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PSoC™ 4 Forum Discussions

CK_4512541
Level 1
Level 1

I am using CY8C4025AZI-S413 micro controller with PSoC 4.3 creator

I have configured 4 buttons and one proximity in single cap sense block in top design

I wrote code for the same but it is not executing

If i configured single button and write the same code, it is executing

But I want to turn on seperate 4 LED if any of the buttons 1,2,3,4 pressed and and release respective led if button is released along with key number to be displayed on UART

Please Refer my code:

/**********************************************************************************************************/

int main(void)

{

  

   

    CyGlobalIntEnable; /* Enable global interrupts. */

    /* Place your initialization/startup code here (e.g. MyInst_Start()) */

    pwm_Start();

   

    capsense1_Start();

    capsense1_InitializeAllBaselines();

    capsense1_ScanAllWidgets();

   

   

    led17_Write(0);

   

    for(;;)

    {

        /* Place your application code here. */

       

        if(!CapSense_IsBusy())

        {

             CapSense_ProcessAllWidgets();

              if (CapSense_IsAnyWidgetActive())

            {

                LED_1_Write(1);

            }

            else

            {

                LED_1_Write(0);

            }

        }

       

       

      

        CapSense_UpdateAllBaselines();

         CapSense_ScanAllWidgets();

       

       

       

    }

}

/**********************************************************************************************************/

I should check button and proximity if buttons are enable, proximity should be disabled and vice versa

What should I do?

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1 Solution

OOPS!

Since I was about to leave my office, I totally forgot about LEDs.

Following is main.c supporting 4 LEDs.

main.c

==============================

#include "project.h"

#include "stdio.h"

#if 1 // change to 0 if your LED turn on with LOW LEVEL

#define LED_ON (1u)

#define LED_OFF (0u)

#else

#define LED_ON (0u)

#define LED_OFF (1u)

#endif

#define STR_LEN 64

char str[STR_LEN+1] ; /* print buffer */

void print(char *str)

{

    UART_UartPutString(str) ;

}

void cls(void)

{

    print("\033c") ; /* reset */

    CyDelay(20) ;

    print("\033[2J") ; /* clear screen */

    CyDelay(20) ;

}

void splash(void)

{

    cls() ;

    sprintf(str, "CapSense Test (%s %s)\n", __DATE__, __TIME__) ;

    print(str) ;

    snprintf(str, STR_LEN, "(%s %s)\n", __DATE__, __TIME__) ;

    print(str) ;

}

void init_hardware(void)

{

    CyGlobalIntEnable; /* Enable global interrupts. */

    UART_Start() ;

   

    CapSense_Start() ;

    CapSense_ScanAllWidgets() ;

}

int main(void)

{

    uint32_t button_state = 0 ;

    uint32_t proximity_state = 0 ;

   

    init_hardware() ;

   

    splash() ;

    for(;;)

    {

        if (CapSense_IsBusy() == CapSense_NOT_BUSY) {

            CapSense_ProcessAllWidgets() ;

           

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS0_ID

            ) ;

            if (button_state) { /* button pressed */

                LED1_Write(LED_ON) ;

                snprintf(str, STR_LEN, "Button1: 0x%08X\n", button_state) ;

                print(str) ;

            } else {

                LED1_Write(LED_OFF) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS1_ID

            ) ;

            if (button_state) { /* button pressed */

                LED2_Write(LED_ON) ;

                snprintf(str, STR_LEN, "Button2: 0x%08X\n", button_state) ;

                print(str) ;

            } else {

                LED2_Write(LED_OFF) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS2_ID

            ) ;

            if (button_state) { /* button pressed */

                LED3_Write(LED_ON) ;

                snprintf(str, STR_LEN, "Button3: 0x%08X\n", button_state) ;

                print(str) ;

            } else {

                LED3_Write(LED_OFF) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS3_ID

            ) ;

            if (button_state) { /* button pressed */

                LED4_Write(LED_ON) ;

                snprintf(str, STR_LEN, "Button4: 0x%08X\n", button_state) ;

                print(str) ;

            } else {

                LED4_Write(LED_OFF) ;

            }

           

            proximity_state = CapSense_IsSensorActive(

                CapSense_PROXIMITY0_WDGT_ID,

                CapSense_PROXIMITY0_SNS0_ID

            ) ;

            if (proximity_state) {

                snprintf(str, STR_LEN, "Proximity: 0x%08X\n", proximity_state) ;

                print(str) ;

            }

            CapSense_ScanAllWidgets(); 

        }

    }

}

==============================

Note: I have compiled this project but have not tested on a hardware.

moto

View solution in original post

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3 Replies
TaeY_56
Employee
Employee

Hi

capsense1_Start();

capsense1_InitializeAllBaselines();

capsense1_ScanAllWidgets();

Are the above three functions customized based on the existing CapSense API ?

If it is, please share the customized source code or the entire project file.

Thank you,

Teddy

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MotooTanaka
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

Hi,

I tried with a TSoC Board, which has CY8C4146LQI-S433.

As I'm still learning about CapSense, and I'm sure this is NOT the most elegant implementation.

