CC2640 采用notify传输最大速率？

请问，CC2640 采用notify传输最大速率能有多大呢？

我做了个简单的试验：

使用周期函数循环发送数据包，200ms 触发一次，发送一个数据包（400byte），采用的是放入队列，产生信号量的方法，结果程序直接死了；

将周期加大，比如到800MS，就可以发送成功；或者将数据包数据量减少（比如100byte），在200ms内依然可以发送。

所以我的理解是采用notify发送，速度也不是很快对吗？

上面试验应该和我程序的堆设置无关，堆已经足够大

cc2540据说国外测试可以达到每秒4k字节以上！

我的是CC2640

现在我是每隔200毫秒发送一个440字节的数据，基本是一发送就死机

你好，

CC2640在使能BT4.2的协议栈下可以做到100kbps的速率。

Result

Using the parameters described above, we are able to achieve a throughput of around 38.6kB/s without data length extension

Using data length extension and the maximum controller data payload we see a throughput increase to 100kB/s.

Throughput calculations can be done by hand following this equation

THROUGHPUT_KBPS = (NUM_PACKETS_PER_CXN_EVT) * (NUM_BYTES_PER_PACKET - TOTAL_PACKET_OVERHEAD)/ (CONNECTION_INTERVAL) 

With standard controller features the throughput example will use the following vars

NUM_BYTES_PER_PACKET = 27 bytes TOTAL_PACKET_OVERHEAD = 7 bytes CONNECTION_INTERVAL = 200ms 

With DLE enabled the throughput example will use the following vars

NUM_BYTES_PER_PACKET = 251 bytes TOTAL_PACKET_OVERHEAD = 7 bytes CONNECTION_INTERVAL = 200ms 

As an example, from the above sniffer capture 85 packets of 244 data payload bytes are sent in one connection event (200 ms). This comes out to 103.7kB/s which is similar to what Ellisys is calculating.

测试代码如下所示：

https://github.com/ti-simplelink/ble_examples/blob/master/docs/throughput_example.md