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Link Parameter Updata的问题



大家好,有几个关于Link Parameter Updata有些问题一直比较疑惑:

1. Central通过GAPCentralRole_UpdateLink函数,来updata link parameter,我追踪下去,最终是调用了

extern hciStatus_t  HCI_LE_ConnUpdateCmd

( uint16 connHandle,
uint16 connIntervalMin,
uint16 connIntervalMax,
uint16 connLatency,
uint16 connTimeout,
uint16 minLen,
uint16 maxLen );

但是HCI_LE_ConnUpdateCmd函数参数中并没有Instant,那么Instant是在哪里设置的呢?

2. Central调用GAPCentralRole_UpdateLink函数后,是如何判断updata link parameter成功与否呢?

3. Peripheral又在哪里接收parameter呢?

4. GAP_LINK_PARAM_UPDATE_EVENT对于Central和Peripheral来言,各代表什么含义呢?是指更新生效了,还是仅仅指命令发出去了呢?

谢谢大家!