/* SFR PAGE DEFINITIONS */

#define CONFIG_PAGE       0x0F    /* SYSTEM AND PORT CONFIGURATION PAGE */
#define LEGACY_PAGE       0x00    /* LEGACY SFR PAGE */
#define TIMER01_PAGE      0x00    /* TIMER 0 AND TIMER 1 */
#define CPT0_PAGE         0x01    /* COMPARATOR 0 */
#define CPT1_PAGE         0x02    /* COMPARATOR 1 */
#define UART0_PAGE        0x00    /* UART 0 */
#define UART1_PAGE        0x01    /* UART 1 */
#define SPI0_PAGE         0x00    /* SPI 0 */
#define EMI0_PAGE         0x00    /* EXTERNAL MEMORY INTERFACE */
#define ADC0_PAGE         0x00    /* ADC 0 */
#define ADC2_PAGE         0x02    /* ADC 2 */
#define SMB0_PAGE         0x00    /* SMBUS 0 */
#define TMR2_PAGE         0x00    /* TIMER 2 */
#define TMR3_PAGE         0x01    /* TIMER 3 */
#define TMR4_PAGE         0x02    /* TIMER 4 */
#define DAC0_PAGE         0x00    /* DAC 0 */
#define DAC1_PAGE         0x01    /* DAC 1 */
#define PCA0_PAGE         0x00    /* PCA 0 */
#define PLL0_PAGE         0x0F    /* PLL 0 */
#define MAC0_PAGE         0x03    /* MAC 0 */

   SFRPAGE = CONFIG_PAGE;

   SFRPAGE = CPT0_PAGE;

void Comparator_Init()
{
    int i = 0;
    SFRPAGE   = CPT0_PAGE;
    CPT0CN    = 0x85;
    for (i = 0; i < 60; i++);  // Wait 20us for initialization
    CPT0CN    &= ~0x30;
}

void Oscillator_Init()
{
    SFRPAGE   = CONFIG_PAGE;
    OSCICN    = 0xC7;
    SFRPAGE   = ACTIVE_PAGE;
}

#define  CONFIG_PAGE       0x0F        // System and Port Configuration Page
#define  ACTIVE_PAGE       0x00        // Active Use Page
#define  CAN0_PAGE         0x0C        // CAN0 Registers

sfr SFRPAGE  = 0x84;    /* SFR PAGE SELECT                              */
sfr SFRNEXT  = 0x85;    /* SFR STACK NEXT PAGE                          */
sfr SFRLAST  = 0x86;    /* SFR STACK LAST PAGE                          */

sfr SFRPGCN  = 0x96;    /* SFR PAGE CONTROL

/* SFR PAGE DEFINITIONS */
#define  CONFIG_PAGE       0x0F     /* SYSTEM AND PORT CONFIGURATION PAGE */
#define  LEGACY_PAGE       0x00     /* LEGACY SFR PAGE                    */
#define  TIMER01_PAGE      0x00     /* TIMER 0 AND TIMER 1                */
#define  CPT0_PAGE         0x01     /* COMPARATOR 0                       */
#define  CPT1_PAGE         0x02     /* COMPARATOR 1                       */
#define  UART0_PAGE        0x00     /* UART 0                             */
#define  UART1_PAGE        0x01     /* UART 1                             */
#define  SPI0_PAGE         0x00     /* SPI 0                              */
#define  EMI0_PAGE         0x00     /* EXTERNAL MEMORY INTERFACE          */
#define  ADC0_PAGE         0x00     /* ADC 0                              */
#define  ADC2_PAGE         0x02     /* ADC 2                              */
#define  SMB0_PAGE         0x00     /* SMBUS 0                            */
#define  TMR2_PAGE         0x00     /* TIMER 2                            */
#define  TMR3_PAGE         0x01     /* TIMER 3                            */
#define  TMR4_PAGE         0x02     /* TIMER 4                            */
#define  DAC0_PAGE         0x00     /* DAC 0                              */
#define  DAC1_PAGE         0x01     /* DAC 1                              */
#define  PCA0_PAGE         0x00     /* PCA 0                              */
#define  REF0_PAGE         0x00     /**/
#define  PLL0_PAGE         0x0F     /* PLL 0

