【RA4M2设计挑战赛】ISL29035模块硬件IIC驱动

先试下功能，所以先找了别人代码试用一下，暂未调通，待调通再封装下模块代码。

首先用RASC配置IIC，跟驱动HS3003一样，配置成IIC_Master。
参考了下数据手册，大致初始化接口如下

int32_t DigitalLightISL29035_init(void)
{
    uint8_t reg = 0;
    reg=   DigitalLightISL29035_readRegister( 0x0F);//CHIP_ID->0x0f
    //Serial.println(reg, HEX);
    uint8_t chip_id = (reg >> 3) & 0x7;
    if (chip_id != 0x5) {
        return -1;
    }

    //清除BOUT位
    DigitalLightISL29035_writeRegister(0x0F, reg & 0x7f);//CHIP_ID->0x0f

    //确保芯片处于停止模式
    DigitalLightISL29035_writeRegister( 0x00, 0);//COMMAND_I->0x00
    //设置分辨率
    DigitalLightISL29035_writeRegister(0x01, full_scale_lux_range | (integration_time << 2) );//COMMAND_2->0x01
    //设置为单次模式
    DigitalLightISL29035_writeRegister( 0x00, 0x40);//COMMAND_I->0x00
    return 0;
}

写接口如下

void DigitalLightISL29035_writeRegister( int reg_address, uint8_t val) 
{

    uint8_t ii[2]={0x00,0x00};
    ii[0] = reg_address;
    ii[1] = val;


    R_SCI_I2C_Write(&HS3003_I2C3, ii, 0x02, false);
    /* Since there is nothing else to do, block until Callback triggers*/
    //while ((I2C_MASTER_EVENT_TX_COMPLETE != i2c_event) && timeout_ms)
    while ((I2C_MASTER_EVENT_TX_COMPLETE != i2c_event1) && timeout_ms1>0)
    {
       R_BSP_SoftwareDelay(1U, BSP_DELAY_UNITS_MICROSECONDS);
       timeout_ms1--;
    }
    if (I2C_MASTER_EVENT_ABORTED == i2c_event1)
    {
       __BKPT(0);
    }
    /* Read data back from the I2C slave */
    i2c_event1 = I2C_MASTER_EVENT_ABORTED;
    timeout_ms1           = 100000;


}

读接口如下

uint8_t DigitalLightISL29035_readRegister(uint8_t reg_address)
{

    uint8_t value;
    R_SCI_I2C_Write(&HS3003_I2C3, &reg_address, 0x01, false);
    /* Since there is nothing else to do, block until Callback triggers*/
    while ((I2C_MASTER_EVENT_TX_COMPLETE != i2c_event1) && timeout_ms1>0)
    {
        R_BSP_SoftwareDelay(1U, BSP_DELAY_UNITS_MICROSECONDS);
        timeout_ms1--;
        }
    if (I2C_MASTER_EVENT_ABORTED == i2c_event1)
    {
        __BKPT(0);
        }
    /* Read data back from the I2C slave */
    i2c_event1 = I2C_MASTER_EVENT_ABORTED;
    timeout_ms1           = 100000;

    /* Read data from I2C slave */
    R_SCI_I2C_Read(&HS3003_I2C3, &value, 0x01, false);
    while ((I2C_MASTER_EVENT_RX_COMPLETE != i2c_event1) && timeout_ms1)
    {
        R_BSP_SoftwareDelay(1U, BSP_DELAY_UNITS_MILLISECONDS);
        timeout_ms1--;
    }
    if (I2C_MASTER_EVENT_ABORTED == i2c_event1)
    {
        __BKPT(0);
    }

    i2c_event1 = I2C_MASTER_EVENT_ABORTED;
    timeout_ms1           = 100000;
    return value;
}

获取数据代码如下：

uint32_t DigitalLightISL29035_readIRLux(void) {
    uint16_t data = 0;
    uint8_t l, h;
    //设置为单次模式
    DigitalLightISL29035_writeRegister( 0x00, 0x40);
    //等待时间
    if(integration_time==0)
    {
        R_BSP_SoftwareDelay(105, BSP_DELAY_UNITS_MILLISECONDS);
    }
    else if(integration_time==1 || integration_time==2)
    {
        R_BSP_SoftwareDelay(7, BSP_DELAY_UNITS_MILLISECONDS);
    }
    else if(integration_time==3)
    {
        R_BSP_SoftwareDelay(1, BSP_DELAY_UNITS_MILLISECONDS);
    }

    l=DigitalLightISL29035_readRegister(0x02);//DATA_L->0x02
    h=DigitalLightISL29035_readRegister(0x03);//DATA_H->0x03

    data=(h << 8) | l;

    uint32_t ranges=0;
    if(full_scale_lux_range==0)
        ranges=1000;
    else if(full_scale_lux_range==1)
        ranges=4000;
    else if(full_scale_lux_range==2)
        ranges=16000;
    else if(full_scale_lux_range==3)
        ranges=64000;

    uint32_t adc_count_max=0;
    if(integration_time==0)
        adc_count_max=65536;
    else if(integration_time==1)
        adc_count_max=4096;
    else if(integration_time==2)
        adc_count_max=256;
    else if(integration_time==3)
        adc_count_max=16;
    return ranges * (uint32_t)data /adc_count_max;


}

应用代码（因为地址都是0x44，我这边用的都是同一个口，所以线程名称先用HS3003的顶一下）

void HS3003_Task_entry(void * pvParameters)
                {
                    FSP_PARAMETER_NOT_USED(pvParameters);
                    DigitalLightISL29035_init();

                    /* TODO: add your own code here */
                    while(1)
                    {
                        ISL29035Data = DigitalLightISL29035_readIRLux();
                        vTaskDelay(200);
                    }
                }