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F_CPU unsigned long constant.

This commit is contained in:
Andrew Makousky 2020-09-11 18:06:42 -05:00
parent 1ebb48e1c9
commit d953828a1b
1 changed files with 4 additions and 4 deletions
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8
firmware/rtc/MacRTC.c
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@ -25,8 +25,8 @@
// 8 MHz clock is recommended for a physical device. For real-time
// simulation, a slower 400 kHz clock is needed.
#ifndef F_CPU
#define F_CPU 8000000
//#define F_CPU 400000 // DEBUG
#define F_CPU 8000000UL
//#define F_CPU 400000UL // DEBUG
#endif
#include <avr/io.h>
@ -150,7 +150,7 @@ const int group2Base = 0x08;
#endif
// Timer constants
#if F_CPU == 8000000
#if F_CPU == 8000000UL
#define PRESCALER_MASK 0b101 /* 1/1024 */
#define LIM_OFLOWS 15
#define LIM_REMAIN 66
@ -160,7 +160,7 @@ const int group2Base = 0x08;
#define DENOM_FRAC_REMAIN 4
#define MASK_FRAC_REMAIN (DENOM_FRAC_REMAIN-1)
#elif F_CPU == 400000
#elif F_CPU == 400000UL
#define PRESCALER_MASK 0b100 /* 1/256 */
#define LIM_OFLOWS 3
#define LIM_REMAIN 13