CH58x/CH59x动态修改广播包

前言：在日常使用中我们可能有需要动态修改广播包的情况。从机设备不走连接将一些传感器数据通过广播包显示出来

程序中提供了接口函数进行动态修改不用再先关闭广播再重新开启。

/******************************************************************************** @fn          GAP_UpdateAdvertisingData** @brief       Setup or change advertising and scan response data.**       NOTE:  if the return status from this function is SUCCESS,*              the task isn't complete until the GAP_ADV_DATA_UPDATE_DONE_EVENT*              is sent to the calling application task.** input parameters** @param       taskID - task ID of the app requesting the change* @param       adType - TRUE - advertisement data, FALSE  - scan response data* @param       dataLen - Octet length of advertData* @param       pAdvertData - advertising or scan response data** output parameters** @param       None.** @return      SUCCESS: data accepted,<BR>*              bleIncorrectMode: invalid profile role,<BR>*/
extern bStatus_t GAP_UpdateAdvertisingData( u8 taskID,u8 adType,u8 dataLen,u8 *pAdvertData );

GAP_UpdateAdvertisingData( 0,TRUE ,sizeof( advertData ),advertData );         //  广播包

GAP_UpdateAdvertisingData( 0,FALSE ,sizeof( scanRspData ),scanRspData );  //   扫描应答包

使用示例：

static uint8_t advertData[] = {// Flags; this sets the device to use limited discoverable// mode (advertises for 30 seconds at a time) instead of general// discoverable mode (advertises indefinitely)0x02, // length of this data
    GAP_ADTYPE_FLAGS,DEFAULT_DISCOVERABLE_MODE | GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED,// service UUID, to notify central devices what services are included// in this peripheral0x03,                  // length of this dataGAP_ADTYPE_16BIT_MORE, // some of the UUID's, but not all
    LO_UINT16(SIMPLEPROFILE_SERV_UUID),HI_UINT16(SIMPLEPROFILE_SERV_UUID),0x05,0xff,0x01,0x02,0x03,0x04};

上述为广播包内容，下面给出实际更新示例

 if(events & Change_advdata_evt){advertData[12] = 0xaa;GAP_UpdateAdvertisingData( 0,TRUE ,sizeof( advertData ),advertData );tmos_start_task(Peripheral_TaskID, Change_advdata_evt, 16000);return (events ^ Change_advdata_evt);}

实际效果：

修改前：  修改后：