• 状态
  • 已锁定 已锁定
  • 回复 2 回复
  • 订户 53 订户
  • 视图 3819 视图
  • 用户 0 会员在此处
选项
选项
相关

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

求STM32和BQ76930通信例程

huashi cai
Prodigy 101 points
Other Parts Discussed in Thread: BQ76930

各位大佬，谁做过bq76930和STM32通信的吗，请教一下程序要怎么写的？本人是一名学生，想请教一下大家，最好有例程分享一下，我的邮箱2982148529@qq.com.

  • 0
    TI__Guru**** 308311 points

    HI

       TI网站上只提供了与MCU通讯的说明：  http://www.ti.com.cn/cn/lit/an/slva626b/slva626b.pdf

       主要是参考I2C部分，是C2000还是MCU不是重点。

  • 0 回复 Johnsin Tao
    Prodigy 101 points

    你们的参考程序主函数就这么点东西，实现了什么功能？有点看得不是很懂，求解析一下下面这段程序的意思和实现功能，谢谢。

    int main(void)
    {
    int Result;

    WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer

    DISABLE_INT;

    ClockInitialise();

    I2CInitialise();

    InitialisebqMaximo();

    while(1)
    {
    Result = UpdateVoltageFromBqMaximo();
    }

    return Result;
    }

    int UpdateVoltageFromBqMaximo()
    {
    int Result = 0, i = 0;
    unsigned char *pRawADCData = NULL;
    unsigned int iTemp = 0;
    unsigned long lTemp = 0;

    Result = I2CReadBlockWithCRC(BQMAXIMO, \
    VC1_HI_BYTE, \
    &(Registers.VCell1.VCell1Byte.VC1_HI), \
    30);

    pRawADCData = &Registers.VCell1.VCell1Byte.VC1_HI;
    for (i = 0; i < 15; i++)
    {
    iTemp = (unsigned int)(*pRawADCData << 8) + *(pRawADCData + 1);
    lTemp = ((unsigned long)iTemp * iGain)/1000;
    lTemp += Registers.ADCOffset;
    CellVoltage[i] = lTemp;
    pRawADCData += 2;
    }

    return Result;
    }

    int InitialisebqMaximo()
    {
    int result = 0;

    Registers.Protect1.Protect1Bit.SCD_DELAY = SCDDelay;
    Registers.Protect1.Protect1Bit.SCD_THRESH = SCDThresh;
    Registers.Protect2.Protect2Bit.OCD_DELAY = OCDDelay;
    Registers.Protect2.Protect2Bit.OCD_THRESH = OCDThresh;
    Registers.Protect3.Protect3Bit.OV_DELAY = OVDelay;
    Registers.Protect3.Protect3Bit.UV_DELAY = UVDelay;

    result = GetADCGainOffset();

    Gain = (365 + ((Registers.ADCGain1.ADCGain1Byte & 0x0C) << 1) + ((Registers.ADCGain2.ADCGain2Byte & 0xE0)>> 5)) / 1000.0;
    iGain = 365 + ((Registers.ADCGain1.ADCGain1Byte & 0x0C) << 1) + ((Registers.ADCGain2.ADCGain2Byte & 0xE0)>> 5);

    Registers.OVTrip = (unsigned char)((((unsigned short)((OVPThreshold - Registers.ADCOffset)/Gain + 0.5) - OV_THRESH_BASE) >> 4) & 0xFF);
    Registers.UVTrip = (unsigned char)((((unsigned short)((UVPThreshold - Registers.ADCOffset)/Gain + 0.5) - UV_THRESH_BASE) >> 4) & 0xFF);

    result = ConfigureBqMaximo();

    return result;
    }