BF504_loader/xpander.c at master · rauschenbach/BF504_loader · GitHub

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/**************************************************************************************
 * Â ýòîì ôàéëå áóäåò ïðîèçâîäèöà è íàñòðîéêà SPORT äëÿ ñâÿçè â âíåøíåé Àòìåãîé
 * ïëþñ ïîñûëêà èñõîäÿùèõ êîìàíä è ïðèåì äàííûõ ñ ÀÖÏ è áèòîâ ñ âõîäíûõ ïîðòîâ
 * Âûçîâû ýòèõ ôóíêöèé äîëæíû ïðîèçâîäèòüñÿ ÈÑÊËÞ×ÈÒÅËÜÍÎ âíóòðè îñíîâíîãî öèêëà!!!
***************************************************************************************/
#include "xpander.h"
#include "timer0.h"
#include "sport0.h"
#include "ports.h"
#include "rele.h"
#include "pll.h"


static u8 XPANDER_read_byte(u8);
static void XPANDER_write_byte(u8, u8);
static void XPANDER_set_bit(u8, u8);
static void XPANDER_clear_bit(u8, u8);
static void XPANDER_toggle_bit(u8, u8);
static void XPANDER_adc_init(void);
static u16 XPANDER_adc_get_data(u8);


section("L1_code")
void pin_set(u8 port, u8 pin)
{
    u8 dir = port - 1;
    XPANDER_set_bit(port, 1 << pin);
    XPANDER_set_bit(dir, 1 << pin);
}

section("L1_code")
void pin_clr(u8 port, u8 pin)
{
    u8 dir = port - 1;
    XPANDER_clear_bit(port, 1 << pin);
    XPANDER_set_bit(dir, 1 << pin);
}

section("L1_code")
void pin_hiz(u8 port, u8 pin)
{
    u8 dir = port - 1;
    XPANDER_clear_bit(port, 1 << pin);
    XPANDER_clear_bit(dir, 1 << pin);
}

section("L1_code")
u8 pin_get(u8 port)
{
    return XPANDER_read_byte(port);
}


/****************************************************************************************
 * ×òåíèå áàéòà èç ïîðòà - âñå ÷òåíèå èäåò çà 3 öûêëà
 * â ÷òåíèè ïåðâàÿ êîìàíäà òåïåðü "0"
 * ïàðàìåòð: àäðåñ
 * âîçâðàò:  äàííûå
 ****************************************************************************************/
section("L1_code")
static u8 XPANDER_read_byte(u8 addr)
{
    u8 byte;

    SPORT0_write_read(0);
    delay_us(10);
    SPORT0_write_read(addr);
    delay_us(10);
    byte = SPORT0_write_read(0);
    delay_us(10);

    return byte;
}


/***************************************************************************************
 * Ïîñûëêà èñõîäÿùåé êîìàíäû ïî SPORT â åêñïàíäåð, çàïèñü èäåò çà 3 öûêëà
 * çàäåðæêà ìåæäó ïîñûëêàìè - 10 ìêñ. Åêñïàíäåð âûïîëíÿåò îäíó êîìàíäó çà 0.125 ìêñ
 * â çàïèñè ïåðâàÿ êîìàíäà òåïåðü "0x80"
 * ïàðàìåòð: àäðåñ, äàííûå
 * âîçâðàò:  íåò
  ***************************************************************************************/
section("L1_code")
static void XPANDER_write_byte(u8 addr, u8 data)
{
    SPORT0_write_read(0x80);
    delay_us(10);
    SPORT0_write_read(addr);
    delay_us(10);
    SPORT0_write_read(data);
    delay_us(10);
}

/***************************************************************************************
 * Óñòàíîâêà 1-ãî áèòà ïî àäðåñó
 * çàäåðæêà ìåæäó ïîñûëêàìè - 10 ìêñ. Åêñïàíäåð âûïîëíÿåò îäíó êîìàíäó çà 0.125 ìêñ
 * ïåðâàÿ êîìàíäà òåïåðü "0x20"
 * ïàðàìåòð: àäðåñ, äàííûå
 * âîçâðàò:  íåò
  ***************************************************************************************/
section("L1_code")
static void XPANDER_set_bit(u8 addr, u8 data)
{
    SPORT0_write_read(0x20);
    delay_us(10);
    SPORT0_write_read(addr);
    delay_us(10);
    SPORT0_write_read(data);
    delay_us(10);
}


/***************************************************************************************
 * Ñáðîñ 1-ãî áèòà ïî àäðåñó
 * çàäåðæêà ìåæäó ïîñûëêàìè - 10 ìêñ. Åêñïàíäåð âûïîëíÿåò îäíó êîìàíäó çà 0.125 ìêñ
 * ïåðâàÿ êîìàíäà òåïåðü "0x10"
 * ïàðàìåòð: àäðåñ, äàííûå
 * âîçâðàò:  íåò
  ***************************************************************************************/
section("L1_code")
static void XPANDER_clear_bit(u8 addr, u8 data)
{
    SPORT0_write_read(0x10);
    delay_us(10);
    SPORT0_write_read(addr);
    delay_us(10);
    SPORT0_write_read(data);
    delay_us(10);
}


/***************************************************************************************
 * Ïåðåêëþ÷åíèå 1-ãî áèòà ïî àäðåñó
 * çàäåðæêà ìåæäó ïîñûëêàìè - 10 ìêñ. Åêñïàíäåð âûïîëíÿåò îäíó êîìàíäó çà 0.125 ìêñ
 * ïåðâàÿ êîìàíäà òåïåðü "0x10"
 * ïàðàìåòð: àäðåñ, äàííûå
 * âîçâðàò:  íåò
  ***************************************************************************************/
section("L1_code")
static void XPANDER_toggle_bit(u8 addr, u8 data)
{
    SPORT0_write_read(0x40);
    delay_us(10);
    SPORT0_write_read(addr);
    delay_us(10);
    SPORT0_write_read(data);
    delay_us(10);
}