In the previous issue of VR mainstream chip makers, Xiaobian introduced several world-renowned chip supply and technical support providers, and used VR chips on VR headset display: Qualcomm Xiaolong 820, MediaTek X30, as well as Samsung Exynos8890 and more. Today, Xiaobian also brings several VR chips, which are well known to everyone. Pictured above is Samsung Gear VR glasses The ARM Cortex-M4-based STM32F4 family of MCUs uses ST's NVM process and ART accelerators to achieve 225 DMIPS/608 CoreMark performance through flash memory at operating frequencies up to 180 MHz, which is by far all Cortex-based The highest benchmark score achieved by the M-core microcontroller product. Due to the dynamic power scaling feature, the current consumption through flash memory ranges from 89 μA/MHz for the STM32F410 to 260 μA/MHz for the STM32F439. The STM32F4 family includes eight mutually compatible Digital Signal Controller (DSC) product lines that are the perfect combination of MCU real-time control and DSP signal processing. ARM Cortex-M4 Series Product Line Advanced Series: 180 MHz CPU / 225 DMIPS, up to 2MB of dual-zone flash with SDRAM controller and Chrom-ART accelerator STM32F469/479 – Quad-SPI interface, LCD-TFT controller and MPI-DSI interface STM32F429/439 – LCD-TFT Controller STM32F427/437 – Serial Audio Interface for Higher Performance and Lower Static Power Basic series: STM32F446 – 180 MHz/225 DMIPS, up to 512 KB Flash with Dual Quad SPI and SDRAM interfaces STM32F407/417 – 168 MHz CPU/210 DMIPS, up to 1 MB of flash memory, adds Ethernet MAC and camera interface STM32F405/415 – 168 MHz CPU/210 DMIPS with up to 1MB of flash memory, advanced interconnect and encryption Starter Series: STM32F4 series based on the lowest cost considerations! 84 MHz CPU/105 DMIPS, the smallest, lowest cost solution with outstanding dynamic power efficiency STM32F401 – less than 3 x 3mm in size with USB OTG2.0FS and SDIO interface 100 MHz CPU/125 DMIPS with excellent dynamic power efficiency and batch acquisition mode (BAM, a new data-oriented batch mode that utilizes DMA intelligence to optimize power consumption). STM32F410 – A new milestone in energy efficiency (89 μA/MHz in Run mode and 6 μA in Stop mode) with hardware random number generator, low power timer and DAC. STM32F411 – High RAM capacity and enhanced peripheral set, such as USB OTG2.0FS and up to 5 SPI. STM32F412 – High RAM and flash capacity, USB interface, enhanced peripheral set including flexible external static memory controller (up to 16-bit data bus for LCD and external memory control), dual QUAD SPI, CAN, DFSDM and TRNG. STM32F413/423 - Further enhances the STM32F412's Flash and RAM capacity with a powerful peripheral set including 10x UART, 3x CAN, SAI interface, 1x low power timer, 2x DAC, 2x DFSDM (up to 6 Filter), STM32F423 series contains AES encryption. It is reported that Samsung Gear VR dismantling can be used to understand the main control chip, which is the STM32F401 A5009V0 TW 435 of STMicroelectronics M4 series, which is STM32 32-bit ARM Cortex-M4 micro control unit of STM32F4 series. . Samsung Gear VR master chip uses STMicroelectronics microcontroller M4 series STM32F401 RK3288 open source development board PopMetal At the 2014 Hong Kong Electronics Fair, Ruixin Micro and ARM released its latest chip RK3288 solution, setting a number of first records in the history of Rockchip microchips. The comprehensive performance and scores are more substantial than the previous generation. The leap of sex is used in the notebook market, smart box and other markets. The Rockchip RK3288 set a good result of running the first, outputting the first quality, and the first game experience. The Rockchip RK3288 uses the ARM Cortex-A17 processor and is equipped with the Mali-T76X series of GPUs. According to official data, the RK3288 is 50% better than the previous generation A9, and has improved performance by nearly 5 compared to the previous generation Mali-400. Times, lower power consumption. Comparison of Ruixin micro RK3288 chip & & RK3188 chip parameters Rockchip RK3288 supports hard-solved H.265 encoding and 4K video. In the future, users can easily watch 4K movies through this chip solution. The transmission is difficult and the difficult problem of decoding is solved. And support HDMI2.0 interface, can be used with 4K TV, free to watch 4K Ultra HD content. Technically, as