RichardB's notes from the seminar - Revision history

Dirk: Move article to category and minor reformatting

2009-01-23T18:48:10Z

Move article to category and minor reformatting

Richardb at 12:16, 23 January 2009

2009-01-23T12:16:47Z

Richardb at 12:12, 23 January 2009

2009-01-23T12:12:26Z

Richardb at 12:10, 23 January 2009

2009-01-23T12:10:58Z

Richardb at 12:01, 23 January 2009

2009-01-23T12:01:53Z

New page

==Texas Instruments & ARM: OMAP Seminar - 21 Jan. 09 – ARM, Cambridge, UK==

'''Cortex A8 Core– Bryan Lawrence – ARM'''
* Cortex A8 Core is the design. OMAP is the physical implementation of this design by TI
* Cortex A8 is based on V7-A instruction-set architecture and includes:
**NEON advanced SIMD (multimedia accelerator – integer and floating-point SIMD (single-instruction multiple-data)
** Jazelle-RCT (Java accelerator)
** TrustZone security foundation (effectively virtualisation of the core)
* Particularly aimed at applications (rather than real-time or ‘deeply’ embedded)
* A8 Processor Core (design) can run up t**1GHz +, c. 2000 DMIPS, depending on silicon
* MMU for OS virtual memory management
* Thumb-2 allows 16 & 32-bit instructions. Allows efficient, but small (compressed) code size if required
**Dependant on the compiler t**produce better ‘code density’
* Thumb-2, for e.g., gives a 29% reduction in Linux kernel size. E.g.: http://www.arm.com/products/os/linux.html
* CoreSight; non-invasive real-time trace for debugging
**JTAG port
**Debug access port (DAP)
**Embedded Trace Macrocell (ETM) – captures instruction and data

'''NEON SIMD – Ashley Stevens – ARM'''
* Flexible, generic multimedia acceleration
* High-power consumption than dedicated hardware but supports emerging standards
* Hybrid 64/128-bit SIMD architecture
* Supports up t**64-bit integers, single-precision floating-point
* Adds additional registers
* Variety of ways t**use: assembler , C Intrinsics, through t**OpenMAX DL library (recommended), Vectorizing compilers (generates NEON SIMD instructions)
* Provides, for e.g., faster FFT’s
* Armcc vs gcc : armcc produces more compact, faster code.
* Lots of NEON-optimised codecs available

'''OMAP35x Processor Overview – Chris Bowers – Snr Field Applications Engineer – TI'''
* TI have a range of microcontrollers through t**Application processors & DSP
* OMAP tends t**be seen in things like digital signage, POS terminals, portable infotainment etc (Lower power, high performance); “Laptop-like performance”
* Up t**1200 Dhrystone MIPS
* ARCHOS7 Internet Media Table built on OMAP3
* TI are “nicely surprised” by things like BeagleBoard
* Has a DSP (in addition t**NEON) for vide**processing, up t**HD
**DSP is generic; not limited t**video/audi**processing
* Peripheral connectivity (USB, MMC, Serial , USB etc.)
* OMAP35 models:
**3503 - ARM Cortex A8, Peripherals
**3515 - ARM Cortex A8, Peripherals, PowerVR SGX (OpenGL ES) graphics engine
**3525 - ARM Cortex A8, Peripherals, C64x DSP & vide**accelerator
**3530 - ARM Cortex A8, Peripherals, PowerVR SGX (OpenGL ES) graphics engine, DSP & vide**accelerator
* Camera interface
**Auto-focus engine
**CCD & CMOS imager interface
**Preview engine etc.
* Display subsystem
**(24-bit RGB up t**1024x768 HD, 2 x 10-bit DAC’s; roration, image resizing)
**Overlay, scaling, picture-in-picture
* Also discussed TI DaVinci platform: video-centric, based an ARM9, has some overlap with OMAP
* OMAP35x has power-management module. (PRCM), active and static (standby) modes of consumption
**Can reduce core voltage and frequency
**Various major components can be turned on/off as required – “power domains”
* Various complete boards available:
**OMAP35x evaluation module (EVM); OMAP 3530 plus touchscreen, RAM & NAND flash, Ethernet etc.
**BeagleBoard
**Gumstix Over**(tiny)
**LogicPD
**Analog & Micro

