Mine

/******************************************************************************Title:    encoder -> PWMAuthor:   rue_mohrDate:     Aug 19 2005Software: AVR-GCC 3.3 Hardware: atmega32                           ATmega32 - 40 PIN DIP LAYOUT FOR DECODER AND PWM -                                       _______________________                                      [ 1]PB0         PA0[40] <- up button                                      [ 2]PB1         PA1[39] <- down button                                      [ 3]PB2         PA2[38]                                       [ 4]PB3         PA3[37]                                       [ 5]PB4         PA4[36]                                       [ 6]PB5         PA5[35]                                       [ 7]PB6         PA6[34]                                       [ 8]PB7         PA7[33]                              RESET -> [ 9]RST        AREF[32] <- +5V VCC                            5V VCC -> [10]VCC         GND[31] <- GROUND                            GROUND -> [11]GND        AVCC[30] <- +5V VCC                       16 MHZ XTAL -> [12]XTAL1       PC7[29] -> LCD DATA 7                       16 MHZ XTAL -> [13]XTAL2       PC6[28] -> LCD DATA 6                                      [14]PD0         PC5[27] -> LCD DATA 5                                      [15]PD1         PC4[26] -> LCD DATA 4                                      [16]PD2         PC3[25] -> LCD E                                        [17]PD3         PC2[24] -> LCD RS                                       [18]PD4         PC1[23] -> LCD RW                                       [19]PD5         PC0[22]                                                        [20]PD6         PD7[21]                                        ______________________                         what this should do:when you turn the encoder one way, the motor shoudl go forward, at a variable speedwhen you turn the encoder the other way, the motor shoudl go backward, at a variable speedcenter is stopped, goes up as you get away from centerwhen it rolls over, it will suddenly switch directions    *******************************************************************************/ /****************************| INCLUDGEABLES |********************************/ #include<avr/io.h>#include "global.h"#include "rprintf.h"#include "lcd.h"/*****************************| DEFINIATIONS |********************************/  #define OUTPUT             1#define INPUT              0 /*****************************| VARIABLES |********************************/  /************************| FUNCTION DECLARATIONS |*************************/  /****************************| CODE... |***********************************/ int main (void)  {  lcdInit();                  // initialize LCD on PortC          rprintfInit(lcdDataWrite);  // direct printf output to LCD  lcdClear();                 // Clear LCD  lcdGotoXY(0,0);	      // LCD Line 1 , Character 1  rprintf("Button test R1"); 	          DDRA = (INPUT << PA0)|(INPUT << PA1)|(INPUT << PA2)|(INPUT << PA3)|(INPUT << PA4)|(INPUT << PA5)|(INPUT << PA6)|(INPUT << PA7);  DDRB = (OUTPUT << PB0)|(INPUT << PB1)|(INPUT << PB2)|(OUTPUT << PB3)|(INPUT << PB4)|(INPUT << PB5)|(INPUT << PB6)|(INPUT << PB7);  DDRD = (INPUT << PD0)|(INPUT << PD1)|(INPUT << PD2)|(INPUT << PD3)|(INPUT << PD4)|(INPUT << PD5)|(INPUT << PD6)|(OUTPUT << PD7);           while(1) {      lcdGotoXY(0,1); // Char 1, LCD Line 2      if (0) {       } else if ((PINA & 0x03) == 3) {         rprintf("No buttons down");       } else if (PINA & 0x01) {         rprintf("Button 1 down");      } else if (PINA & 0x02) {         rprintf("Button 2 down");      } else {        rprintf("Both buttons down");      }         }}    //------------------------| FUNCTIONS |------------------------