In the first half of this year, Mir Electronics released new products based on core Chi D9 series core board and development board. Since the launch of this domestic high-end car gauge level, high security core board development board, many embedded hardware and software engineers, users to consult, this core board to support 100% domestic materials, its use of D9-Lite, D9, D9-Plus, D9-Pro processor in the end what is the difference? Different suffix models of processors, application scenarios are different, today Xiaobian to explain in detail the difference between the core D9 series of domestic processors.

Picture: Milkie D9 series core board and development board

First of all, the full series of Chipchi D9 processors have very good compatibility, the whole package uses FCBGA 625 feet, and pin2pin compatibility, the same process has the same reliability, rich application scenarios, different processors let customers choose more flexible.

First, the processor performance is different

Core D9 series processors provide a flexible combination of single core, four core, five core, six core processor + real-time processor, customers can choose the right computing power model according to their application needs. The D9 processor uses a 4-core Cortex-A55+ 2-core Cortex-R5 processor, and the CPU performance reaches 22.6+3.2KDMIPS. The D9-Plus processor uses 4-core Cortex-A55+ single-core Cortex-A55+ 3-core Cortex-R5, and its CPU performance reaches 27.9+4.8KDMIPS. The D9-Pro processor uses a 6-core Cortex-A55+ single-core Cortex-R5, and its CPU performance reaches 45.2+1.6 KDMIPS. In other words, the CPU performance of D9 family products from D9-Lite, D9, D9-Plus, D9-Pro from low to high. D9-Lite is recommended for users running linux, simple interface, and lightweight computing. Customers who run Android system, multimedia applications and rich interface choose D9-Pro; The demand for real-time control and real-time communication is strong, the demand for data isolation and data security is high, and the demand for running multiple operating systems is met with D9-Plus; D9 has the widest range of applications.

Figure: Xinchi D9 series processor KDMIPS calculation diagram

Second, 3D GPU performance is different

GPU performance is mainly reflected in games, multimedia processing, scientific computing and other fields. In games, GPU can speed up tasks such as graphics rendering and physics simulation, improve the picture quality and running speed of the game; In multimedia processing, GPU can accelerate tasks such as video decoding and image processing, and improve the efficiency and quality of multimedia applications. In scientific computing, Gpus can accelerate tasks such as large-scale data processing and machine learning, improving computational efficiency and accuracy. With 32GFLOPS of performance, the D9 and D9-Plus meet mainstream demands; Its D9-Pro chip with 100GFLOPS is more suitable for high-performance entertainment applications; In addition, in order to reduce power consumption and cost, the D9-Lite chip cuts out the GPU, and is generally not used for 3D presentation needs.

Figure: Xinchi D9 series processor data

Third, NPU calculation power is different

NPU neural network processing unit can provide efficient and low-power deep learning algorithm acceleration ability, its main function is to accelerate the training and reasoning of neural network model. It can provide high-speed, efficient computing power and support a variety of deep learning frameworks such as TensorFlow, Caffe, MXNet, and others. NPU can complete a large number of matrix operations and vector calculations in a relatively short time, thus speeding up the training and reasoning process of the model.

Among them, D9-Pro and D9-Plus processors have 0.8Tops computing power, which is suitable for artificial intelligence and edge computing AI fields.

Fourth, HD playback hard decoding performance is different

VPU can provide efficient and low-power video codec processing capabilities, including video coding, decoding, image processing, video output and so on. It can support a variety of video encoding formats, such as H.264, H.265, VP9, etc., and can also support a variety of resolution and frame rate video processing. The D9-Pro supports 4Kp30 video playback, and the D9-Plus and D9 support 1080p60 video playback.

Figure: Xinchi D9 series processor data

5. Different support for multiple operating systems

The chipset D9 series supports AMP asymmetric multiprocessing: multiple cores are isolated from each other and can run different operating systems.

Core D9 series processors support three operating systems:

The D9-Lite has a single-core Cortex-A55 processor that can run the Linux operating system and a 2 x Cortex-R5 real-time processor that can run the RTOS operating system.

The D9 has a 4 x Cortex-A55 processor that can run the Android /Linux operating system, and a 2 x Cortex-R5 real-time processor that can run the RTOS operating system.

The D9-Plus has a 4 x Cortex-A55 processor that can run Android /Linux, and another single-core Cortex-A55 processor that can run Linux/RTLinux; In addition, there are three independent Cortex-R5 real-time processors that can run the RTOS operating system and operate the security encryption module, real-time tasks, real-time communications, and more.

The D9-Pro has a 6 x Cortex-A55 processor and can run Android /Linux operating systems; There is also a single-core Cortex-R5 real-time processor that can run the RTOS operating system and operate secure encryption modules or fast corresponding peripherals.

Figure: Xinchi D9 series processor data

6. Different application scopes

On the whole, Mir is based on the core board and development board of Xinchi D9 series, which has a wide range of applications and adopts goldfinger design with high reliability. Based on the core board of Core Chi D9, the comprehensive cost-effective, especially suitable for network security equipment, trusted computing equipment, trusted display (large screen) equipment, public service equipment, critical information infrastructure and other applications. Based on the core board and development board of Xinchi D9-Pro, it has strong video decoding and multimedia capabilities, and is suitable for high-performance display and control all-in-one machines, industrial robots, construction machinery T-BOX, smart cockpit, in-vehicle entertainment, intelligent medical equipment and other applications. Based on the core D9-Plus AMP asymmetric multi-core structure, can run multiple operating systems, suitable for network security equipment, trusted computing equipment, trusted display (large screen) equipment, public service equipment, critical information infrastructure and other applications.