a new generation of ARM GPU products, in addition to 16 coloring engines, the Mali T764 GPU introduces multiple memory compression technologies, such as ASTC texture compression technology and ARM frame buffer compression format (ARM Frame Buffer). Compression), TransacTIon EliminaTIon smart elimination technology. The use of the three technologies has improved the performance of the RK3288 image. In addition, the RK3288 chip equipped with the T764 GPU, for the first time using a new image engine technology, such as Enlighten global real-time optical technology introduced in Unity, usually used in console games, such as PS3, PS4, Xbox games. The RK3288 is the world's first CPU with a new image engine technology. RTK3288 compared with several other chip solutions Based on TSMC's latest 28-nanometer manufacturing process, the all-in-one H8 eight-core is powered by eight ARM Cortex-A7 cores and supports 8-core simultaneous 2.0GHz high-speed operation. It also features ImaginaTIon's powerful PowerVR SGX544 image processing architecture with a working frequency of 700M. about. In terms of multimedia, H8 supports multi-format 1080p@60fps video codec, supports H.265/HEVC video processing, and integrates 8M ISP image signal processing architecture to support 8 megapixel camera. In terms of display, H8 supports HDMI 1080p@60fps display, supports HDCP V1.2 protocol, and supports HDMI CEC. In addition, the H8 integrates the new generation of Lixin display technology, and the image display quality is further improved. In fact, the H8 chip was first used in TV boxes. All-Chi VR integrated machine program - H8vr The advantage of the H8vr video all-in-one solution from Quanzhi Technology is that it can be mass-produced and optimized for latency, power consumption and multimedia. It is reported that this program has an open hardware system platform, open H8vr system SDK, and its finished product price is around 1,000 yuan, which can achieve mass production. Specifically, the solution is based on the all-in-one VR dedicated chip, optimized for the underlying algorithm, ATW (asynchronous time warp), FBR (pre-buffered rendering), etc., and uses the Nibiru VR all-in-one system for deep optimization of the Android system. . Quanzhi H8vr technical specifications: CPU: Octa-Core ARM CortexTM-A7 GPU: PowerVR SGX544 Memory: 32-bit DDR3/DDR3L/LPDDR3/LPDDR2 Flash: Supports 8-bit SLC/MLC/EF NAND with 64-bit ECC Video processing capability: Supports H.264 4K@30fps panoramic video playback H.265/VP9 1080p@30fps video playback OS: Android 4.4 and above Package: FCBGA 345 Process technology: TMSC's 28nm HPC Full Zhi H8 detailed parameters Quanzhi A80 Octa technical specifications: CPU architecture: ARM Cortex-A15 R4P0 (A15R4P0 is the latest improved version of A15 2014, performance improvement, power consumption reduction, solve previous firmware bugs) & ARM Cortex-A7 with big.LITTLE (HMP architecture can make 8 CPU cores Run at the same time) (Note: When the CPU frequency is the same, the manufacturing process is the same, and the optimization is the same, the performance A15>A17>A12>A9>A7>A5) CPU frequency: 2016MHz CPU core: eight cores GPU chip: ImaginaTIon PowerVR G6230 Manufacturing process: 28 nm Support memory: DDR3 / LPDDR3 (2GB or above) Package: 1.8cm × 1.8cm (about) Wireless network: 2.4GHz / 5GHz Wi-Fi Bluetooth: Support, Bluetooth 4.0 Camera: up to 16 million pixels Maximum support resolution: 4K (3 display) Video output: HDMI 1.4 Video format: support formats such as H.265 Audio decoding chip: AC100 Power Management: CoolFlex Interface: Ethernet, serial port, Camera, USB3.0 OTG, 2×USB2.0, HDMI, GPIO, etc. The latest systems that can be supported: Android 4.4.2, Windows RT 8.1, Chrome OS, etc All-Chi A80 detailed parameter description Quanzhi H8vr video all-in-one solution As a highlight, the Quanzhi H8vr video all-in-one solution has the characteristics of “low heat, low power consumption, high integrationâ€, and the battery is smaller and lighter, which reduces the weight of the helmet and solves the helmet itself. cooling problem. In addition, the program also supports up to 4K@60fps panoramic video, in sensor, GPU, display to optical lens, through deep cooperation optimization, support for rich interaction, to ensure the performance of the VR machine and smooth UI experience.
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