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)

S32V234_data_sheet_Rev3.1.pdf

SBC-S32V_User_Manual.pdf

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。