Timer8.h

   1 #ifndef AVR_TIMER8_H
   2 #define AVR_TIMER8_H
   3
   4 #include "Types.h"
   5 #include "Hardware.h"
   6
   7 namespace avr {
   8
   9         class Timer8 : public Hardware {
  10                 public:
  11                         Timer8(Bus & bus, unsigned char tovmask, unsigned char ocfmask);
  12
  13                 public:
  14                         bool attachReg(const char *name, IORegister *reg);
  15                         void regChanged( IORegister *reg );
  16                         void step();
  17
  18                 private:
  19                         void setClock(unsigned char tccr);
  20                         void forceOutputCompare();
  21                         void compareMatchOutput(unsigned char tcnt);
  22
  23                 private:
  24                         unsigned char tovmask;
  25                         unsigned char ocfmask;
  26                         int direction;
  27
  28                         /* pg. 93 of manual. Block compareMatch for one period after
  29                      * TCNTn is written to. */
  30                     bool blockCompareMatch;
  31
  32                     // For double buffering ocr register
  33                         unsigned char ocrBuf;
  34
  35                         unsigned char timerMode;
  36                         unsigned char compareMode;
  37                         int period;
  38
  39                 private:
  40                         IORegister *ocr;
  41                         IORegister *tcnt;
  42                         IORegister *tccr;
  43                         IORegister *tifr;
  44         };
  45
  46         inline Timer8::Timer8(Bus & bus, unsigned char tovmask, unsigned char ocfmask)
  47                 : Hardware(bus), tovmask(tovmask), ocfmask(ocfmask), direction(1) {
  48                 blockCompareMatch = false;
  49                 timerMode = 0;
  50                 compareMode = 0;
  51                 period = 0;
  52         }
  53
  54 }
  55
  56 #endif /*AVR_TIMER8_H*/