#include <c8051f120.h>                 // SFR declarations
#include <stdio.h>
//#include <intrins.h>
//#include <REG52.H>


void Comparator_Init()
{
    char SFRPAGE_SAVE = SFRPAGE;
    int i = 0;
    SFRPAGE   = CPT0_PAGE;
    CPT0CN    = 0x85;
    for (i = 0; i < 60; i++);  // Wait 20us for initialization
    //CPT0CN    &= ~0x30;
    SFRPAGE = SFRPAGE_SAVE;
}

void Port_IO_Init()
{
    // P0.0  -  CP0 (Cmpr0), Open-Drain, Digital
    
    char SFRPAGE_SAVE = SFRPAGE;
    SFRPAGE   = CONFIG_PAGE;
    XBR0      = 0x80;
    XBR2      = 0x40;
    SFRPAGE = SFRPAGE_SAVE;
}

void Oscillator_Init()
{
    char SFRPAGE_SAVE = SFRPAGE;
    SFRPAGE   = CONFIG_PAGE;
    OSCICN    = 0x83;
    SFRPAGE = SFRPAGE_SAVE;
}

// Initialization function for device,
// Call Init_Device() from your main program
void Init_Device(void)
{
    Comparator_Init();
    Port_IO_Init();
    Oscillator_Init();
}

void main(void)
{
   SFRPAGE = CONFIG_PAGE;

   WDTCN = 0xDE;                  // Disable watchdog timer
   WDTCN = 0xAD;
    
   Init_Device();                
   while (1);
}

BUS_PORT->BSRR=(data<<BUS_PIN_0)|(((uint32_t)((~data)<<BUS_PIN_0)&BUS_MASK)<<0x10);

#include <c8051f120.h>                
#include <stdio.h>
#define zz 50;
sbit LED_BLINK = P1^6;
unsigned int counter = 50;



void Port_Init (void);                
void Timer0_Init (void);

void Oscillator_Init()
{
    char SFRPAGE_SAVE = SFRPAGE;
    int i = 0;
    SFRPAGE   = CONFIG_PAGE;
    OSCICN    = 0x81;
    CCH0CN    &= ~0x20;
    SFRPAGE   = LEGACY_PAGE;
    FLSCL     = 0xB0;
    SFRPAGE   = CONFIG_PAGE;
    CCH0CN    |= 0x20;
    PLL0CN    |= 0x01;
    PLL0DIV   = 0x01;
    PLL0FLT   = 0x0F;
    PLL0MUL   = 0x10;
    for (i = 0; i < 15; i++);  // Wait 5us for initialization
    PLL0CN    |= 0x02;
    while ((PLL0CN & 0x10) == 0);
    CLKSEL    = 0x02;
    SFRPAGE = SFRPAGE_SAVE;
}


void Port_Init (void)
{
   char SFRPAGE_SAVE = SFRPAGE;        

   SFRPAGE = CONFIG_PAGE;              

   XBR2 = 0x40;                        
   P1MDOUT = 0x40;                    

   SFRPAGE = SFRPAGE_SAVE;            
}

void Timer0_Init(void)
{
   char SFRPAGE_SAVE = SFRPAGE;        // Save Current SFR page

   SFRPAGE = TIMER01_PAGE;             // Set SFR page

   TH0 = 0xDB;
   TL0 = 0xF2;                         // Init Timer0 Low register
   TMOD = 0x01;                        // Timer0 in 16-bit mode
   CKCON = 0x02;                       // Timer0 uses a 1:48 prescaler
   ET0 = 1;                            // Timer0 interrupt enabled
   TCON = 0x10;                        // Timer0 ON

   SFRPAGE = SFRPAGE_SAVE;             // Restore SFR page
}

void Timer0_ISR (void) interrupt 1
{
//counter = zz;                        // Здесь было counter = 50;
TF0 = 0;
counter--;
if (counter == 0)
{
   counter = zz;                      // Здесь было counter = 50;
   LED_BLINK = ~LED_BLINK;
}
TH0 = 0xDB;
TL0 = 0xF2;
}

void main(void)
{
   WDTCN = 0xDE;                       // Disable watchdog timer
   WDTCN = 0xAD;

   Oscillator_Init();
   Timer0_Init ();                     // Initialize the Timer0
   Port_Init ();                       // Init Ports
   EA = 1;                             // Enable global interrupts
   //LED_BLINK = 0;
   while (1);
}

#define zz 50;
unsigned int counter = zz;