But it's somewhat working.

schematic

001-schematic.JPG

CapSense Config

002-CapSense-config.JPG

Pins

003-Pins.JPG

main.c

==================

#include "project.h"

#include "stdio.h"

#define STR_LEN 64

char str[STR_LEN+1] ; /* print buffer */

void print(char *str)

{

    UART_UartPutString(str) ;

}

void cls(void)

{

    print("\033c") ; /* reset */

    CyDelay(20) ;

    print("\033[2J") ; /* clear screen */

    CyDelay(20) ;

}

void splash(void)

{

    cls() ;

    sprintf(str, "CapSense Test (%s %s)\n", __DATE__, __TIME__) ;

    print(str) ;

    snprintf(str, STR_LEN, "(%s %s)\n", __DATE__, __TIME__) ;

    print(str) ;

}

void init_hardware(void)

{

    CyGlobalIntEnable; /* Enable global interrupts. */

    UART_Start() ;

   

    CapSense_Start() ;

    CapSense_ScanAllWidgets() ;

}

int main(void)

{

    uint32_t button_state = 0 ;

    uint32_t proximity_state = 0 ;

   

    init_hardware() ;

   

    splash() ;

    for(;;)

    {

        if (CapSense_IsBusy() == CapSense_NOT_BUSY) {

            CapSense_ProcessAllWidgets() ;

           

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS0_ID

            ) ;

            if (button_state) { /* button pressed */

                snprintf(str, STR_LEN, "Button1: 0x%08X\n", button_state) ;

                print(str) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS1_ID

            ) ;

            if (button_state) { /* button pressed */

                snprintf(str, STR_LEN, "Button2: 0x%08X\n", button_state) ;

                print(str) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS2_ID

            ) ;

            if (button_state) { /* button pressed */

                snprintf(str, STR_LEN, "Button3: 0x%08X\n", button_state) ;

                print(str) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS3_ID

            ) ;

            if (button_state) { /* button pressed */

                snprintf(str, STR_LEN, "Button4: 0x%08X\n", button_state) ;

                print(str) ;

            }

           

            proximity_state = CapSense_IsSensorActive(

                CapSense_PROXIMITY0_WDGT_ID,

                CapSense_PROXIMITY0_SNS0_ID

            ) ;

            if (proximity_state) {

                snprintf(str, STR_LEN, "Proximity: 0x%08X\n", proximity_state) ;

                print(str) ;

            }

            CapSense_ScanAllWidgets(); 

        }

           

    }

}

==================

Tera Term log

000-TeraTerm-log.JPG

moto

0 Likes

OOPS!

Since I was about to leave my office, I totally forgot about LEDs.

Following is main.c supporting 4 LEDs.

main.c

==============================

#include "project.h"

#include "stdio.h"

#if 1 // change to 0 if your LED turn on with LOW LEVEL

#define LED_ON (1u)

#define LED_OFF (0u)

#else

#define LED_ON (0u)

#define LED_OFF (1u)

#endif

#define STR_LEN 64

char str[STR_LEN+1] ; /* print buffer */

void print(char *str)

{

    UART_UartPutString(str) ;

}

void cls(void)

{

    print("\033c") ; /* reset */

    CyDelay(20) ;

    print("\033[2J") ; /* clear screen */

    CyDelay(20) ;

}

void splash(void)

{

    cls() ;

    sprintf(str, "CapSense Test (%s %s)\n", __DATE__, __TIME__) ;

    print(str) ;

    snprintf(str, STR_LEN, "(%s %s)\n", __DATE__, __TIME__) ;

    print(str) ;

}

void init_hardware(void)

{

    CyGlobalIntEnable; /* Enable global interrupts. */

    UART_Start() ;

   

    CapSense_Start() ;

    CapSense_ScanAllWidgets() ;

}

int main(void)

{

    uint32_t button_state = 0 ;

    uint32_t proximity_state = 0 ;

   

    init_hardware() ;

   

    splash() ;

    for(;;)

    {

        if (CapSense_IsBusy() == CapSense_NOT_BUSY) {

            CapSense_ProcessAllWidgets() ;

           

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS0_ID

            ) ;

            if (button_state) { /* button pressed */

                LED1_Write(LED_ON) ;

                snprintf(str, STR_LEN, "Button1: 0x%08X\n", button_state) ;

                print(str) ;

            } else {

                LED1_Write(LED_OFF) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS1_ID

            ) ;

            if (button_state) { /* button pressed */

                LED2_Write(LED_ON) ;

                snprintf(str, STR_LEN, "Button2: 0x%08X\n", button_state) ;

                print(str) ;

            } else {

                LED2_Write(LED_OFF) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS2_ID

            ) ;

            if (button_state) { /* button pressed */

                LED3_Write(LED_ON) ;

                snprintf(str, STR_LEN, "Button3: 0x%08X\n", button_state) ;

                print(str) ;

            } else {

                LED3_Write(LED_OFF) ;

            }

            button_state = CapSense_IsSensorActive(

                CapSense_BUTTON0_WDGT_ID,

                CapSense_BUTTON0_SNS3_ID

            ) ;

            if (button_state) { /* button pressed */

                LED4_Write(LED_ON) ;

                snprintf(str, STR_LEN, "Button4: 0x%08X\n", button_state) ;

                print(str) ;

            } else {

                LED4_Write(LED_OFF) ;

            }

           

            proximity_state = CapSense_IsSensorActive(

                CapSense_PROXIMITY0_WDGT_ID,

                CapSense_PROXIMITY0_SNS0_ID

            ) ;

            if (proximity_state) {

                snprintf(str, STR_LEN, "Proximity: 0x%08X\n", proximity_state) ;

                print(str) ;

            }

            CapSense_ScanAllWidgets(); 

        }

    }

}

==============================

Note: I have compiled this project but have not tested on a hardware.

moto

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