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    BME688 PARALLEL_MODE gas_index lost

    BME688 PARALLEL_MODE gas_index lost

    Pai
    New Poster

    The conditions are as follows:
    1. BME688 uses parallel mode
    2. Set 10 points, which are consistent with example (parallel_mode.c):
    /* Heater temperature in degree Celsius */
    uint16_t temp_prof[10] = { 320, 100, 100, 100, 200, 200, 200, 320, 320, 320 };
    /* Multiplier to the shared heater duration */
    uint16_t mul_prof[10] = { 5, 2, 10, 30, 5, 5, 5, 5, 5, 5 };
    3. Continuous sampling multiple times, no sleep


    Problems that arise:
    Query gas_index, you will find that occasionally there are several temperature points in the process that do not produce valid data.
    For example: gas_index 0~9 can query new valid data in most cases. But in a few cases, for example, when gas_index = 3, there is no data, and finally only data with gas_index of 0, 1, 2, 4, 5, 6, 7, 8, and 9 can be obtained.

    Is this normal? If it's not normal, how can I use it correctly? Looking forward to your answer, thank you!

    1 REPLY 1

    BSTRobin
    Community Moderator
    Community Moderator

    Hi Pai,

    You need to check the difference between your code and the reference code.

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