sggt/App/RN7302/rn7302.c

#include "FreeRTOS.h"
#include "task.h"
#include "utils.h"
#include "rn7302.h"
#include "gpio.h"
#include "spi.h"
#include "mux_signal.h"

rns7302_data_reg rns7302_data;

void rn7302_cs(cs_state_type state)
{
    if (state == CS_L)
    {
        RN7302_CS(GPIO_PIN_RESET);
    }
    else
    {
        RN7302_CS(GPIO_PIN_SET);
    }
}

void rn7302_transmit_data(uint8_t *data, uint16_t len)
{
    HAL_SPI_Transmit(&hspi2, data, len, 1000);
}

void rn7302_receive_data(uint8_t *data, uint16_t len)
{
    HAL_SPI_Receive(&hspi2, data, len, 1000);
}

ErrorStatus rn7302_write(uint16_t reg, uint8_t *pbuf, uint8_t len)
{
    uint8_t i, temp, chksum, repeat;
    ErrorStatus err = SUCCESS;

    if ((len == 0) || (len > 4))
        return (ERROR);

    for (repeat = 3; repeat != 0; repeat--)
    {
        rn7302_cs(CS_L);
        vTaskDelay(1);

        temp = (uint8_t)(reg & 0x00ff);
        chksum = temp;
        rn7302_transmit_data(&temp, 1); // first write hight Addr
        temp = (((uint8_t)(reg >> 4)) & 0xf0) + 0x80;
        chksum += temp;
        rn7302_transmit_data(&temp, 1);

        for (i = len; i > 0; i--)
        {
            rn7302_transmit_data(pbuf + i - 1, 1); // first write high data
            chksum += pbuf[i - 1];
        }
        chksum = ~chksum;
        rn7302_transmit_data(&chksum, 1);
        //		PinWrite_ADCS(1);
        //		NOP();
        // 读WData寄存器检查-----------------------
        //		PinWrite_ADCS(0);
        //		NOP();
        temp = 0x8D;
        rn7302_transmit_data(&temp, 1);
        chksum = temp;
        temp = ((uint8_t)(0x018D >> 4) & 0xf0);
        rn7302_transmit_data(&temp, 1);
        chksum += temp;
        for (i = 3; i > 0; i--)
        {
            rn7302_receive_data(&temp, 1);
            if (len >= i)
            {
                if (temp != pbuf[i - 1])
                {
                    err = ERROR;
                    break;
                }
            }
            chksum += temp;
        }
        if (err == SUCCESS)
        {
            chksum = ~chksum;
            rn7302_receive_data(&temp, 1);
            if (temp != chksum)
                err = ERROR;
        }

        rn7302_cs(CS_H);

        if (err == SUCCESS)
            break;
        vTaskDelay(1);
    }
    return (err);
}

ErrorStatus rn7302_read(uint16_t reg, uint8_t *pbuf, uint8_t len)
{
    uint8_t i, temp, chksum, repeat;
    ErrorStatus err = SUCCESS;

    if (len == 0)
        return (ERROR);

    for (repeat = 3; repeat != 0; repeat--)
    {
        rn7302_cs(CS_L);
        vTaskDelay(1);

        temp = (uint8_t)(reg & 0x00ff);
        chksum = temp;
        rn7302_transmit_data(&temp, 1); // first write hight Addr
        temp = ((uint8_t)(reg >> 4)) & 0xf0;
        chksum += temp;
        rn7302_transmit_data(&temp, 1);

        for (i = len; i > 0; i--)
        {
            rn7302_receive_data(pbuf + i - 1, 1);
            chksum += pbuf[i - 1];
        }
        chksum = ~chksum;
        rn7302_receive_data(&temp, 1);
        if (temp != chksum)
            err = ERROR;
        //		PinWrite_ADCS(1);
        //---读RData寄存器检查------------------------------------
        if (err != SUCCESS)
            continue;
        temp = 0x8c;
        rn7302_transmit_data(&temp, 1); // 读上一次SPI 读出的数据
        chksum = temp;
        temp = ((uint8_t)(0x018C >> 4) & 0xf0);
        rn7302_transmit_data(&temp, 1);
        chksum += temp;
        for (i = 4; i > 0; i--)
        {
            rn7302_receive_data(&temp, 1);
            if (len >= i)
            {
                if (temp != pbuf[i - 1])
                {
                    err = ERROR;
                    break;
                }
            }
            chksum += temp;
        }
        if (err == SUCCESS)
        {
            chksum = ~chksum;
            rn7302_receive_data(&temp, 1);
            if (temp != chksum)
                err = ERROR;
        }
        rn7302_cs(CS_H);
        if (err == SUCCESS)
            break;
        vTaskDelay(1);
    }
    rn7302_cs(CS_H);
    return (err);
}

void rn7302_Init(void)
{
    uint8_t cfg_reg[3];

    cfg_reg[0] = 0xe5; // 写使能位
    rn7302_write(0x0180, cfg_reg, 1);
    cfg_reg[0] = 0xa2; // 切换到EMM模式
    rn7302_write(0x0181, cfg_reg, 1);
    cfg_reg[0] = 0x35; // 配置六路ADC增益PGA为2倍增益
    cfg_reg[1] = 0x55; // 配置六路ADC增益PGA为2倍增益
    rn7302_write(0x0183, cfg_reg, 2);
    cfg_reg[0] = 0x40;
    cfg_reg[1] = 0x00;
    cfg_reg[2] = 0x7f; // 将 IA/IB/IC/UA/UB/UC 六路ADC 的高通关闭
    rn7302_write(0x0161, cfg_reg, 3);
}

void get_rn7302_ch_value(void)
{
    uint8_t i;
    // 读电流
    for (i = 0; i < 3; i++)
    {
        rn7302_read(0x000b + i, (uint8_t *)rns7302_data.I[i], 4);
    }
    // 读电压
    for (i = 0; i < 3; i++)
    {
        rn7302_read(0x0007 + i, (uint8_t *)rns7302_data.V[i], 4);
    }
}

static void fun_int2float(int32_t *src, float32 *dst)
{
    if (!src || !dst)
        return;

    uint32_t temp;
    uint8_t i;

    temp = 0;
    for (i = 0; i < 4; i++)
    {
        temp |= src[i];
        temp <<= 8;
    }
    *dst = (float32)temp;
}

void fun_rn7302_operate(uint8_t channel, float32 *data_pv)
{
    if (!data_pv)
        return;

    get_rn7302_ch_value();

    if (channel == CH5_IN_VOL)
    {
        fun_int2float((int32_t *)rns7302_data.V[0], data_pv);
    }
    else if (channel == CH7_IN_CUR)
    {
        fun_int2float((int32_t *)rns7302_data.I[1], data_pv);
    }
    else if (channel == CH10_IN_RTD)
    {
        fun_int2float((int32_t *)rns7302_data.V[3], data_pv);
    }
}