kingk 发表于 2020-3-23 15:56 小虾给的建议解决了，找了软件的aes库。只是奇怪BLUENRG芯片没有aes的硬件加速么。

目前BlueNRG-1、2系列的AES加密是软件的，后续的产品会支持硬件加密。

   As moderator said, it is correct. But we have to add only one characteristic, notify or write… Please check the file attached, you can replace them in our demo Ble_chat.  Pay attention to the connection handle, it is just an example. Osal_MemCpy(&char_uuid.Char_UUID_128, charUuidTX, 16);   ret =  aci_gatt_add_char(chatServHandle, UUID_TYPE_128, &char_uuid, 20, CHAR_PROP_NOTIFY, ATTR_PERMISSION_NONE, 0,                 16, 1, &TXCharHandle);   if (ret != BLE_STATUS_SUCCESS) goto fail; /*   Osal_MemCpy(&char_uuid.Char_UUID_128, charUuidRX, 16);   ret =  aci_gatt_add_char(chatServHandle, UUID_TYPE_128, &char_uuid, 20, CHAR_PROP_WRITE|CHAR_PROP_WRITE_WITHOUT_RESP, ATTR_PERMISSION_NONE, GATT_NOTIFY_ATTRIBUTE_WRITE,                 16, 1, &RXCharHandle);   if (ret != BLE_STATUS_SUCCESS) goto fail; */