psoc1,how to get a pin input value

[Anonymous]

psoc1,how to get a pin input value?

   

select StdCPU and High Z Analog?

   

What is StdCPUInput?

   

Thank you!

[Bob_Marlowe · Accepted solution]

Welcome in the forum!

   

StdCPU means: the pin's logical value can be read by the CPU. To get a digital input pin set the drive-mode to High-Z.

   

You read a pin by reading the complete port and mask out all unused pins by

   

PRTnDR & (0x01 << PinNumber) where n is the port number 0,1 etc and PinNumber is 0..7

       

Bob

[Anonymous]

Thank you Bob!

   

But I fail again. I set P7 stdcpu stong,P8 stdcpu High Z Analog,P9 stdcpu stong.And I connect P7 and P8,then P9 havent set high final.I can measure P7 is high. Please help.

   

My code:

   

#include <m8c.h>        // part specific constants and macros
#include "PSoCAPI.h"    // PSoC API definitions for all User Modules
#include "PSoCGPIOINT.h"
#define P7_1() P7_Data_ADDR |= P7_MASK
#define P7_0() P7_Data_ADDR &= (~P7_MASK)
#define P8_1() P8_Data_ADDR |= P8_MASK
#define P8_0() P8_Data_ADDR &= (~P8_MASK)
#define P9_1() P9_Data_ADDR |= P9_MASK
#define P9_0() P9_Data_ADDR &= (~P9_MASK)
#define Get_P8() P8_Data_ADDR & P8_MASK

   

void Delay_ms(int x)
{    

   

    int y;
    int z;
    
    for (y=0; y<x; y++)
        for (z=0; z<51; z++)    //1ms delay when CPUCLK=24MHz
        {
            z++;z--;z++;z--;
        }
}

   

void main(void)
{
    // Insert your main routine code here.
    P7_1();
    while(1)
    {
        if(Get_P8())
        {
            P9_1();
        }else
        {
            P9_0();
        }
        Delay_ms(100);
    }

   

    
}

[Anonymous]

By the way,I am using cy8c20446.

   

Thank you!

[Bob_Marlowe]

Please do not provide code snippets only. Can you post your complete project, so that we all can have a look at all of your settings? To do so, use
Designer->File->Archive Project...
and attach the resulting file.

   

Are you trying to learn PSoC? If so, I would suggest you to use a (more modern) prototyping kit which allows you to debug your program.

       

Bob