1 MT2625 SDK 概览
MediaTek LinkIt 开发平台提供基于MT2625 SOC设备的全方位软件解决方案。
平台支持硬件抽象层，物理驱动，实时操作系统FreeRTOS，nbiot演示模块。API参考描述了其特性及如何在其支持的模块上使用APIs.
每一个模块有一个说明文档readme.txt, 位于模块根目录下，其包含了有关模块依赖，特性选项，备注和简介等信息。请参考说明文档readme.txt学习模块的基本用法。
分类： NB-IoT
MT2625 NBIOT SDK 1.2 目录结构及编译
SDK版本：NBIOT_SDK_V1.2.0
withzheng | 使用TensorFlow进行训练识别视频图像中物体
本教程针对Windows10实现谷歌公布的TensorFlow Object Detection API视频物体识别系统，其他平台也可借鉴。
本教程将网络上相关资料筛选整合（文末附上参考资料链接），旨在为快速搭建环境以及实现视频物体识别功能提供参考，关于此API的更多相关信息请自行搜索。
注意： windows用户名不能出现中文！！！
MT2625 NBIOT SDK 1.2 release
NBIOT_SDK_V1.2.0.7z
| ReleaseNote_NBIOT_SDK_V1.2.0 |
| Main changes |
| - Features and optimization |
| o [MT2625] Added new AT command AT+CRLA--Restricted UICC logical channel access. |
| o [MT2625] Provided the NV item to customer to change the OOSA search timer. |
| o [MT2625] Optimized the cell search flow that speed up and try to find the strongest cell for the frequency list search. |
| o [MT2625] Upgrading the implementation of 3GPP CR R5-181304, so if TC 22.4.23 is tested on Starpoint V1.6.0.1 or later, this upgrading should be supported. |
| o [MT2625] Add NVDM backup area base address and length on download configuration file for FlashTool to retain backup area data prevent from being formatted. This feature only can work with FlashTool V2.2.7 or above version. |
| o [MT2625] Support customized ATCI default port and default baud rate. |
| o [MT2625] Enhancement LWM2M CT AT command. |
| o [MT2625]:Output partial AP log (GLOGE、GLOGW、RTC_LOG_ERROR、snprintf) to PC tool with the new created "SIG_SYSLOG_TEST_FILE_OUT" GKI signal, so that the PC Tool can filter such log from GUI. |
| - Bug fixes |
| o [MT2625] Fixed the issue that AT channel is blocked with PIN enabled SIM card. |
| o [MT2625] Fixed the issue that TC22.3.1.2 failed on Starpoint V1.6.0.1. |
| o [MT2625] Fixed the issue that sometimes subscribed topic can't be received randomly. |
| o [MT2625] Fixed the issue that there is 5s delay to send the data to CT IOT platform. |
| o [MT2625] Fixed the issue that crash happened when a large MQTT package published. |
| o [MT2625] Fixed the issue that sometimes 2 packages are sent to CT IOT platform in one send. |
| o [MT2625] Fixed the issue that WDT timeout seldom happened if HTTP failed to send request or connect to server. |
| o [MT2625] Add sleep lock of HAL ADC and HAL TRNG during HW working. |
| o [MT2625] Fixed the issue that not auto do default PDN link Creation when the SDK version from V1.0.x to V1.1.1 and later. |
| o [MT2625] Fixed the issue that DUT still enter into light sleep mode while GNSS power on. |
| o [MT2625]: Fixed the issue that TC22.4.11 failed on Starpoint V1.6.0.1. |
| o [MT2625]:Fixed the issue that the Meta tool is not able to read right calibration data after formatted all. |
| o [MT2625]:Fixed the issue that UE crashed when setting earfcnoffset to other value than -0.5 in MixRx in META. |
| o [MT2625]:Fixed the issue that when the first NVDM access is the top NVDM item in NVDM verno table, its verno is wrong. It will lead to this top NVDM item is wrong in this case. |
| o [MT2625]:Fixed the issue that UE crashed when temperature is lower than -42 degree centigrade. |
| o [MT2625]:Fixed the issue that UE crashed caused by unsuitable measurement scheduling. |
| o [MT2625]:Fixed the issue that the Meta Tool does not response properly when UE fails synchronize to instrument during NSFT test. |
MT2625 SW Architecture
MT2625 SW Architecture
联发科在参考设计中集成了NB-IoT（MT2625）、蓝牙（AB1602）、WiFi（MT5932）和GPS（MT3333）。也就是说，这款通用模组面向的客户不局限于抄表、智能路灯、共享单车等大家所熟知的业务，消费者家中各种的家电连接、售后服务，高校洗衣房里智能洗衣机的远程排位等等场景均可通过上述模组实现。
单纯从集成多种连接能力看，这将进一步扩充NB-IoT商用场景，对NB-IoT网络未覆盖的区域也是一种连接能力的补充，有点类似LTE TDD/FDD融合发展的意味，通过同时支持多模壮大TD-LTE国际市场的发展空间，进而引领5G发展。