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CC2640 开启 notification 错误



如题,

case GATT_CLIENT_CHAR_CFG_UUID:

status = GATTServApp_ProcessCCCWriteReq( connHandle, pAttr, pValue, len,offset, GATT_CLIENT_CFG_NOTIFY );

break;

开启notification时,采用上面的代码,但是status返回ATT_ERR_INSUFFICIENT_RESOURCES,

(#define ATT_ERR_INSUFFICIENT_RESOURCES   0x11 //!< Insufficient Resources to complete the request)

请问,这是怎么回事啊?