Erik - / Mbed 2 deprecated FastIO_TestBench

Testbench for FastIO

Dependencies:   FastIO mbed

Fork of FastIO by Igor Skochinsky

main.cpp@1:8064f8b8cf82, 2010-05-22 (annotated)

Committer:
igorsk
Date:
Sat May 22 22:58:38 2010 +0000
Revision:
1:8064f8b8cf82
Parent:
0:f1e54c45ccaf
Child:
3:8d217a0bb245

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


igorsk

0:f1e54c45ccaf


     1

#include "mbed.h"





igorsk

0:f1e54c45ccaf


     2







igorsk

1:8064f8b8cf82


     3

#include "FastIO.h"





igorsk

1:8064f8b8cf82


     4







igorsk

1:8064f8b8cf82


     5

#define LED_MASK 0x07800000





igorsk

0:f1e54c45ccaf


     6







igorsk

0:f1e54c45ccaf


     7

DigitalOut led1(LED1);





igorsk

0:f1e54c45ccaf


     8

FastOut<LED2> led2;





igorsk

1:8064f8b8cf82


     9

PortOut ledport(Port0, LED_MASK);





igorsk

1:8064f8b8cf82


    10

FastPortOut<Port0, LED_MASK> ledport2;





igorsk

0:f1e54c45ccaf


    11







igorsk

0:f1e54c45ccaf


    12

Timer t;





igorsk

0:f1e54c45ccaf


    13

#define LOOPS 100000000





igorsk

0:f1e54c45ccaf


    14

int main() {





igorsk

0:f1e54c45ccaf


    15

    int value = 0;





igorsk

0:f1e54c45ccaf


    16

    int count = LOOPS;





igorsk

0:f1e54c45ccaf


    17

    t.start();





igorsk

0:f1e54c45ccaf


    18

    while ( count -- )





igorsk

0:f1e54c45ccaf


    19

    {





igorsk

0:f1e54c45ccaf


    20

        led1.write(value);





igorsk

0:f1e54c45ccaf


    21

        value = 1-value;





igorsk

0:f1e54c45ccaf


    22

    }





igorsk

0:f1e54c45ccaf


    23

    t.stop();





igorsk

0:f1e54c45ccaf


    24

    printf("DigitalOut: %f seconds (%d ns per iteration).\n", t.read(), t.read_us()/(LOOPS/1000));





igorsk

1:8064f8b8cf82


    25

    





igorsk

0:f1e54c45ccaf


    26

    count = LOOPS;





igorsk

0:f1e54c45ccaf


    27

    t.reset();





igorsk

0:f1e54c45ccaf


    28

    t.start();





igorsk

0:f1e54c45ccaf


    29

    while ( count -- )





igorsk

0:f1e54c45ccaf


    30

    {





igorsk

0:f1e54c45ccaf


    31

        led2 = value;





igorsk

0:f1e54c45ccaf


    32

        value = 1-value;





igorsk

0:f1e54c45ccaf


    33

    }





igorsk

0:f1e54c45ccaf


    34

    t.stop();





igorsk

0:f1e54c45ccaf


    35

    printf("FastOut: %f seconds (%d ns per iteration).\n", t.read(), t.read_us()/(LOOPS/1000));





igorsk

1:8064f8b8cf82


    36







igorsk

1:8064f8b8cf82


    37

    count = LOOPS;





igorsk

1:8064f8b8cf82


    38

    t.reset();





igorsk

1:8064f8b8cf82


    39

    t.start();





igorsk

1:8064f8b8cf82


    40

    value = LED_MASK;





igorsk

1:8064f8b8cf82


    41

    while ( count -- )





igorsk

1:8064f8b8cf82


    42

    {





igorsk

1:8064f8b8cf82


    43

        ledport.write(value);





igorsk

1:8064f8b8cf82


    44

        value ^= LED_MASK;





igorsk

1:8064f8b8cf82


    45

    }





igorsk

1:8064f8b8cf82


    46

    t.stop();





igorsk

1:8064f8b8cf82


    47

    printf("PortOut: %f seconds (%d ns per iteration).\n", t.read(), t.read_us()/(LOOPS/1000));





igorsk

1:8064f8b8cf82


    48







igorsk

1:8064f8b8cf82


    49

    count = LOOPS;





igorsk

1:8064f8b8cf82


    50

    t.reset();





igorsk

1:8064f8b8cf82


    51

    t.start();





igorsk

1:8064f8b8cf82


    52

    value = LED_MASK;





igorsk

1:8064f8b8cf82


    53

    while ( count -- )





igorsk

1:8064f8b8cf82


    54

    {





igorsk

1:8064f8b8cf82


    55

        ledport2 = value;





igorsk

1:8064f8b8cf82


    56

        value ^= LED_MASK;





igorsk

1:8064f8b8cf82


    57

    }





igorsk

1:8064f8b8cf82


    58

    t.stop();





igorsk

1:8064f8b8cf82


    59

    printf("FastPortOut: %f seconds (%d ns per iteration).\n", t.read(), t.read_us()/(LOOPS/1000));





igorsk

0:f1e54c45ccaf


    60

}