103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
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#define PBDR (*((volatile unsigned short *)0x05FFFFC2))
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#define DC 1
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#define CS1 2
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#define SDA 4
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#define SCK 8
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static const unsigned char ascii2lcd[] = {
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0x00,0x01,0x02,0x03,0x00,0x84,0x85,0x89,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0xec,0xe3,0xe2,0xe1,0xe0,0xdf,0x15,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x24,0x25,0x26,0x37,0x06,0x29,0x2a,0x2b,
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0x2c,0x2d,0x2e,0x2f,0x30,0x31,0x32,0x33,
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0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,
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0x3c,0x3d,0x3e,0x3f,0x40,0x41,0x42,0x43,
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0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,
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0x4c,0x4d,0x4e,0x4f,0x50,0x51,0x52,0x53,
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0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x5b,
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0x5c,0x5d,0x5e,0xa9,0x33,0xce,0x00,0x15,
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0x00,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,
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0x6c,0x6d,0x6e,0x6f,0x70,0x71,0x72,0x73,
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0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,
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0x7c,0x7d,0x7e,0x24,0x24,0x24,0x24,0x24,
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0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,
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0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,
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0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,
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0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,
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0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,
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0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,
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0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,
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0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,
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0x45,0x45,0x45,0x45,0x45,0x45,0x24,0x47,
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0x49,0x49,0x49,0x49,0x4d,0x4d,0x4d,0x4d,
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0x48,0x52,0x53,0x53,0x53,0x53,0x53,0x24,
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0x24,0x59,0x59,0x59,0x59,0x5d,0x24,0x24,
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0x65,0x65,0x65,0x65,0x65,0x65,0x24,0x67,
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0x69,0x69,0x69,0x69,0x6d,0x6d,0x6d,0x6d,
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0x73,0x72,0x73,0x73,0x73,0x73,0x73,0x24,
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0x24,0x79,0x79,0x79,0x79,0x7d,0x24,0x7d
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};
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void lcd_write(int byte, int data)
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{
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int i;
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char on,off;
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PBDR &= ~CS1; /* enable lcd chip select */
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if ( data ) {
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on=~(SDA|SCK);
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off=SCK|DC;
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}
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else {
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on=~(SDA|SCK|DC);
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off=SCK;
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}
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/* clock out each bit, MSB first */
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for (i=0x80;i;i>>=1)
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{
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PBDR &= on;
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if (i & byte)
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PBDR |= SDA;
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PBDR |= off;
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}
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PBDR |= CS1; /* disable lcd chip select */
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}
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void lcd_printxy( char x, char y, unsigned char* string, int len )
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{
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int i;
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lcd_write(0xb0+y*16+x,0);
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for (i=0; string[i] && i<len; i++)
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lcd_write(ascii2lcd[string[i]],1);
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}
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int main(void)
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{
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lcd_printxy(0,0,"Open Source",11);
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/* simple scroll */
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while (1) {
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int i,j;
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char* string = " Jukebox Jukebox ";
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for ( i=0; i<11; i++ ) {
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lcd_printxy(0,1,string+i,11);
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for (j=0; j<600000; j++);
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PBDR ^= 0x40; /* toggle LED (PB6) */
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}
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}
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}
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extern const void stack(void);
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const void* vectors[] __attribute__ ((section (".vectors"))) =
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{
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main, /* Power-on reset */
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stack, /* Power-on reset (stack pointer) */
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main, /* Manual reset */
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stack /* Manual reset (stack pointer) */
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};
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