS,rtscts=True,timeout=2,writeTimeout=5)



    def getvalues():
ser.write(b'dz 0x80000000 4096') #printed 18, not sure if it ran the command?
IQ_data = ser.readline().decode('ascii')
return IQ_data


while(1):

with open("E:/HigherGround_Home/Pyserial_Gurb/log.txt","w") as f:
writer = csv.writer(f)
writer.writerow(getvalues())
if time.time() > timeout:
break
f.close()


Can someone please help me get my program to correctly print to a file?



Thanks,
Gurb







serial-port






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 21 '18 at 3:46







user3313975

















asked Nov 21 '18 at 2:06









user3313975user3313975

62




62













  • Reading and Writing Files in Python

    – Robert Harvey
    Nov 21 '18 at 2:09



















  • Reading and Writing Files in Python

    – Robert Harvey
    Nov 21 '18 at 2:09

















Reading and Writing Files in Python

– Robert Harvey
Nov 21 '18 at 2:09





Reading and Writing Files in Python

– Robert Harvey
Nov 21 '18 at 2:09












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