jeffreyg3
commented
4 years ago Hello talha74,
The logger example does write one value per column when set to > 1 channel.
What you are seeing is a country configuration issue. In the U.S., the decimal point or dot (".") is used in floating point to denote the part of a value < 1 where in Europe et. al., the comma (",") is used.
U.S.:
Channel 1, Channel 2, Channel 3
1.75754, 1.4548, 1,54151
Conversely, the comma is used in Excel and libra to separate one reading from another.
Europe:
1,75754 1,4548 1,54151
That is why there is a file type known as .csv (comma separated values)
You would need to adjust your system settings to comply with this, or when opening a log file remember to specify the column separator or make changes to the log_file.c (you guessed correctly). See line 184 of that file (shown here): sprintf(buf,"%2.6lf,", read_buf[scan_start_index+j]);
in particular, the section "%2.6lf," is the formatting of the acquired reading, 2 digits before the decimal and 6 digits after. if you change the "," after the "lf" to a "." or colon or space it will place that character between values. Then when you open the file, set the separator option to the same character you chose.
talha74
Hey, I want to scan for example 3 or 4 channels with the C-Program "logger.c". But if I activate more than one channel, the values get written in one column. So there is: Column 1: Channel 1 Channel 2 Channel 3 1,75754 1,4548 1,54151 1,4844 1,5895 1,54651 ... ... ...
But I wan to get: Column1 Column2 Channel 1 Channel 2 1,54161 1,78974 1,55135 1,5654 ... ....
So which files do I have to modify. I found some interesting spots in "log_file.c", but ehich parts do I have to modify?