Jul-23-2018, 12:18 AM
Hi,
I have a project to log raw binary GPS data (from a ublox GPS reciever) to a file for later post processing. The receiver puts out raw GPS data message packets (not the NMEA sentences - these have been disabled). The problem i am having is that when i read and log the data to a file the resulting binary file is not the same as the data that i read from. For example if read and log using a terminal program like "cutecom" it works fine so there is obviously something wrong with my code.
The following code simply reads a byte into an array and then logs it to a file as a test:
Any help is much appreciated.
Cheers.
I have a project to log raw binary GPS data (from a ublox GPS reciever) to a file for later post processing. The receiver puts out raw GPS data message packets (not the NMEA sentences - these have been disabled). The problem i am having is that when i read and log the data to a file the resulting binary file is not the same as the data that i read from. For example if read and log using a terminal program like "cutecom" it works fine so there is obviously something wrong with my code.
The following code simply reads a byte into an array and then logs it to a file as a test:
import serial
import time
import pickle
def setupSerial(GPSPort):
ser = serial.Serial(port=GPSPort,baudrate=115200,bytesize=8,parity='N',stopbits=1,xonxoff=0,rtscts=0)
print(ser) #testing
return ser
GPSPort="/dev/ttyUSB0"
ser = setupSerial(GPSPort)
newFileBytes=[]
for x in range(1000):
y = ser.inWaiting()
print(y)
if y > 0:
z=ser.read()
print(z)
newFileBytes.append(z)
with open("~/GPSBinTest.ubx","wb") as mypicklefile:
pickle.dump(newFileBytes, mypicklefile)Can anybody see what i am doing wrong here.Any help is much appreciated.
Cheers.
