File content as of revision 23:1c51af8386c9:

#include "mbed.h"
#include "HIDScope.h"
#include "MODSERIAL.h"
#include "arm_math.h"

//Define objects
AnalogIn    emgB(PTB0); //Analog input bicep
AnalogIn    emgT(PTB1); //Analog input tricep

float filtered_emgB;

MODSERIAL pc(USBTX,USBRX);

HIDScope scope(2);//WHAT IS THIS

arm_biquad_casd_df1_inst_f32 lowpass;
//constants for 50Hz lowpass
float lowpass_const[] = {-0.2924 , 0.1085 , 0 , 0.5587 , 0.2573};//{a1 a2 b0 b1 b2} normalized coefficients (a0=1)
//state values
float lowpass_states[4];//WHAT IS THIS

arm_biquad_casd_df1_inst_f32 highpass;
//constants for 10Hz highpass
float highpass_const[] = {-1.562, 0.6413,  1, -1.958 , 0.9576};//{a1 a2 b0 b1 b2} normalized coefficients (a0=1)
//state values
float highpass_states[4];//WHAT IS THIS


/** Looper function
* functions used for Ticker and Timeout should be of type void <name>(void)
* i.e. no input arguments, no output arguments.
* if you want to change a variable that you use in other places (for example in main)
* you will have to make that variable global in order to be able to reach it both from
* the function called at interrupt time, and in the main function.
* To make a variable global, define it under the includes.
* variables that are changed in the interrupt routine (written to) should be made
* 'volatile' to let the compiler know that those values may change outside the current context.
* i.e.: "volatile uint16_t emg_value;" instead of "uint16_t emg_value"
* in the example below, the variable is not re-used in the main function, and is thus declared
* local in the looper function only.
**/

//BICEP EMG LEZEN
void looperB()
{
    /*variable to store value in*/
    uint16_t emg_valueB;
    
    float emg_value_f32B;
    /*put raw emg value both in red and in emg_value*/
    emg_valueB = emgB.read_u16(); // read direct ADC result, converted to 16 bit integer (0..2^16 = 0..65536 = 0..3.3V)
    emg_value_f32B = emgB.read();

    //process emg
    arm_biquad_cascade_df1_f32(&highpass, &emg_value_f32B, &filtered_emgB, 1 );
    filtered_emgB = fabs(filtered_emgB);
    arm_biquad_cascade_df1_f32(&lowpass, &filtered_emgB, &filtered_emgB, 1 );

    /*send value to PC. */
    scope.set(0,emg_valueB);     //uint value
    scope.set(1,filtered_emgB);  //processed float
    scope.send();

}

void looperT()
{
    /*variable to store value in*/
    uint16_t emg_valueT;
    float filtered_emgT;
    float emg_value_f32T;
    /*put raw emg value both in red and in emg_value*/
    emg_valueT = emgT.read_u16(); // read direct ADC result, converted to 16 bit integer (0..2^16 = 0..65536 = 0..3.3V)
    emg_value_f32T = emgT.read();

    //process emg
    arm_biquad_cascade_df1_f32(&highpass, &emg_value_f32T, &filtered_emgT, 1 );
    filtered_emgT = fabs(filtered_emgT);
    arm_biquad_cascade_df1_f32(&lowpass, &filtered_emgT, &filtered_emgT, 1 );

    /*send value to PC. */
    scope.set(0,emg_valueT);     //uint value
    scope.set(1,filtered_emgT);  //processed float
    scope.send();

}

int main()
{
    Ticker log_timer;
    //set up filters. Use external array for constants
    arm_biquad_cascade_df1_init_f32(&lowpass,1 , lowpass_const, lowpass_states);
    arm_biquad_cascade_df1_init_f32(&highpass,1 ,highpass_const, highpass_states);

    /**Here you attach the 'void looper(void)' function to the Ticker object
    * The looper() function will be called every 0.01 seconds.
    * Please mind that the parentheses after looper are omitted when using attach.
    */
    log_timer.attach(looperB, 0.005);//??
    log_timer.attach(looperT, 0.005);//??
    while(1) { //Loop
        /*Empty!*/
        /*Everything is handled by the interrupt routine now!*/
    }
}

//filtered_emgB
//filtered_emgT

void Antwoord()
{
    float drempelwaarde=4.99;

    if (filtered_emgB > drempelwaarde) {
        int y=1;
    } else {
        int y=0;
    }

    if (int y=1) {
        pc.printf("Motor 1 beweegt");
    } else {
        pc.printf("Motor 1 beweegt niet");
    }
}