mirror of
https://github.com/JeffersGlass/DDS_VFO.git
synced 2024-11-27 10:47:36 -06:00
88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
#if defined(__AVR__)
|
|
|
|
#include <avr/io.h>
|
|
#include <avr/interrupt.h>
|
|
|
|
#define attachInterrupt(num, func, mode) enableInterrupt(num)
|
|
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
|
|
#define SCRAMBLE_INT_ORDER(num) ((num < 4) ? num + 2 : ((num < 6) ? num - 4 : num))
|
|
#define DESCRAMBLE_INT_ORDER(num) ((num < 2) ? num + 4 : ((num < 6) ? num - 2 : num))
|
|
#else
|
|
#define SCRAMBLE_INT_ORDER(num) (num)
|
|
#define DESCRAMBLE_INT_ORDER(num) (num)
|
|
#endif
|
|
|
|
static void enableInterrupt(uint8_t num)
|
|
{
|
|
switch (DESCRAMBLE_INT_ORDER(num)) {
|
|
#if defined(EICRA) && defined(EIMSK)
|
|
case 0:
|
|
EICRA = (EICRA & 0xFC) | 0x01;
|
|
EIMSK |= 0x01;
|
|
return;
|
|
case 1:
|
|
EICRA = (EICRA & 0xF3) | 0x04;
|
|
EIMSK |= 0x02;
|
|
return;
|
|
case 2:
|
|
EICRA = (EICRA & 0xCF) | 0x10;
|
|
EIMSK |= 0x04;
|
|
return;
|
|
case 3:
|
|
EICRA = (EICRA & 0x3F) | 0x40;
|
|
EIMSK |= 0x08;
|
|
return;
|
|
#elif defined(MCUCR) && defined(GICR)
|
|
case 0:
|
|
MCUCR = (MCUCR & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
|
|
GICR |= (1 << INT0);
|
|
return;
|
|
case 1:
|
|
MCUCR = (MCUCR & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
|
|
GICR |= (1 << INT1);
|
|
return;
|
|
#elif defined(MCUCR) && defined(GIMSK)
|
|
case 0:
|
|
MCUCR = (MCUCR & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
|
|
GIMSK |= (1 << INT0);
|
|
return;
|
|
case 1:
|
|
MCUCR = (MCUCR & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
|
|
GIMSK |= (1 << INT1);
|
|
return;
|
|
#endif
|
|
#if defined(EICRB) && defined(EIMSK)
|
|
case 4:
|
|
EICRB = (EICRB & 0xFC) | 0x01;
|
|
EIMSK |= 0x10;
|
|
return;
|
|
case 5:
|
|
EICRB = (EICRB & 0xF3) | 0x04;
|
|
EIMSK |= 0x20;
|
|
return;
|
|
case 6:
|
|
EICRB = (EICRB & 0xCF) | 0x10;
|
|
EIMSK |= 0x40;
|
|
return;
|
|
case 7:
|
|
EICRB = (EICRB & 0x3F) | 0x40;
|
|
EIMSK |= 0x80;
|
|
return;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#elif defined(__PIC32MX__)
|
|
|
|
#ifdef ENCODER_OPTIMIZE_INTERRUPTS
|
|
#undef ENCODER_OPTIMIZE_INTERRUPTS
|
|
#endif
|
|
|
|
#else
|
|
|
|
#ifdef ENCODER_OPTIMIZE_INTERRUPTS
|
|
#undef ENCODER_OPTIMIZE_INTERRUPTS
|
|
#endif
|
|
|
|
#endif
|