HCS12 SCI Flash Programming Help

[jssimbe]

I'm using and HCS12 with icc12 compiler.  I'm using SCI1 to communicate to a touch screen LCD.  This program loads the LCD GUI.  When I try loading the program into flash, it doesn't work.  When I'm not using flash, the program works fine and GUI is loaded on the screen.  When I flash the board, I include the vectors_dp256 file and set the abs_address to 0xef80.  Any help would be greatly appreciated.  Thanks.

#include <mc9s12dp256.h>
#include <stdio.h>

#ifndef TDRE
#define TDRE 0x80
#endif
#ifndef RDRF
#define RDRF 0x20
#endif
#ifndef OR
#define OR 0x08
#endif

void main (){

        sc_init();
        loadscreen();
}

void sc_init(){

         SCI1BDL = 0x4E; // 19200 Baud Rate
         SCI1BDH = 0x00;
         SCI1CR1 = 0x00;
         SCI1CR2 = 0x2C;
         SCI1SR1 = 0xA8;
         }


void outchar(data1){  // Function to send commands

         while(!(SCI1SR1 & TDRE)){};
         SCI1DRL = data1;
         }

void loadscreen (){ //loads GUI

         outchar(0x10);
         outchar(0x02);
         outchar(0x3E);
         outchar(0x00);
         outchar(0x50);

         }

[jpdi]

Hi,

Below, the vector interrupt table I use for DP256...
Note the address I put it is 0xff80, not 0xef80...
I use ICC12 too, and it run OK for interrupt.
When I used DP256, I often write some functions in RAM, but I never change
the vector table address, just switched RAM to 0xd000 with NoIce debugger.

Hope this helps.

Best regards.
Joel



//*********************************************************
// change the address if your vector starts elsewhere
// Processeur 9S12DP256 : vecteurs interruptions en 0xff80
#pragma abs_address:0xFF80

void (*interrupt_vectors[])(void) =
        {
        // to cast a constant, say 0xb600, use (void (*)())0xb600
        // Tous les vecteurs interrupt occupent 2 octets consécutifs. Ainsi
        // l'adresse de la routine d'interruption RTI est définie aux
        // adresses $FFF0-$FFF1
        ISR_NonDeveloppe, // Reserved $FF80
        ISR_NonDeveloppe, // Reserved $FF82
        ISR_NonDeveloppe, // Reserved $FF84
        ISR_NonDeveloppe, // Reserved $FF86
        ISR_NonDeveloppe, // Reserved $FF88
        ISR_NonDeveloppe, // Reserved $FF8A
        ISR_NonDeveloppe, // $FF8C  PWM Emergency Shutdown
        ISR_NonDeveloppe, // $FF8E  Port P Interrupt
        ISR_NonDeveloppe, // $FF90  MSCAN 4 Transmit
        ISR_NonDeveloppe, // $FF92  MSCAN 4 Receive
        ISR_NonDeveloppe, // $FF94  MSCAN 4 Error
        ISR_NonDeveloppe, // $FF96  MSCAN 4 Wake-up
        ISR_NonDeveloppe, // $FF98  MSCAN 3 Transmit
        ISR_NonDeveloppe, // $FF9A  MSCAN 3 Receive
        ISR_NonDeveloppe, // $FF9C  MSCAN 3 Error
        ISR_NonDeveloppe, // $FF9E  MSCAN 3 Wake-up
        ISR_NonDeveloppe, // $FFA0  MSCAN 2 Transmit
        ISR_NonDeveloppe, // $FFA2  MSCAN 2 Receive
        ISR_NonDeveloppe, // $FFA4  MSCAN 2 Error
        ISR_NonDeveloppe, // $FFA6  MSCAN 2 Wake-up
        ISR_NonDeveloppe, // $FFA8  MSCAN 1 Transmit
        ISR_NonDeveloppe, // $FFAA  MSCAN 1 Receive
        ISR_NonDeveloppe, // $FFAC  MSCAN 1 Error
        ISR_NonDeveloppe, // $FFAE  MSCAN 1 Wake-up
        ISR_NonDeveloppe, // $FFB0  MSCAN 0 Transmit
        ISR_NonDeveloppe, // $FFB2  MSCAN 0 Receive
        ISR_NonDeveloppe, // $FFB4  MSCAN 0 Error
        ISR_NonDeveloppe, // $FFB6  MSCAN 0 Wake-up
        ISR_NonDeveloppe, // $FFB8  Flash
        ISR_NonDeveloppe, // $FFBA  EEPROM
        ISR_NonDeveloppe, // $FFBC  SPI2
        ISR_NonDeveloppe, // $FFBE  SPI1
        ISR_NonDeveloppe, // $FFC0  IIC Bus
        ISR_NonDeveloppe, // $FFC2  BDLC
        ISR_NonDeveloppe, // $FFC4  CRG Self Clock Mode
        ISR_NonDeveloppe, // $FFC6  CRG PLL Lock

        ISR_NonDeveloppe, // $FFC8  Pulse Acc B Overflow
        ISR_TimerModulus,      // $FFCA  Modulus Down Counter
Underflow

        ISR_NonDeveloppe, // $FFCC  Port H Interrupt
        ISR_NonDeveloppe, // $FFCE  Port J Interrupt
        ISR_NonDeveloppe, // $FFD0  ATD1
        ISR_NonDeveloppe, // $FFD2  ATD0
        ISR_Sci1,   // $FFD4  SCI1
        ISR_Sci0,   // $FFD6  SCI0

        ISR_NonDeveloppe, // $FFD8  SPI0
        ISR_NonDeveloppe, // $FFDA  Pulse Acc A Input Edge
        ISR_NonDeveloppe, // $FFDC  Pulse Acc A Overflow

        ISR_NonDeveloppe, // $FFDE  Timer Overflow
        ISR_Timer7, // $FFE0  Timer Channel 7
        ISR_Timer6, // $FFE2  Timer Channel 6
        ISR_Timer5, // $FFE4  Timer Channel 5
        ISR_Timer4,   // $FFE6  Timer Channel 4
        ISR_Timer3, // $FFE8  Timer Channel 3
        ISR_Timer2, // $FFEA  Timer Channel 2
        ISR_Timer1, // $FFEC  Timer Channel 1
        ISR_Timer0, // $FFEE  Timer Channel 0
        ISR_Rti,   // $FFF0  Real Time
Interrupt
        ISR_NonDeveloppe, // $FFF2  IRQ
        ISR_NonDeveloppe, // $FFF4  XIRQ
        ISR_NonDeveloppe, // $FFF6  SWI
        ISR_NonDeveloppe, // $FFF8  Unimplement Instr. Trap
        ISR_NonDeveloppe, // $FFFA  COP failure reset
        ISR_NonDeveloppe,      // $FFFC  Clock monitor fail reset
        _start, // $FFFE  Reset
        };

-----Message d'origine-----
De : 68HC12@... [mailto:68HC12@...] De la part de
jssimbe
Envoyé : vendredi 6 novembre 2009 02:29
À : 68HC12@...
Objet : [68HC12] HCS12 SCI Flash Programming Help

I'm using and HCS12 with icc12 compiler.  I'm using SCI1 to communicate to a
touch screen LCD.  This program loads the LCD GUI.  When I try loading the
program into flash, it doesn't work.  When I'm not using flash, the program
works fine and GUI is loaded on the screen.  When I flash the board, I
include the vectors_dp256 file and set the abs_address to 0xef80.  Any help
would be greatly appreciated.  Thanks.