PGA_set_reset_pre_PGA_gain()

void PGA_set_reset_pre_PGA_gain	(	uint8_t	scheda_su_scheda_giu,
		uint8_t	canale,
		uint8_t	set_2_reset_1_idle_0
	)

Here the 2 digital signals from the trimmer are exploited to set the gain of the input stage of the PGA.

Parameters

[in]	scheda_su_scheda_giu	one of the 2 boards that the postfrontend manages
[in]	canale	the channel for which we need to manage the trimmer
[in]	set_2_reset_1_idle_0	if 1 the gain is at 10, if 0 the gain is 1

Returns

No Parameters

void PGA_set_reset_pre_PGA_gain (uint8_t scheda_su_scheda_giu, uint8_t canale, uint8_t set_2_reset_1_idle_0  ){
    
        uint8_t spedizione[2];
        if( scheda_su_scheda_giu) scheda_su_scheda_giu=6;
 
        spedizione[1] = contenuto_trimmer_detector[canale + scheda_su_scheda_giu][0] ; //The trimmer content has to be 
                                                                    //written each time the digital signals are set/reset
      
    I2C_mux_select_ch(  scheda_su_scheda_giu, I2C_mainboard,   address_detector_bias_trimmer[canale].quale_I2C);  //Select the I2C to be used   
    
    if( set_2_reset_1_idle_0) {  //We operate only if we have to set
        
            spedizione[0] = set_2_reset_1_idle_0 << 1 ;  //The 2 bits are at position 1 and 2 of the byte
        
            
            I2C_mux->MasterTransmit( (uint8_t) address_detector_bias_trimmer[canale].indirizzo_I2C , spedizione, 2,false); //Write the selected trimmer of the selcted channel
            
            while( I2C_mux->GetStatus().busy);  // White transmission complete
            
            Aspetta_tanti_ms(wait_time_for_rele_setting);
            if(Error_bad_operation) ERROR_codifica_errore( scheda_su_scheda_giu, error_address_I2C0 , I2C_Error_trimmer_0  + canale,1);
    }       
        
        spedizione[0] =set_pre_pga_idle; // Both switches OFF, this operation is made always and can be made at the initialization
        
        I2C_mux->MasterTransmit( (uint8_t) address_detector_bias_trimmer[canale].indirizzo_I2C , spedizione, 1,false); ///Set the trimmer to read
        
        while( I2C_mux->GetStatus().busy);  // White transmission complete
        
        I2C_mux->MasterReceive( address_detector_bias_trimmer[canale].indirizzo_I2C, &tappo, 1,false);  //Read back, the trimmer value
        
        while( I2C_mux->GetStatus().busy){};
        
                contenuto_trimmer_detector[canale + scheda_su_scheda_giu][0]  = tappo;
}

Definition at line 143 of file DAC_PGA.c.