Hi All,
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I had written a simple C program for M68HC711E9 Controller using Freeware=
GCC version 3.3.6. Also i compiled using GCC with vectors.c file and Linke=
r file memory.x
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I generated the .S19 using GCC compiler and flashed it to 68HC711E9 using=
EVBplus2 development Board. But the C Code is not working, its not display=
ing the LED in Port B.
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The C Code and Memory.x (Linker command file) is as below: Please tell me=
is there any problem in C code or Linker command file (memory.x)
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C code:
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#define REGISTER unsigned char
#define REG_BASE 0x1000
#define PORTA *(( REGISTER volatile *)(REG_BASE + 0x00))
#define PORTB *((REGISTER volatile *)(REG_BASE + 0x04))
#define M6811_PORTC *((REGISTER volatile *)(REG_BASE + 0x03))
#define M6811_DDRC *((REGISTER volatile *)(REG_BASE + 0x07))
#define M6811_PORTD *((REGISTER volatile *)(REG_BASE + 0x08))
#define M6811_DDRD *((REGISTER volatile *)(REG_BASE + 0x09))
#define PORTE *((REGISTER volatile *)(REG_BASE + 0x0A))
#define M6811_OPTION *((REGISTER volatile *)(REG_BASE + 0x39))
#define M6811_TMSK2 *((REGISTER volatile *)(REG_BASE + 0x24))
#define M6811_CONFIG *((REGISTER volatile *)(REG_BASE + 0x3F))
#define M6811_PACTL *((REGISTER volatile *)(REG_BASE + 0x26))=20=20
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#define OC1M *((unsigned char volatile *)0x100C)
#define OC1D *((unsigned char volatile *)0x100D)
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#define ADCTL *((unsigned char volatile *)0x1030)=20=20=20
#define TCTL2 *((unsigned char volatile *)0x1021)=20=20
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#define BPROT *((unsigned char volatile *)0x1035)=20=20=20
#define TCTL1 *((unsigned char volatile *)0x1020)
#define TFLG1 *((unsigned char volatile *)0x1023)
#define TFLG2 *((unsigned char volatile *)0x1025)
#define CONFIG *((unsigned char volatile *)0x103F)
#define COPRST *((unsigned char volatile *)0x103A)
#define RAMSTARTADDR ((unsigned char volatile *)0x0000)
#define RAMENDADDR ((unsigned char volatile *)0x0100)
int __attribute__((noreturn)) main (void);
void _start (void);
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main()
{
int rdata=3D0,wdata=3D0;
int loopi=3D0;
volatile unsigned char *PointerToRam;
/*Set the Regsiters of 68hc11 */
M6811_OPTION =3D 0xB3; /* Update OPTION Register, RQ=3DNEG.EDGE, S=
TOP DLY, COP=3D1.048 Sec., A/D CONV.=3D ON*/
M6811_TMSK2 =3D 0xC3; /* Update OPTION Register,Set TCNT CLKS=3D8 uS=
, TOF & RTC IRQ's ON*/
M6811_CONFIG =3D M6811_CONFIG & 0xE0;
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M6811_PACTL =3D 0x8A;=20=20
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M6811_DDRC &=3D 0x00;
M6811_PORTD =3D 0x24;
M6811_DDRD=3D 0x3C;
PORTB &=3D 0x00;
while(RAMSTARTADDR !=3D RAMENDADDR)
*RAMSTARTADDR =3D 0x00;
RAMSTARTADDR++;
while(1)
{
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PORTB |=3D 0x20;
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}
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void _start()
{
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__asm__ __volatile__ ("lds #0x01FF");
__asm__ __volatile__ ("bra main");
}
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-------------------------------------------------------------------------=
-----------------------------
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Memory.x:
MEMORY
{
page0 (rwx) : ORIGIN =3D 0x0000, LENGTH =3D 256
text (rx) : ORIGIN =3D 0xE000, LENGTH =3D 12287
eeprom : ORIGIN =3D 0xB600, LENGTH =3D 512
data : ORIGIN =3D 0x0000, LENGTH =3D 256
vector : ORIGIN =3D 0xFFC0, LENGTH =3D 64
}
/* Setup the stack on the top of the data internal ram (not used). */
PROVIDE (_stack =3D 0x01FF-1);
PROVIDE (_io_ports =3D 0x1000);
/* PROVIDE (_vectors_addr =3D 0xffc0); */

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