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ac6 >> ac6-formation >> Processeurs PowerPC >> NXP Power CPUs >> MPC834X implementation Télécharger le catalogue Télécharger la page Ecrivez nous Version imprimable

FPQ8 MPC834X implementation

This course covers PowerQUICC II Pro MPC834X processors, such as MPC8349A

formateur
Objectives
  • The course focuses on the sequencer that interconnects e300, DDR SDRAM, PCI and external bus.
  • Cache coherency protocol is introduced in increasing depth.
  • The 32-bit e300 core is viewed in detail, especially the MMU and the cache.
  • The boot sequence and the clocking are explained.
  • The course focuses on hardware implementation of the MPC834X.
  • A long introduction to DDR SDRAM operation is done before studying the DDR SDRAM controller.
  • An in-depth description of the PCI controllers is performed.
  • The course highlights both hardware and software implementation of gigabit / fast / Ethernet controllers.
  • The USB interfaces are also detailed.
  • Generation of a Linux image and Root File System by using LTIB can also be included into the training.

  • This course has been delivered several times to companies developing avionics equipments.
A lot of programming examples have been developed by ACSYS to explain the boot sequence and the operation of complex peripherals, such as USB and Ethernet.
•  They have been developed with Diab Data compiler and are executed under Lauterbach debugger.
A more detailed course description is available on request at formation@ac6-formation.com
Prerequisites and related courses

INTRODUCTION TO MPC834X
OVERVIEW
  • General features
  • Enhancements compared to MPC824X
  • Block diagram
  • Features of the MPC8343E, MPC8347E, MPC8349E and MPC8349EA
THE e300 CORE
THE INSTRUCTION PIPELINE
  • Pipeline basics
  • Branch processing unit
  • Branch instructions
  • Simplified branch mnemonics
DATA PATHS
  • Load / store buffers
  • Sync and eieio instruction
CACHES
  • Cache basics
  • Cache locking
  • L1 caches
  • Cache coherency mechanism
  • The MEI state machine
  • Management of cache enabled pages shared with PCI DMAs
  • Reservation coherency
  • Cache related instructions
  • Software enforced cache coherency
  • Cache flush routine
SOFTWARE IMPLEMENTATION
  • PowerPC architecture specification, the 3 books UISA, VEA and OEA
  • e300 registers
  • Addressing modes, load / store instructions
  • Integer instructions
  • Rotate instructions : inserting and extracting bitfields
  • IEEE754 basics, floating points numbers encoding
  • The PowerPC EABI
THE MMU
  • Thread vs process
  • Introduction to real, block and segmentation / pagination translations
  • Real mode restrictions
  • Memory attributes and access rights definition
  • Virtual space benefit, page protection through segmentation
  • TLBs organization
  • Pagination : PTE table organization, tablesearch algorithm
  • Explanation of hash value and API field
  • MMU implementation in real-time sensitive applications
THE EXCEPTION MECHANISM
  • MSR, SPRG0-3, DAR and DSISR supervisor registers description
  • Save / restore registers SRR0/SRR1, rfi instruction
  • Exception management mechanism
  • Requirements to allow exception nesting
THE DEBUG PORT
  • JTAG emulation, restrictions
  • Real time trace requirements
  • Code instrumentation
  • Hardware breakpoints
THE PLATFORM CONFIGURATION
POWER, RESET AND CLOCKING
  • DC and AC electrical characteristics
  • Power management control
  • Reset causes
  • Reset configuration words source, boot from I2C or boot from EEPROM
  • PCI Host / Agent configuration, PCI1 and PCI2 arbiter configuration
  • Clocking in PCI Host mode
  • External clock inputs
  • System PLL ratio
  • Delay Locked Loop
ADDRESS TRANSLATION AND MAPPING
  • Local memory map
  • Local access windows
  • Inbound and outbound windows definition
ARBITER AND BUS MONITOR
  • External signal description
  • PCI outbound window definition
  • Transaction forwarding
SEQUENCER
  • Coherent system bus overview
  • Bus error detection
  • Initialization sequence
GENERAL PURPOSE INPUTS / OUTPUTS
  • Pin model
  • Direction definition
  • Interrupt inputs
THE DDR MEMORY CONTROLLER
  • DDR-SDRAM operation
  • Jedec specification basics, mode register initialization, bank selection and precharge
  • Hardware interface
  • Bank activation, read, write and precharge timing diagrams, page mode
  • ECC error correction
  • DDR-SDRAM controller introduction
  • Initial configuration following Power-on-Reset
  • Address decode
  • Timing parameters programming
  • Initialization routine
LOCAL BUS CONTROLLER
  • Multiplexed 32-bit address and data transfers
  • Burst support
  • Dynamic bus sizing
  • GPCM, UPMs and NFC states machines
PCI BUS INTERFACES
  • Bridge features
  • Data flows : Read prefetch and write posting FIFOs
  • Inbound transactions handling, Outbound transactions handling in both modes
  • PCI bus arbitration
  • PCI hierarchy configuration
INTEGRATED DMA CONTROLLER
  • Priority between the 4 channels
  • Support for cascading descriptor chains
  • Scatter / gathering
  • Selectable hardware enforced coherency
  • Concurrent execution across multiple channels with programmable bandwidth control
  • Messaging unit
  • Doorbells management
INTEGRATED PROGRAMMABLE INTERRUPT CONTROLLER
  • Interrupt masking
  • Definition of interrupt priorities
  • Interrupt management, vector register
  • Requirements to support nesting
  • Machine check interrupts
TIMERS
  • Software watchdog timer
  • Real time clock module
  • Periodic Interval Timer
  • General Purpose Timers, cascaded modes, capture operation
INTEGRATED PERIPHERALS
SECURITY ENGINE
  • Introduction to DES and 3DES algorithms
  • Data packet descriptors
  • Crypto channels
  • Link tables
THE ETHERNET CONTROLLERS
  • 802.3 specification fundamentals
  • Address recognition, pattern matching
  • MII interface
  • Buffer descriptors management
  • The three-speed Ethernet controllers (TSECs)
  • Physical interfaces : GMII, MII, TBI or RGMII
  • Buffer descriptor management
  • Layer 2 acceleration accept or reject on address or pattern match
  • 256-entry hash table for unicast and multicast
THE USB 2.0 CONTROLLERS
  • Multi-port host (MPH) and dual-role (DR) module
  • EHCI implementation
  • UTMI / ULPI interfaces to the transceiver
  • OTG support
  • Dedicated DMA channels
  • Endpoints configuration
  • Queue Element transfer descriptor
  • Management of isochronous pipes
LOW SPEED PERIPHERALS
  • Description of the NS16450/16550 compliant Uarts
  • FIFO mode
  • Flow control signal management
  • I2C protocol fundamentals
  • Transmit and receive sequence
  • SPI protocol basics
  • Master vs slave operation
Linux Target Image Builder (LTIB)
GENERATING THE LINUX KERNEL IMAGE
  • Introducing the tools required to generate the kernel image
  • What is required on the host before installing LTIB
  • Common package selection screen
  • Common target system configuration screen
  • Building a complete BSP with the default configurations
  • Creating a Root Filesystems image
  • e-configuring the kernel under LTIB
  • Selecting user-space packages
  • Setup the bootloader arguments to use the exported RFS
  • Debugging Uboot and the kernel by using Trace32
  • Command line options
  • Adding a new package
  • Other deployment methods
  • Creating a new package and integrating it into LTIB
    • A lot of labs have been created to explain the usage of LTIB