CC2640 sppledemo 连接Android设备连接时间间隔

想要修改连接时间间隔，代码协议栈和例子用的是：

C:\TI\Connectivity\CC256X BT\CC256x STM32 Bluetopia SDK\v4.2.1.0\NoOS\STM3240G-EVAL\Samples\SPPLEDemo

修改时间间隔的地方只在sppledemo.c的建立连接ConnectLEDevice（)函数中找到参数初始化设置

static int ConnectLEDevice(unsigned int BluetoothStackID, BD_ADDR_t BD_ADDR, GAP_LE_Address_Type_t RemoteAddressType ,GAP_LE_Address_Type_t OwnAddressType, Boole

ConnectionParameters.Connection_Interval_Min = 20; //modify by yhc 2017.06.01
ConnectionParameters.Connection_Interval_Max = 200;
ConnectionParameters.Minimum_Connection_Length = 0;
ConnectionParameters.Maximum_Connection_Length = 10000;
ConnectionParameters.Slave_Latency = 0;
ConnectionParameters.Supervision_Timeout = 20000;

我想问的是CC2540中有 GAPRole_SendUpdateParam（）函数发送参数请求的函数，CC2564有没有类似的函数，谢谢！

有，参考GenericAccessProfileServiceAPI.PDF，路径：C:\ti\Connectivity\CC256X BT\CC256x STM32 Bluetopia SDK\v4.0.2.2\NoOS\Documentation\API Documentation

非常感谢你的回复，

1，我在SPPLEdemo端申请了参数更新，

SPPLEdemo端回掉函数：

etLE_Connection_Parameter_Updated with size 14.

Status: 0x00.

BD_ADDR: 0x64638E6D3465.

Connection Interval: 8.

Slave Latency: 0.

Supervision Timeout: 100.

Android端收到了申请如下：

 D/BluetoothGattServer: onConnParamsChanged() - Device=88:C2:55:D1:D6:B6 interval=6 status=0

从打印信息上看已经修改了连接间隔。

2，SPPLE端定时器12ms发送数据，但是在Android端收到的数据，两次间隔为200ms，我不知道这么大的延时处在哪？

测试用的是三星S7

06-06 14:05:17.752 15744-15760/com.pico.advertis E/GattServer: data = 303132333435363738393031323334353637
06-06 14:05:17.952 15744-15760/com.pico.advertis E/GattServer: data = 383930313233343536373839303132333435
06-06 14:05:18.152 15744-15760/com.pico.advertis E/GattServer: data = 363738393031323334353637383930313233
06-06 14:05:18.362 15744-15762/com.pico.advertis E/GattServer: data = 343536373839303132333435363738393031
06-06 14:05:18.552 15744-15760/com.pico.advertis E/GattServer: data = 323334353637383930313233343536373839