'''Understanding 2D/3D Graphics Dev using OMAP 35x - Jason Brand – Fields Apps Engineer – TI'''
* Lots of uses/major apps;
**Scalable UI’s , navigation, Games, Visualisations, Automotive
* OMAP 35x has NEON vector floating-point processor (VFP) +
* PowerVR SGX (graphics engine):
**Tile-based architecture
**Universal Scalable Shader Engine (USSE)
**Support for: OpenGL ES (Embedded Standard) 1.1 and 2.0, OpenVG 1.0 (t**accelerate Adobe Flash and SVG Tiny (Scalable Vector Graphics) and UI’s built on these)
**~10M polygons/second, ~0.9 GFLOPS
* OpenGL ES is a well-defined subset of desktop OpenGL
* (lots of details on SGX engine)
* OpenGL ES support seems powerful
* Graphics SDK is available from TI; tools, headers, libs, demos etc
* IVA 2.2 – Image, Video, Audi**subsystem- C64x DSP core:
**32-bit fiex-point media processor
**Vide**& image accelerator
**TI supply compiler tools to optimize for this hardware

'''ARM Software Development Tools – Elan Lennard – System Design Division – ARM'''
* “Enabling all developers t**get the best from their ARM-based system”
* Quality, high-performance s/w
* Tools: Compilation, Optimization, Middleware, Device Support, verification & debug, Fast simulation
* RealiVew Development Suite:
**Co-developed and validated with ARM processor IP; best code
**Extensive support for CoreSight (debug tech)
**Supports all ARM processors
**Std and Pro editions. ***Pro includes NEON compiler, RealView profiler, fast simulator (RTSM), ICE
**Automatic optimisation; data from profiler feeds back int**compiler == some perf improvement (c. 6%) and 40% (ish) code side reduction.
* Loop unrolling (where appropriate)
* Code reordering
**Link-time compilation; allows optimizations across source files, 5% size reduction, 5% perf improvement
**ARM compiler vs. GCC: ARM is 30% faster, 43% smaller. (similar when using Thumb code)
**NEON Vectorizing compiler; up t**400% (4x) performance improvement on a particular vide**decoder, compared t**regular ARM compiler
* ARM Workbench IDE – based on Eclipse 3.3
**ARM Eclipse plugins; ARM profiler, Flash programmer, ARM Linux project wizard etc. etc.
**Only really useful if RealView is used
* ARM Profiler:
**“Get the best out of ARM processors”
**Performance and code coverage analysis; detailed analysis of performance/usage, call-chain analysis
**Traces can be logged and replayed
**Completely non-intrusive; analyse running system/application
**Good e.g. show one instruction using 27% of application time
* RealView ICE and Trace,
**Hardware trace/debugger

'''Tool Chain Overview – Chris Bower – TI'''
* TI Code Composer Toolset
**DSPBIOS, low level ARM debug, DSP development and debug
* Montavista (for DaVinci)
**Linux-based, licensed through TI.
**Linux app development, Eclipse-based IDE
* Green Hills
**Integrity Linux based, MULTI debug environment for DSP and ARM. Application too
* Code Sourcery
**Linux (and Windows) – GNU Toolchain. For building Linux apps
**Eclipse-based for Pers and Pr**editions
* MPC
**WinCE
* Microsoft Platform Builder
**The choice for Windows CE etc. development
* Lauterbach TRACE32
**Low-level debug of ARM & DSP

