U23 2007/Evil Solutions/dimmer.c
< U23 2007 | Evil Solutions
Revision as of 18:24, 4 June 2007 by Evil Operator (talk | contribs) (New page: <pre> #include <avr/io.h> void ins_schieb (char); void delay (uint8_t); uint8_t is_Set (uint8_t, char); int main(void) { DDRA = 0xFF; // Set OE PORTA = 0x08 ; ins_schieb(0); dela...)
#include <avr/io.h> void ins_schieb (char); void delay (uint8_t); uint8_t is_Set (uint8_t, char); int main(void) { DDRA = 0xFF; // Set OE PORTA = 0x08 ; ins_schieb(0); delay(128); uint8_t a, b, c; while (1) { // aufblenden for (b = 0 ; b < 20 ; b++) { for (c = 0; c < 20 ; c++) { // anmachen for (a = 0; a <= b ; a++) { ins_schieb(0x01); } for (a = 20-b; a > 0; a--) { ins_schieb(0x80); } } } // abblenden for (b = 20 ; b > 0 ; b--) { for (c = 0; c < 20 ; c++) { // anmachen for (a = 0; a <= b ; a++) { ins_schieb(0x01); } for (a = 20-b; a > 0; a--) { ins_schieb(0x80); } } } } return 0; } void ins_schieb ( char eingabe) { uint16_t i; for ( i = 0 ; i <= 16 ; i++) { // Data if ( i % 2) { if ( is_Set( ((int) i/2), eingabe )){ PORTA |= (1 << 1); }else { PORTA &= ~ (1 << 1); } } // Clock if ( i % 2 ) { PORTA |= (1 << 2 ); } else { PORTA &= ~ (1 << 2 ); } } // Set and unset Strobe PORTA |= (1 << 0 ) ; PORTA &= ~ (1 << 0 ) ; } uint8_t is_Set (uint8_t bit, char eingabe) { uint8_t op2 = eingabe & (~ (1 << bit)); uint8_t erg = eingabe ^ op2; if (erg > 0) return 1; return 0; } void delay(uint8_t adelay){ uint16_t b; uint16_t a; for (a = 0 ; a < adelay; a++) for (b = 0; b < 0xFF ; b++) { PORTB = 0x00; /* nix */ } }