module_universal_io/fw/modules/io/analog_input.c

#include "at32f403a_407.h"
#include "analog_input.h"
#include "shift_reg.h"
#include "utility.h"
#include "FreeRTOS.h"
#include "task.h"
#include <stdio.h>


uint8_t input_mux; // выход сдвигового регистра U1010 (управляет MUX 301, 401)
                   // мультиплексоры отвечат за коммутацию аналоговых входов и АЦП


//
void ai_connect_channel(uint8_t channel)
{
    if (channel < MUX_401_CH) 
    {
        input_mux &= 0x70;
    
        switch (channel)
        {
            case AN_INP_1: input_mux |= 0x03; break; // U301 Y3
            case AN_INP_2: input_mux |= 0x00; break; // U301 Y0
            case AN_INP_3: input_mux |= 0x05; break; // U301 Y5
            case AN_INP_4: input_mux |= 0x07; break; // U301 Y7
            case AN_INP_5: input_mux |= 0x06; break; // U301 Y6
            case AN_INP_6: input_mux |= 0x04; break; // U301 Y4
            case V_ISO_CL: input_mux |= 0x01; break; // U301 Y1
            case V_ISO   : input_mux |= 0x02; break; // U301 Y2
            default: break;
        }
    }
    else
    {
        input_mux &= 0x07;
        
        switch (channel)
        {
            case AN_INP_7: input_mux |= (0x04 << 4); break; // U401 Y4
            case AN_INP_8: input_mux |= (0x06 << 4); break; // U401 Y6
            case AN_INP_9: input_mux |= (0x07 << 4); break; // U401 Y7
            case AN_INP_10:input_mux |= (0x05 << 4); break; // U401 Y5
            case AN_INP_11:input_mux |= (0x02 << 4); break; // U401 Y2
            case AN_INP_12:input_mux |= (0x01 << 4); break; // U401 Y1
            case CRNT_LIM_U_BFR_R: input_mux  |= (0x00 << 4); break; // U401 Y0
            case CRNT_LIM_U_ABFR_R: input_mux |= (0x03 << 4); break; // U401 Y3
            default: break;
        }
    }
    
    printf("Analog input connect register: ");
    print_binary_byte(input_mux);
    printf("\r\n");
}


//
void ai_connect_test(void)
{
    ai_connect_channel(AN_INP_1);
    ai_connect_channel(AN_INP_2);
    ai_connect_channel(AN_INP_3);
    ai_connect_channel(AN_INP_4);
    ai_connect_channel(AN_INP_5);
    ai_connect_channel(AN_INP_6);
    ai_connect_channel(V_ISO_CL);
    ai_connect_channel(V_ISO);
    
    ai_connect_channel(AN_INP_7);
    ai_connect_channel(AN_INP_8);
    ai_connect_channel(AN_INP_9);
    ai_connect_channel(AN_INP_10);
    ai_connect_channel(AN_INP_11);
    ai_connect_channel(AN_INP_12);
    ai_connect_channel(CRNT_LIM_U_BFR_R);
    ai_connect_channel(CRNT_LIM_U_ABFR_R);
}