Timer Functions - The HCS12/9S12: An Introduction to Software and Hardware Interfacing - page 391

dc.w 40,40,40,3,80,20,20,40,40,40,3,80,3,40,60,20,40

dc.w 80,20,20,40,40,40,80,3,40,40,3,40,3,20,20

dc.w 40, 3,40,3,40,40,20,20,20,20,3,40,40,20,3,20

dc.w 60,20,20,20,80,20,20,60,20,40,80

end
The C language version of the program to be compiled by CodeWarrior and also support a
serial monitor is as follows:
#include “c:\cwHCS12\include\hcs12.h”
#include “c:\cwHCS12\include\SetClk.h”
#define G3 7653

#define B3 6074

#define C4 5733

#define C4S 5412

#define D4 5108

#define E4 4551

#define F4 4295

#define F4S 4054

#define G4 3827

#define A4 3409

#define B4F 3218

#define B4 3037

#define C5 2867

#define D5 2554

#define E5 2275

#define F5 2148

#define ZZ 20 // delay count to create an inaudible sound

#define toggle 0x04 // value to toggle OC5 pin

int delay;
unsigned int score[] 5 {
D4,B3,G3,B3,D4,G4,B4,A4,G4,B3,C4S,
D4,ZZ,D4,ZZ,D4,B4,A4,G4,F4S,E4,F4S,G4,ZZ,G4,D4,B3,G3,
D4,B3,G3,B3,D4,G4,B4,A4,G4,B3,C4S,D4,ZZ,D4,ZZ,D4,
B4,A4,G4,F4S,E4,F4S,G4,ZZ,G4,D4,B3,G3,B4,ZZ,B4,
B4,C5,D5,ZZ,D5,C5,B4,A4,B4,C5,ZZ,C5,ZZ,C5,B4,A4,G4,
F4S,E4,F4S,G4,B3,C4S,D4,ZZ,D4,G4,ZZ,G4,ZZ,G4,F4S,
E4,ZZ,E4,ZZ,E4,A4,C5,B4,A4,G4,ZZ,G4,F4S,D4,ZZ,D4,
G4,A4,B4,C5,D5,G4,A4,B4,C5,A4,G4,0};
unsigned int dur[] 5 {
30,10,40,40,40,80,30,10,40,40,40,
80,3,20,3,20,60,20,40,80,20,20,40,3,40,40,40,40,
30,10,40,40,40,80,30,10,40,40,40,80,3,20,3,20,
60,20,40,80,20,20,40,3,40,40,40,60,20,3,20,
40,40,40,3,80,20,20,40,40,40,3,80,3,40,60,20,40,
80,20,20,40,40,40,80,3,40,40,3,40,3,20,20,
40,3,40,3,40,40,20,20,20,20,3,40,40,20,3,20,
60,20,20,20,80,20,20,60,20,40,80};
void delayby10ms(int kk);
void main(void) {

int j;

SetClk8(); // set E-clock to 24 MHz