为什么这个时间会变化且成规律 这个时间代表什么
#define DEFAULT_DESIRED_MIN_CONN_INTERVAL 8
// Maximum connection interval (units of 1.25ms) if automatic parameter update request is enabled #define DEFAULT_DESIRED_MAX_CONN_INTERVAL 8
// Slave latency to use if automatic parameter update request is enabled #define DEFAULT_DESIRED_SLAVE_LATENCY 50
// Supervision timeout value (units of 10ms) if automatic parameter update request is enabled #define DEFAULT_DESIRED_CONN_TIMEOUT 500