Search found 14 matches

I'll assume he's measuring line frequency as his acquisition loop is about 33ms.

Just thinking about a simple way with current data...

One somewhat inaccurate method to get a rough frequency wou ...

I have hooked up a function generator to pin A1 to get the various values for the sinewave. I have found the amplitude and the RMS value already. I want to write code to find the frequency of the sine ...

How much harmonic purity do you need?
How much frequency accuracy?
How much jitter can you stand?
Is this a school assignment " i did it" project
or for a " real thing" ?
...

Do you have to use that PIC ? It doesn't have a built-in DAC. If you use
the 18F46K22, it has a DAC with 32 levels.

Yeah I have to use that PIC for this :/

I am using a PIC18f6722 microcontroller and I want to generate a sine wave at 60Hz. The complier I am using is CCS C. I have the PIC hooked up to a function generator so I can see the sine wave on the ...

Maybe it's a Labview problem?

try disconnecting the PIC from the PC, see what happens when you enter 65 ..

try a terminal program like RealTerm ,see what happens...

what's the hardware betwee ...

Thanks! It works! If I wanted to input numbers from LabView instead of
use "125" would I need to do get_float() instead of "125"?
get_float() requires that the incoming ASCII ...

The following program compiles and runs in MPLAB vs. 8.92 simulator.
It displays the following output, and it's correct (25 * 25) / 125 = 5
5.000
It doesn't do any keyboard input, but that's easi ...

Post the complete test program, not just the code in main(). Post the
#include line for the PIC, #fuses, #use delay(), #use rs232(), any other
#include lines, and global variables, and then the ma ...

Er.

strcpy(arr, "125"); //The array 'arr' in memory is now '1' '2' '5' '\0'
P = atof(arr); //P now =125.0

//P = (V*V)/(c); //You now throw away P!... ...

Hey guys, I am trying to convert an array of characters to float, do a calculation and then convert that back into chars and then print out the result. I am inputting the resistor value on LabView and ...

Hey guys, I am trying to put getc() in a array and convert the string to a floating point number. So far, I have this:

void main() {
int c;
int count;
char arr[5 ...

Basic C. Get a textbook!...

You need to read a sequence of characters, decode these to a number, and then do the maths.

gets, rather than getc, and then look at atof and it's other derivatives. ...

Hey guys, I am trying to get a floating point number from labview to calculate power. However, my program in labview only accepts chars and strings. Here is my code in CCS so far:

void main( ...