Syntax help

[p.erasmus]

Hi Team.

in a normal C programming project I can define a number with and exponent like

#define _GAINFACTOR 1.87e-6
const GAIN = 1.87e-6

what is the recommend way in Flowcode , trying to create a constant with 187e-6 did not work or even 187exp(-6)
All help and pointers are appreciated

[mnfisher]

You could put it as a normal decimal?

0.000187

The form given is slightly odd - normally would be 1.87e-6 ?

Martin

[p.erasmus]

Martin

The form given is slightly odd - normally would be 1.87e-6 ?

You are correct with that it is the old diabetes eyes miss such things lately

Yes I use the decimal form just thought there is a elegant way in Flowcode

[p.erasmus]

Hi Team.

I am struggling to understand how to compliment a byte a 16 bit variable ,
the value in the 16 bit variable is the two's compliment therefore it is necessary to subtract one from it and then do a compliment

I have been using this in CX8 in MPLAB by

int a = 10; /* 10 = 1010 */
int c = 0;
c = ~(a);

How can I do this in FC or even better obtaining the value from a two's compliment value with out the use of a C call

[Steve-Matrix]

In a calculation, the operator "NOT" is the ~ operator. It works in simulation and here's the code Flowcode produces.

Code: Select all

    // Name: Calculation, Type: Calculation:
    // a = 10
    // c = 0
    FCV_A = 10;
    FCV_C = 0;

    // Name: Calculation, Type: Calculation:
    // c = NOT (a)
    FCV_C = ~(FCV_A);

You might need to ensure you use unsigned bytes or unsigned ints.

[p.erasmus]

Thank you Steve.
Appreciate your help

[p.erasmus]

HI Steve,
A big thank you this worked great ,I am very happy see positive and negative temperature from the ADS1118 over SPI