[参考译文] TMAG5273：TMAG5273 ws 模式中断触发问题

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https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1290803/tmag5273-tmag5273-ws-mode-interrupt-triggered-problem

器件型号：TMAG5273

存在一个奇怪的问题、在触发阈值范围内、进入 ws 模式将立即唤醒。例如、如果当前磁场强度为1mT 且我将阈值设置为小于1.25mT、则会发生中断。然后、如果我将其配置为进入 ws 模式、它将立即被唤醒。唤醒后、我将其配置为在连续转换模式下运行大约10秒、并继续重复之前的操作。如果我将其配置为进入 ws 模式、它也会立即被唤醒。下面是两种切换模式的配置。

RetTypeDef hall_sensor_logic_set_continuous_mode(void)
{
    RetTypeDef ret = RET_OK;
    uint8_t value;

    if (g_op_mode == CONTINUOUS_MODE)
    {
        DEBUG_LOG_ERROR("[HALL] already in continuous mode.\r\n");
        return RET_OK;
    }
    g_op_mode = CONTINUOUS_MODE;

    DEBUG_LOG_ERROR("[HALL] set continuous mode.\r\n");

    value = 0x14;
    hall_sensor_hal_write_byte(TMAG5273_REG_DEVICE_CONFIG_1, &value);

    value = 0x87;
    hall_sensor_hal_write_byte(TMAG5273_REG_SENSOR_CONFIG_1, &value);

    value = 0x00;
    hall_sensor_hal_write_byte(TMAG5273_REG_INT_CONFIG_1, &value);

    value = 0x14;
    hall_sensor_hal_write_byte(TMAG5273_REG_SENSOR_CONFIG_2, &value);

    value = 0xC5;
    hall_sensor_hal_write_byte(TMAG5273_REG_MAG_GAIN_CONFIG, &value);

    value = 0x02;
    hall_sensor_hal_write_byte(TMAG5273_REG_DEVICE_CONFIG_2, &value);

    return ret;
}


RetTypeDef hall_sensor_logic_set_w_s_mode(void)
{
    RetTypeDef ret = RET_OK;
    uint8_t value;

    if (g_op_mode == W_S_MODE)
    {
        DEBUG_LOG_ERROR("[HALL] already in W&S mode.\r\n");
        return RET_OK;
    }
    g_op_mode = W_S_MODE;

    DEBUG_LOG_ERROR("[HALL] set W&S mode.\r\n");

    value = 0x14;
    hall_sensor_hal_write_byte(TMAG5273_REG_DEVICE_CONFIG_1, &value);

    value = 0x17;
    hall_sensor_hal_write_byte(TMAG5273_REG_SENSOR_CONFIG_1, &value);

    value = 0x20;
    hall_sensor_hal_write_byte(TMAG5273_REG_SENSOR_CONFIG_2, &value);

    value = 0x64;
    hall_sensor_hal_write_byte(TMAG5273_REG_INT_CONFIG_1, &value);

    value = 0x04;
    hall_sensor_hal_write_byte(TMAG5273_REG_X_THR_CONFIG, &value);

    value = 0x23;
    hall_sensor_hal_write_byte(TMAG5273_REG_DEVICE_CONFIG_2, &value);

    return ret;
}

2 年多前