counter0_mode1.h

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#ifndef STC15_COUNTER0_MODE1H
#define STC15_COUNTER0_MODE1H
 
#include <stdint.h>
#include <assert.h>
 
#include <interrupt.h>
 
#define T0 P34
 
#define INT0 P32
 
 
#define counter0_mode1_init()                   \
do {                                            \
    enable_mcu_interrupts();                    \
    enable_timer0_interrupt();                  \
                                                \
    TMOD &= 0xF0;                               \
    TMOD |= 0x05;                               \
                                                \
    TF0 = 0;                                    \
    TR0 = 0;                                    \
} while(0)   
 
 
 
#define counter0_mode1_start(value)             \
do {                                            \
    static_assert(value <= 0xffff, "value is too large"); \
                                                \
    const uint16_t _val = value;                \
    TH0 = (uint8_t) (_val >> 8);                \
    TL0 = (uint8_t) (_val & 0xFF);              \
                                                \
    TF0 = 0;                                    \
    TR0 = 1;                                    \
} while(0)
 
#define is_counter0_mode1_started() (TR0 == 1)
 
#define counter0_mode1_stop()                   \
do {                                            \
    TR0 = 0;                                    \
    TF0 = 0;                                    \
} while(0)
 
 
 
#define counter0_mode1_get_value() ((((uint16_t) TH0) << 8) | TL0)
 
#endif