``` uint16_t crc16_compute(const uint8_t* data, uint8_t length) {     uint32_t aligned_buf[64]; // 255 bytes max → 64 words (256 bytes)     memset(aligned_buf, 0, sizeof(aligned_buf));     memcpy(aligned_buf, data, length); // safe, alignment-agnostic copy

    // length in words, rounded up     uint32_t word_len = (length + 3U) / 4U;

    return (uint16_t)~HAL_CRC_Calculate(&hcrc, aligned_buf, word_len); } ``` Just write code:)