LC60 keyboard interrupt

birdbird — Tue, 02 Jun 2009 12:59:20 GMT

hello i m doing a proj on lc60 that requires me to do a programme on keyboard interrupt. i keep getting errors on my codes. Can anyone point out my mistake? Thank you.

#include <MC9S08LC60.h>
#include "derivative.h"
#include <stdtypes.h>
#include "LCD.h"
#include "TPM1.h"
#include <stdio.h>
#include "Delays.h"
//#include "StopModes.h"
//#include "Timeout.h"
//#include "ADC.h"
#include "KBInotes.h"

unsigned char ucKey_press, ucKey_press2,row_press, column_press, i=1, P_ucKey_press;
unsigned char KeyStore[6]={0,0,0,0,0,0}; //Test
unsigned char *str, key_entered= FALSE;

// KEYPAD
/////////////////////////////////////////////////////////////////////////////////////////

void KBIinit (void){
KBI1SC_KBIE = 0; //clear keyboard interrupt
KBI1ES = 0; //select falling edge
PTADD = 0X78; //initialize Port A(0,1,2) as inputs, Port A(3,4,5,6) as output
PTAPE = 0X07; //Pull up enable for bit 0,1,2
KBI1PE = 0X07; //Enables pin 0-2
KBI1SC_KBACK = 1; //Clear interrupt
KBI1SC_KBIE = 1; //Keyboard interrupt enabled
PTAD=0x00; // set other output to low
KBI1SC_KBIMOD = 0; //Keyboard detects edges only

}

void Column_Read(void)
{
if (PTAD_PTAD0 == 0)
{
column_press = 1;
}

else if (PTAD_PTAD1 == 0)
{
column_press = 2;
}

else if (PTAD_PTAD2 == 0)
{
column_press = 3;
}
}

void Row_Read(void)
{

PTADD = 0X07; //initialize Port A(3,4,5,6) as inputs, Port A(0,1,2) as output
PTAPE = 0X78; //Pull up enable for bit 3,4,5,6
KBI1PE = 0X78; //Enables pin 3-6
PTAD_PTAD4 = 1;
PTAD_PTAD0 = 0;
PTAD_PTAD1 = 0;
PTAD_PTAD2 = 0;

if (PTAD_PTAD3 == 0)
{
row_press = 1;
}

else if (PTAD_PTAD3 == 1)
{
row_press = 0;
}

PTADD = 0X78; //initialize Port A(0,1,2) as inputs, Port A(3,4,5,6) as output
PTAPE = 0X07; //Pull up enable for bit 0,1,2
KBI1PE = 0X07; //Enables pin 0-2
PTAD_PTAD3 = 0;
PTAD_PTAD4= 0;
PTAD_PTAD5= 0;
PTAD_PTAD6=0;

}

void KBI_Read (void)
{
//declaration of 2 dimensional array
static char KBI_Read_Data[3] = {{'1'},{'2'},{'3'}};
Column_Read();
Row_Read();

ucKey_press = KBI_Read_Data[column_press - 1];
key_entered= TRUE;
}

unsigned char KBI_Read2(void){       //for passing back to BMI prog as unsigned char fn.
     key_entered = FALSE;
     while (!key_entered);
     ucKey_press2=ucKey_press;
     key_entered = FALSE;

return ucKey_press2;
}

void Keypad_Recall_Display(void)
{
    //declaration
    unsigned char First_Digit=0, Second_Digit=0, Third_Digit=0;
    unsigned char Fourth_Digit=0, Fifth_Digit=0, Sixth_Digit=0;

    First_Digit = KeyStore[0];
    Second_Digit = KeyStore[1];
    Third_Digit = KeyStore[2];
    Fourth_Digit = KeyStore[3];
    Fifth_Digit = KeyStore[4];
    Sixth_Digit = KeyStore[5];

    LCDPutChar(First_Digit, 1);
LCDPutChar(Second_Digit, 2);
    LCDPutChar(Third_Digit, 3);
LCDPutChar(Fourth_Digit, 4);
    LCDPutChar(Fifth_Digit, 5);
LCDPutChar(Sixth_Digit, 6);

}

//======================Keypad interrupt=========================
interrupt VectorNumber_Vkeyboard1 void KeypadInterrupt (void){
extern unsigned int TimerTable[10], TimerFlag[10];
extern byte bADC_Sample;

//STOP3_MODE_EXIT();
//TimeOut_init();
KBI_Read(); // check the key pressed
KBI1SC_KBACK = 1; // Acknowledge Interrupt and Clear flag

if ((ucKey_press != P_ucKey_press) || (TimerFlag[0] == TRUE)){
//j=i-1; //Test
//KeyStore[j] = ucKey_press; //Test
LCDPutChar(ucKey_press, i); // accept key entry
P_ucKey_press = ucKey_press;
i++;
if (i >=9)i=1;

TimerTable[0]=320; // set debounce time
TimerFlag[0]=FALSE;
if(TimerFlag[0]==FALSE){
bADC_Sample = TRUE;

}

}//endif
}//end interruptKBI

Re: LC60 keyboard interrupt

Lundin — Tue, 02 Jun 2009 15:58:40 GMT

What is "errors in codes" more specifically?

Re: LC60 keyboard interrupt

birdbird — Tue, 02 Jun 2009 16:04:57 GMT

Error : C1815: ucKey_press not declared (or typename)

main.c line 35

Error : C1815: P_ucKey_press not declared (or typename)

main.c line 35

Warning : C1801: Implicit parameter-declaration for 'LED1_turnOn'

main.c line 37

Warning : C1420: Result of function-call is ignored

main.c line 37

Error : Compile failed

Re: LC60 keyboard interrupt

Lundin — Tue, 02 Jun 2009 20:31:48 GMT

Are you certain the errors are for the file you posted and not some other file in the project?

ucKey_press and P_ucKey_press are indeed declared.
The other references must be in some other file in the project.

You can get these warnings if you have missing semicolons etc in h-files, or if you have declared variables in h-files. It is hard to tell what's causing the error.

Apart from that, I also noticed a severe bug: the variables shared between main and the interrupt are not declared as volatile. The bug might cause your program to behave completely randomly when any kind of compiler optimization is active.

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