I2C_mux.h

Go to the documentation of this file.

 
/// \file
#include <stdint.h>
#include "Driver_I2C.h"
 
//I2C_mux 7 bits addres TCA9546APWR
#define I2C_mux_address_mainboard (uint8_t) 0x71   ///< I2C 7 bits address of the mainboard I2C_mux
#define I2C_mux_address_postmainboard_up (uint8_t) 0x72   ///< I2C 7 bits address of the postmainboard down I2C_mux
#define I2C_mux_address_postmainboard_down (uint8_t) 0x74   ///< I2C 7 bits address of the postmainboard up I2C_mux
#define I2C_postmainboard 0
#define I2C_mainboard 1
 
 
//IL valore va definito meglio
#define I2C_mux_Scheda_su 1     ///< Selection of the I2C0 for the upper board (purtroppo \'e contorto)
#define I2C_mux_Scheda_giu 0    ///< Selection of the I2C1 for lower board (purtroppo \'e contorto)
 
extern uint8_t scheda_su_scheda_giu_provvisorio;
extern volatile uint8_t scheda_su_scheda_giu;
 
extern volatile uint8_t I2C_corretto;  //! I2c transmission/reception was good
extern volatile uint8_t I2C_errore;    //! i2C transmission/reception was bad
 
#define I2C_mux_disabilita_tutto 0  ///< Disable the 4 I2C channelles
#define I2C_mux_abilita_0     (uint8_t) 1  ///< Enable channel 0
#define I2C_mux_abilita_1        I2C_mux_abilita_0 * (uint8_t) 2 ///< Enable channel 1
#define I2C_mux_abilita_2        I2C_mux_abilita_1 *(uint8_t)  2 ///< Enable channel 2
#define I2C_mux_abilita_3        I2C_mux_abilita_2 * (uint8_t) 2 ///< Enable channel 3
 
extern ARM_DRIVER_I2C * I2C_mux;
 
void I2C_mux_select_ch( uint8_t scheda_su_scheda_giu, uint8_t mainboard_postmainboard , uint8_t  canale_da_abilitare);