'''OMAP3 OS Support – Jason Brand – TI'''
* Fundamentally this is Linux or Windows CE.
* TI issue a Linux 2.6.22 kernel, includes lots of device drivers, EVM drivers, on top of which:
**There is also DSPBIOS – scheduler, resource manager for DSP.
**Als**layers on top of these; codec interfaces, algorithm abstraction, Open VG, OpenGL ES, audio/vide**(GStreamer) etc.
* Windows CE 6.0 can als**function as the ‘underlying’ OS, some of the higher layers are different
* OMAP353 - SDK Beta SDK:
**Board boot, test, & flash utils
**Platform support:
* U-boot Linux boot-load and flashing
* Linux kernel with drivers
* Root fs
**Dem**apps
* Image viewer
* DaVinci I/F dump
**Code Sourcery tools
**X-Loader
* Small user boot-loader t**boot from on-board flash
* Must be signed before use
**U-Boot
* The next-stage boot-loader
* Flexible open-source utility for boot-loading Linux
* Capable of reading kernel image from flash, Ethernet TFTP, and ?
**ITBOK (is the board ok)
* Based on u-boot
* Basic H/W functionality tests
* OMAP35x WinCE Support:
**TI seeing 40% WinCE vs 60% Linux
**MS suggest that total cost of development is cheaper , and to-market faster than with Linux
**BSQUARE’s WinCE 6.0 R2 BSP (board support package) Dem**and Source is free with OMAP EVM
* Visual Tools plugin
* WinCE R2 Pr**compiled with Visual Tools
* Various codecs, DirectShow filters etc. for a/v
* Production Tested (tw**full QA passes)
* 100% CETK passed
**Adobe Flash Lite 3 port available for WinCE R2 BSP – OMAP35x EVM

'''Power for OMAP35x Processors – Miriam Corder – TI'''
* Max power consumption is 360mW
* With dynamic voltage/freq scaling – averaging <100mW
* External power-management chips available (“analog companion “)
**Includes audi**codec, RTC, USB OTG transceiver, battery charger etc.

@@ Line 1: / Line 1: @@
-==Texas Instruments & ARM: OMAP Seminar - 21 Jan. 09 – ARM, Cambridge, UK==
+[[Category: Linux]]
-'''Cortex A8 Core– Bryan Lawrence – ARM'''
+==Cortex A8 Core – Bryan Lawrence – ARM==
 * Cortex A8 Core is the design.  OMAP is the physical implementation of this design by TI
 * Cortex A8 is based on V7-A instruction-set architecture and includes:
@@ Line 18: / Line 20: @@
 **Embedded Trace Macrocell (ETM) – captures instruction and data
+==NEON SIMD – Ashley Stevens – ARM==
-−
-'''NEON SIMD – Ashley Stevens – ARM'''
 * Flexible, generic multimedia acceleration
 * High-power consumption than dedicated hardware but supports emerging standards
@@ Line 31: / Line 31: @@
 * Lots of NEON-optimised  codecs available
+==OMAP35x Processor Overview – Chris Bowers – Snr Field Applications Engineer – TI==
-'''OMAP35x Processor Overview – Chris Bowers – Snr Field Applications Engineer – TI'''
 * TI have a range of microcontrollers through t**Application processors & DSP
 * OMAP  tends t**be seen in things like digital signage, POS terminals, portable infotainment etc (Lower power, high performance);  “Laptop-like performance”
@@ Line 64: / Line 63: @@
 **Analog & Micro
+==Understanding 2D/3D Graphics Dev using OMAP 35x - Jason Brand – Fields Apps Engineer – TI==
-'''Understanding 2D/3D Graphics Dev using OMAP 35x - Jason Brand – Fields Apps Engineer – TI'''
 * Lots of uses/major apps;
 **Scalable UI’s , navigation, Games, Visualisations, Automotive
@@ Line 83: / Line 81: @@
 **TI supply compiler tools to optimize for this hardware
+==ARM Software Development Tools – Elan Lennard – System Design Division – ARM==
-−
-'''ARM Software Development Tools – Elan Lennard – System Design Division – ARM'''
 * “Enabling all developers to get the best from their ARM-based system”
 * Quality, high-performance s/w
@@ Line 112: / Line 108: @@
 **Hardware trace/debugger
+==Tool Chain Overview – Chris Bower – TI==
-'''Tool Chain Overview – Chris Bower – TI'''
 * TI Code Composer Toolset
 **DSPBIOS, low level ARM debug, DSP development and debug
@@ Line 131: / Line 126: @@
 **Low-level debug of ARM & DSP
+==OMAP3 OS Support – Jason Brand – TI==
-'''OMAP3 OS Support – Jason Brand – TI'''
 * Fundamentally this is Linux or Windows CE.
 * TI issue a Linux 2.6.22 kernel, includes lots of device drivers, EVM drivers, on top of which:
@@ Line 169: / Line 163: @@
 *Adobe Flash Lite 3 port available for WinCE R2 BSP – OMAP35x EVM
+==Power for OMAP35x Processors – Miriam Corder – TI==
-'''Power for OMAP35x Processors – Miriam Corder – TI'''
 * Max power consumption is 360mW
 * With dynamic voltage/freq scaling – averaging <100mW
 * External power-management chips available  (“analog companion “)
 **Includes audio codec, RTC, USB OTG transceiver, battery charger etc.

