基于NXP S32V234的第二代视频处理器开发方案
nxp公司的S32V234是第二代视频处理器系列,基于64位ARM Cortex-A53CPU,具有高达1000MHz 四核ARM Cortex-A53,集成了32 KB/32 KB I-/D- L1高速缓存,NEON MPE协处理器,双精度FPU,带2 CPU和256KB L2缓存的2集群,存储器管理单元,GIC中断控制器,提供ISP,功能强大的3D GPU,两个APEX-2可视加速器,支持SafeAssure™安全性,具有汽车级的可靠性,功能安全性,支持汽车和工业自动化,适用于汽车ADAS,NCAP前置摄像头,物体检测和识别,车载全景可视系统以及机器学习和传感器融合应用.本文介绍了S32V234主要特性,框图,评估板SBC-S32V234主要特性和电路图.
The S32V234 is our 2nd generation vision processor family designed to support computation intensive applications for image processing and offers an ISP, powerful 3D GPU, dual APEX-2 vision accelerators, security and supports SafeAssure™.S32V234 is suited for ADAS, NCAP front camera, object detection and recognition, surround view, machine learning and sensor fusion applications. S32V234 is engineered for automotive-grade reliability, functional safety and security measures to support vehicle and industrial automation.
S32V234 has a complete enablement platform supported by S32 Design Studio IDE for Vision which includes a compiler, debugger, Vision SDK, Linux BSP and graph tools.
S32V234主要特性:
• ARM Cortex-A53, 64-bit CPU
– Up to 1000 MHz Quad ARM Cortex-A53
– 32 KB/32 KB I-/D- L1 Cache
– NEON MPE co-processor
– Dual precision FPU
– 2 clusters with 2 CPUs and 256 KB L2 cache each
– Memory Management Unit
– GIC Interrupt Controller
– ECC/parity error support for its memories
– Generic timers
– Fault encapsulation by hardware for redundantexecuted application software on multiple corecluster
• ARM Cortex-M4, 32-bit CPU
– Up to 133 MHz
– 16 KB/16 KB I-/D- L1 Cache
– 32+32 KB tightly coupled memory (TCM)
– ECC/parity support for its memories
• Clocks
– Phase Locked Loops (PLLs)
– 1 external crystal oscillator (FXOSC)
– 1 FIRC oscillator
• System protection and power management features
– Flexible run modes to consume low power based onapplication needs
– Peripheral clock enable register can disable clocks tounused modules, thereby reducing currents
– Power gating of unused A53 cores and GPU
– Low and high voltage warning and detect
– Hardware CRC module to support fast cyclicredundancy checks (CRC)
– 120-bit unique chip identifier
– Hardware watchdog
– eDMA controller with 32 channels (withDMAMUX)
– Extended Resource Domain Controller
• Safety concept
– ISO 26262, ASIL level target
– Measures to detect faults in memory and logic
– Measures to detect single point and latent faults
– Quantitative out of context analysis of functionalsafety (FMEDA) tailored to application specifics
– Safety manual and FMEDA report available
• Security
– CSE with 16 KB of on-chip Secure RAM and ROM.
– ARM TrustZone (TZ) architecture support
– Boot from NOR flash with AES-128 (CTR)
– On-Chip One-Time Programmable elementController (OCOTP_CTRL) with on chip electricalfuse array.
– System JTAG Controller (SJC)
• Debug functionality
– Standard JTAG and Compact JTAG
– 16-bit Trace port, Serial Wire Output port
• Timers
– General purpose timers (FTM)
– Two Periodic Interrupt Timer (PIT)
– IEEE 1588 Timers (part of Ethernet Subsystem)
• Analog
– 1x 12-bit 1.8 V SAR ADC with self-test
• Communications
– UART(w/ LIN2.1l)
– Serial peripheral interface (SPI)
– I2C blocks
– PCI express 2.0 with endpoint and root complexsupport
– LFAST serial link
– 1 GBit Ethernet with PTP IEEE 1588
– FD-CAN
– FlexRay Dual Channel, Version 2.1 RevA
• Memory interfaces
– 32-bit DRAM Controller with support for LPDDR2/DDR3/DDR3L - Up to 1066 MHz data rate with ECC (SEC-DEDTED)triple errror detection support for subregion
– QuadSPI supporting Execute-In-Place (XIP)
– Boot flash fault detection and correction using two-dimensional parity.
– Triple fault detection and single fault correction scheme for external DDR-RAM including address/page fault detection.
