counter0_mode2.h

Go to the documentation of this file.

#ifndef STC15_COUNTER0_MODE2H
#define STC15_COUNTER0_MODE2H
 
#include <stdint.h>
#include <assert.h>
 
#include <interrupt.h>
 
#define T0 P34
 
#define INT0 P32
 
 
#define counter0_mode2_init()                   \
do {                                            \
    enable_mcu_interrupts();                    \
    enable_timer0_interrupt();                  \
                                                \
    TMOD &= 0xF0;                               \
    TMOD |= 0x06;                               \
                                                \
    TF0 = 0;                                    \
    TR0 = 0;                                    \
} while(0)
 
 
 
 #define counter0_mode2_start(value)            \
 do {                                           \
    static_assert(value <= 0xff, "value is too large"); \
                                                \
    TH0 = (uint8_t) value;                      \
                                                \
    TF0 = 0;                                    \
    TR0 = 1;                                    \
 } while(0)
 
#define counter0_mode2_stop()                   \
do {                                            \
    TR0 = 0;                                    \
} while (0)
 
#define is_counter0_mode2_started() (TR0 == 1 && (is_counter0_mode2_gate_opened() || INT0 == 1) )
 
 
 
#define counter0_mode2_get_value() (TL0)
 
#define counter0_mode2_set_value(value)         \
do {                                            \
    static_assert(value <= 0xff, "value is too large"); \
    TH0 = value;                                \
} while(0)
 
 
 
#define counter0_mode2_enable_P35_output()   (bit_set(INT_CLKO, SBIT0))
 
#define counter0_mode2_disable_P35_output()   (bit_clr(INT_CLKO, CBIT0))
 
#define is_counter0_mode2_P35_output_enabled()   (test_if_bit_set(INT_CLKO, SBIT0))
 
#define counter0_mode2_open_gate() (bit_clr(TMOD, CBIT3))
 
#define counter0_mode2_close_gate() (bit_set(TMOD, SBIT3))
 
#define is_counter0_mode2_gate_opened() (test_if_bit_cleared(TMOD, SBIT3))
 
 
#endif