@@ Line 141: / Line 141: @@
 **Board boot, test, & flash utils
 **Platform support:
-* U-boot Linux boot-load and flashing
+*** U-boot Linux boot-load and flashing
-* Linux kernel with drivers
+*** Linux kernel with drivers
-* Root fs
+*** Root fs
-**Dem**apps
+**Demo apps
-* Image viewer
+*** Image viewer
-* DaVinci I/F dump
+*** DaVinci I/F dump
 **Code Sourcery tools
 **X-Loader
-* Small user boot-loader t**boot from on-board flash
+*** Small user boot-loader t**boot from on-board flash
-* Must be signed before use
+*** Must be signed before use
 **U-Boot
-* The next-stage boot-loader
+*** The next-stage boot-loader
-* Flexible open-source utility for boot-loading Linux
+*** Flexible open-source utility for boot-loading Linux
-* Capable of reading kernel image from flash, Ethernet TFTP, and ?
+*** Capable of reading kernel image from flash, Ethernet TFTP, and ?
-*ITBOK (is the board ok)
+**ITBOK (is the board ok)
-** Based on u-boot
+*** Based on u-boot
-** Basic H/W functionality tests
+*** Basic H/W functionality tests
 * OMAP35x WinCE Support:
 **TI seeing 40% WinCE vs 60% Linux
@@ Line 174: / Line 174: @@
 * With dynamic voltage/freq scaling – averaging <100mW
 * External power-management chips available  (“analog companion “)
-**Includes audi**codec, RTC, USB OTG transceiver, battery charger etc.
+**Includes audio codec, RTC, USB OTG transceiver, battery charger etc.

@@ Line 155: / Line 155: @@
 * Flexible open-source utility for boot-loading Linux
 * Capable of reading kernel image from flash, Ethernet TFTP, and ?
-**ITBOK (is the board ok)
+*ITBOK (is the board ok)
-* Based on u-boot
+** Based on u-boot
-* Basic H/W functionality tests
+** Basic H/W functionality tests
 * OMAP35x WinCE Support:
 **TI seeing 40% WinCE vs 60% Linux
 **MS suggest that total cost of development is cheaper , and to-market faster than with Linux
-**BSQUARE’s WinCE 6.0 R2 BSP (board support package) Dem**and Source is free with OMAP EVM
+**BSQUARE’s WinCE 6.0 R2 BSP (board support package) Demo and Source is free with OMAP EVM
-* Visual Tools plugin
+** Visual Tools plugin
-* WinCE R2 Pr**compiled with Visual Tools
+* WinCE R2 Pro compiled with Visual Tools
-* Various codecs, DirectShow filters etc. for a/v
+** Various codecs, DirectShow filters etc. for a/v
-* Production Tested (tw**full QA passes)
+** Production Tested (two full QA passes)
-* 100% CETK passed
+** 100% CETK passed
-**Adobe Flash Lite 3 port available for WinCE R2 BSP – OMAP35x EVM
+*Adobe Flash Lite 3 port available for WinCE R2 BSP – OMAP35x EVM