• Video input interfaces, Image processing, graphics processing, display
– Display Control Unit (2D-ACE) with 24-bit RGB, GPU frame buffer decoding
– GPU GC3000 with frame buffer compression
– 2x VIU (Video interface unit) for camera input
– 2x MIPICSI2 with four lanes for camera input (support 1080 pixel @ 30 fps)
– Image signal processor (ISP), supporting 2x1 or 1x2 megapixel @ 30 fps and 4x2 megapixel for subset of functions(exposure control, gamma correction)
– 2x APEX2-CL Image cognition processor supporting OpenCL 1.2. APEX-642CL comprises two Array Processing Unit
(APU) cores configurable as single SIMD engine with 64 16-bit Computational Units (CU), or configurable as two coreMIMD engines with 32 16-bit CUs each.
– CUs are comprised of four Functional Units: 16-bit Multiplier, Load Store Unit, ALU, and Shifter
– JPEG video decoder (8/12-bit)
– H.264 video decoder (8/10/12-bit), High-intra and constrained baseline formats
– H.264 video encode (8/10/12-bit), High-intra only
– Fast DMA for data transfers between DRAM and System RAM with CRC
• Human-Machine Interface (HMI)
– GPIO pins with interrupt support, DMA request capability, digital glitch filter
– Configurable slew rate and drive strength on all output pins
• System RAM
– 4 MB On-Chip System RAM with ECC
S32V234目标应用:
Automotive
Front View Camera
Smart Rear View Camera
Surround View & Sense Park Assist System
Surround View Park Assist System
图1.S32V234框图
评估板SBC-S32V234
SBC-S32V234: S32V234 Vision and Sensor Fusion Evaluation Board for Prototyping and Development
图2.评估板SBC-S32V234 CRX-S32V载体板框图
图3.评估板SBC-S32V234 MPX-S32V模块框图
图4.评估板SBC-S32V234外形图
图5.评估板SBC-S32V234模块边连接器(载体板CRX-S32V)外形图
图6.评估板SBC-S32V234非模块边连接器(载体板CRX-S32V)外形图
图7.评估板SBC-S32V234模块(MPX-S32V)外形图(正面)
图8.评估板SBC-S32V234模块(MPX-S32V)外形图(背面)
评估板SBC-S32V234主要特性:
图9.评估板SBC-S32V234电路图(1)
图10.评估板SBC-S32V234电路图(2)
图11.评估板SBC-S32V234电路图(3)
图12.评估板SBC-S32V234电路图(4)
图13.评估板SBC-S32V234电路图(5)
图14.评估板SBC-S32V234电路图(6)
图15.评估板SBC-S32V234电路图(7)
图16.评估板SBC-S32V234电路图(8)
图17.评估板SBC-S32V234电路图(9)
图18.评估板SBC-S32V234电路图(10)
图19.评估板SBC-S32V234电路图(11)
图20.评估板SBC-S32V234电路图(12)
图21.评估板SBC-S32V234电路图(13)
视频处理器
视频处理器是LED全彩显示屏诞生、成长以及成熟的全程见证者和标志性设备,LED专用的视频处理设备在此过程中也逐渐走向成熟,LED视频处理器的优劣直接影响了LED显示屏的显示效果。
特色功能
一、 图像截取:截取完整图像上的任意一小块区域,并将之放大显示于整个LED显示屏上。
二、 图像放大:将图像放大,最高放大倍数为10倍。
三、 图文叠加,抠图合成:用于在画面上叠加另一路信号,以完成字幕叠加,抠图合成等功能。
四、 淡入淡出:在两个信号源之间做淡入淡出式的切换,过程时间从0秒到5秒可设。
五、 无缝切换:切换信号源时,新旧画面的更替过程中不会黑屏、花屏。
六、 多机连接:
a) 多机连接状态下,可实现多个(大于两个)信号源之间做淡入淡出式的切换。
b) 多机连接状态下,通过多机模板功能,实现在多种应用场景之间快速切换,详见“模板功能”。
七、 同步随动: 同步随动技术确保了多机拼接大屏幕LED显示时,多屏画面完整、同步。
图像处理
一、 四种图像模式,快速切换用户设置。
二、 亮键,快速提升或者降低整屏亮度等级,从全暗到全亮仅需不到2秒时间。
三、 3D降噪、VGA防抖等技术,显著提高图像质量。
四、 ACC2、ACM3D的应用,显著增强图像细节还原能力以及色彩表现张力。
五、 黑延伸、场景模式等,提升图像细节再现能力。
六、 四组色温设置,包含一组自定义设置,总有一组适合你。
七、 DVI增强技术,提升DVI信号下图像的视觉效果。
八、 支持七组Gamma设置。
模板功能
一、 高达10个模板,可快速恢复应用场景。
二、 在多机连接模式下,也可通过仅仅一次按键,就将所有机器都恢复到某个场景模板之下。
例如一块LED显示屏,某个时段下,需要显示一整个图像,而另一个时段下,需要分开同时显示多个图像,且两种场景之间需要快速的切换。这种情况下,场景模板的作用就突显了出来。
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