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关于CC2640的实际速率,向TI各位大神再次请教

Other Parts Discussed in Thread: CC2541, CC2640

通过之前的咨询与相关测试数据,了解了CC2541/0的最大实际传输速率大概可以达到5.9K/S,参考如下:

http://processors.wiki.ti.com/index.php/CC2540_Data_Throughput

然后是CC2640的相关测试如下:

http://processors.wiki.ti.com/index.php/CC2640_BLE_Throughput

说实话,之前没做过蓝牙方面开发,能力有限,2640这个测试结果没太看明白,TI的大神们,能否给一个直白的答复,CC2640的最大传输速度能达到多少K/S?

到底比2541提升了多少?

望回复

  • 这个不好一概而论的。那个wiki上的测试方法是两个2640之间,有测试条件的。可以说是比较快的速率

    The throughput being measured is actual usable payload GATT throughput. Any LL / L2CAP headers are not considered part of the throughput. 
    The GATT architecture used is such that the GATT server is sending GATT notifications to the GATT client. 

    如果你跟IOS或者安卓手机连的话,这些系统边是有速率限制的。还要看是不是支持MTU等等

  • HG 说:

    这个不好一概而论的。那个wiki上的测试方法是两个2640之间,有测试条件的。可以说是比较快的速率

    The throughput being measured is actual usable payload GATT throughput. Any LL / L2CAP headers are not considered part of the throughput. 
    The GATT architecture used is such that the GATT server is sending GATT notifications to the GATT client. 

    如果你跟IOS或者安卓手机连的话,这些系统边是有速率限制的。还要看是不是支持MTU等等

    那请问咱们现在有没有关于2640 ,与苹果手机之间传输速度、或者与某几款安卓手机的传输速度的测试呢?我们的产品暂定选型为2640,目前也已经开始测试,但是由于没有经验,怕由于使用方法的问题,影响速率,所以还是想了解下官方的数据。如果有,麻烦提供一下。如果没有,那还麻烦请您根据您自己的经验,或者别人做过的项目,大致给一个2640与安卓手机之间传输速度的大致范围  多少K/S -- 多少K/S之间,大概的就好。

  • 你好,

    如果跟苹果手机连接,其限制条件很多,我列出其中几条:

    Uses Private resolvable address instead of fixed IEEE address
    Cannot use whitelist towards iOS devices
    Cannot use directed advertisements towards iOS devices
    Connection parameter limitations
    Connection parameters must be updated by slave device(!)
    Interval must be higher than 20ms; combined with latency, less than 2s
    Supervisor timeout <= 6s
    Slave latency <= 4
    BLE data hidden from the user:
    IEEE address of peripheral
    Characteristic handles
    Descriptors
    Connection parameters

    跟多限制你可以参考

    给你大概的和手机通讯范围就是8Kbps以内