@@ Line 8: / Line 8: @@
 ** TrustZone security foundation (effectively virtualisation of the core)
 * Particularly aimed at applications (rather than real-time or ‘deeply’ embedded)
-* A8 Processor Core (design) can run up t**1GHz +, c. 2000 DMIPS, depending on silicon
+* A8 Processor Core (design) can run up too 1GHz +, c. 2000 DMIPS, depending on silicon
 * MMU for OS virtual memory management
 * Thumb-2  allows 16 & 32-bit instructions. Allows efficient, but small (compressed) code size if required
@@ Line 24: / Line 24: @@
 * High-power consumption than dedicated hardware but supports emerging standards
 * Hybrid 64/128-bit SIMD architecture
-* Supports up t**64-bit integers, single-precision floating-point
+* Supports up too 64-bit integers, single-precision floating-point
 * Adds additional registers
-* Variety of ways t**use:  assembler , C Intrinsics, through t**OpenMAX DL library (recommended), Vectorizing compilers (generates NEON SIMD instructions)
+* Variety of ways to use:  assembler , C Intrinsics, through too OpenMAX DL library (recommended), Vectorizing compilers (generates NEON SIMD instructions)
 * Provides, for e.g., faster FFT’s
 * Armcc vs gcc : armcc produces more compact, faster code.
@@ Line 44: / Line 44: @@
 **3503 - ARM Cortex A8, Peripherals
 **3515 - ARM Cortex A8, Peripherals,  PowerVR SGX (OpenGL ES) graphics engine
-**3525 - ARM Cortex A8, Peripherals,  C64x DSP & vide**accelerator
+**3525 - ARM Cortex A8, Peripherals,  C64x DSP & video accelerator
-**3530 - ARM Cortex A8, Peripherals, PowerVR SGX (OpenGL ES) graphics engine, DSP & vide**accelerator
+**3530 - ARM Cortex A8, Peripherals, PowerVR SGX (OpenGL ES) graphics engine, DSP & video accelerator
 * Camera interface
 **Auto-focus engine
@@ Line 51: / Line 51: @@
 **Preview engine etc.
 * Display subsystem
-**(24-bit RGB up t**1024x768 HD, 2 x 10-bit DAC’s; roration, image resizing)
+**(24-bit RGB up to 1024x768 HD, 2 x 10-bit DAC’s; rotation, image resizing)
 **Overlay, scaling, picture-in-picture
 * Also discussed TI DaVinci platform:  video-centric, based an ARM9, has some overlap with OMAP
@@ Line 60: / Line 60: @@
 **OMAP35x evaluation module (EVM); OMAP 3530 plus touchscreen, RAM & NAND flash, Ethernet etc.
 **BeagleBoard
-**Gumstix Over**(tiny)
+**Gumstix Overo(tiny)
 **LogicPD
 **Analog & Micro
@@ Line 78: / Line 78: @@
 * OpenGL ES support seems powerful
 * Graphics SDK is available from TI; tools, headers, libs, demos etc
-* IVA 2.2 – Image, Video, Audi**subsystem- C64x DSP core:
+* IVA 2.2 – Image, Video, Audio subsystem- C64x DSP core:
 **32-bit fiex-point media processor
-**Vide**& image accelerator
+**Video & image accelerator
 **TI supply compiler tools to optimize for this hardware
@@ Line 86: / Line 86: @@
 '''ARM Software Development Tools – Elan Lennard – System Design Division – ARM'''
-* “Enabling all developers t**get the best from their ARM-based system”
+* “Enabling all developers to get the best from their ARM-based system”
 * Quality, high-performance s/w
 * Tools: Compilation, Optimization, Middleware, Device Support, verification & debug, Fast simulation