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    BMA490l initialization problem python

    BMA490l initialization problem python

    LongToeBoy
    Member

    Hello. just got BMA490l accelerometer. i wanted to configure it from configuration array provided in github by bosch. array is posted in bma490l.c as a variable "const uint8_t bma490l_config_file[] = {....}"

    im trying to initialize the ic with python script:

    image.png

     

    but looks like the last print statement always prints 0x00. can anybody help me?

    5 REPLIES 5

    Vincent
    Community Moderator
    Community Moderator

    No, the code you showed are still not correct code and don't expect to work properly.

    You can refer to the function bma4_write_config_file in bma4.c in our Github for the process of download this configure string.

    I copied part of the code here for your reference since you are not able to write the whole block in one burst write. 

    rslt |= bma4_write_regs(BMA4_RESERVED_REG_5B_ADDR, &asic_lsb, 1, dev);

    if (rslt == BMA4_OK) {
    rslt |= bma4_write_regs(BMA4_RESERVED_REG_5C_ADDR, &asic_msb, 1, dev);

    if (rslt == BMA4_OK)
    rslt |= write_regs(BMA4_FEATURE_CONFIG_ADDR, (uint8_t *)stream_data, dev->read_write_len, dev);
    }

     

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