#include "main.h"
#include "DACx0004_hSPI.h"

void DACx0004_Write(unsigned int* datacode)
{
    DAC_nSYNC(0);
    for(int i=0;i<DAISY_CHAIN_NUM;i++)
    {
        HAL_SPI_Transmit(&DAC_hSPI,datacode+i,4,10);
        //Use LA to confirm if the send data is correct
    }
    DAC_nSYNC(1);
}

void DACx0004_Write_Sync(unsigned int cmd)
{
    DAC_nSYNC(0);
    unsigned int cmd_addr=cmd;
    for(int i=0;i<DAISY_CHAIN_NUM;i++)
    {
        HAL_SPI_Transmit(&DAC_hSPI,&cmd_addr,4,10);
        //Use LA to confirm if the send data is correct
    }
    DAC_nSYNC(1);
}

void DACx0004_Init()
{
    DACx0004_Clear(CLEAR_MODE_MID);
    if(DAISY_CHAIN_NUM!=1)
    {
        for(char i=0;i<DAISY_CHAIN_NUM;i++)
        {
            DAC_nSYNC(0);
            for(char j=0;j<i;j++)
            {
                unsigned int nop_cmd=NO_OPERATION;
                HAL_SPI_Transmit(&DAC_hSPI,&nop_cmd,4,10);
            }
            unsigned int daisy_chain_cmd=DAISY_CHAIN_MODE;
            HAL_SPI_Transmit(&DAC_hSPI,&daisy_chain_cmd,4,10);
            DAC_nSYNC(1);
        }
    }
}

void DACx0004_Clear(unsigned int clear_mode)
{
    DACx0004_Write_Sync(CLEAR_MODE_REG||clear_mode);
}

void DACx0004_setVoltage(unsigned int* reg_value)
{
    //the reg values should be like:
    // DAC1_ChA,DAC2_ChA,DAC1_ChB,DAC2_ChB......
    unsigned int cmdlist[4*DAISY_CHAIN_NUM]={0};
    for(int i=0;i<DAISY_CHAIN_NUM;i++)
    {
        cmdlist[4*i]=DACx0004_setVoltage_getCMD(CHANNELA,reg_value[4*i]);
        cmdlist[4*i+1]=DACx0004_setVoltage_getCMD(CHANNELB,reg_value[4*i+1]);
        cmdlist[4*i+2]=DACx0004_setVoltage_getCMD(CHANNELC,reg_value[4*i+2]);
        cmdlist[4*i+3]=DACx0004_setVoltage_getCMD(CHANNELD,reg_value[4*i+3]);
    }

    DACx0004_Write(cmdlist);
    //get the cmd list fron reg value voltage list
}

void DACx0004_DAC_Update()
{
    DAC_nLDAC(0);
    for(char i=0;i<100;i++)
    {
        nop();
    }
    DAC_nLDAC(1);
}

unsigned int DACx0004_setVoltage_getCMD(unsigned int chan_num,unsigned int reg_value)
{
    switch (chan_num)
    {
    case CHANNELA:
        return WRITE_TO_BUFFER_N||CHANNELA_ADDR||(reg_value<<4);
        break;
    case CHANNELB:
        return WRITE_TO_BUFFER_N||CHANNELB_ADDR||(reg_value<<4);
        break;
    case CHANNELC:
        return WRITE_TO_BUFFER_N||CHANNELC_ADDR||(reg_value<<4);
        break;
    case CHANNELD:
        return WRITE_TO_BUFFER_N||CHANNELD_ADDR||(reg_value<<4);
        break;
    default:
        return WRITE_TO_BUFFER_N||CHANNEL_ALL_ADDR||(reg_value<<4);
        break;
    }
    return 0;
}