M1	405GP implementation

This course covers AMCC 405GP processor

Objectives The course explains how to design a 405GP based board. The SDRAM controller is viewed in detail. A boot firmware that initializes the MMU has been developped. The course provides an example of interrupt handler that supports nesting. External control of DMA channels working in scatter / gather mode is described. The course explains the fast ethernet controller operation. This training has been delivered several times to companies developing embedded systems based on 405GP (Defence systems, multimedia systems). A chapter on Linux porting can be appended on request. Labs are compiled with Diab Data compiler and run under Lauterbach debugger. A more detailed course description is available on request at info@ac6-formation.com

Prerequisites
	Experience of a 32 bit processor or DSP is mandatory.
	Knowledge of PCI bus is recommended (see our course reference IC1).

Plan

INTRODUCTION TO 405GP Internal bus organization : PLB, OPB, DCR Internal concurrent transfers examples 405GP CPU board architecture examples 405GP mapping THE 405 CORE 5-stage pipeline operation Speculative execution, guarded memory, SGR register Serialization Cache basics Data flow between external memory and caches Memory Management Unit : memory attributes definition (cache enabled / cache inhibited, copyback / writethrough Translation Lookaside Buffer initialization Load / store buffer, sync instruction PowerPC ARCHITECTURE FOR EMBEDDED Branch instructions Load / store instructions Arithmetical and logical instructions, shift and rotate instructions The PowerPC EABI Cache related instructions 16-bit mac instructions to develop fixed point DSP algorithms Exception processing Critical versus non critical interrupts Syndrome registers updating when an exception is taken Core timers : PIT, FIT and WDT INTERNAL BUSES PLB bus : transfer protocol, split mode advantage, arbiter initialization OPB bus : parking strategy, arbitration The PLB-to-OPB bridge The DCR bus Internal busses related registers initialization Bus fault management using syndrome registers CLOCKS, RESET AND POWER MANAGEMENT Clocks synthesizer PCI synchronous versus asynchronous mode PLL multiplication ratio selection PLLMR and CHCR0 registers initialization Low power modes The core, chip and system reset effects on 405GP internal resources Initialization code example 405GP hardware configuration with strap pins INTERRUPT CONTROLLER Interrupt sources enumeration Interrupt masking and acknowledgement explanation Vectorization mechanism for critical interrupts THE SDRAM CONTROLLER Page mode Mode register initialization Bank selection and precharge SDRAM control truth table Chip selection with DQM pins Bank activation, read, write and precharge timing diagrams ECC error correction 405GP SDRAM controller features Timing parameters programming

THE EXTERNAL BUS CONTROLLER External bus pinout Dynamic bus sizing Timing parameters initialization in PB0-7AP registers for either bursting or non bursting devices Timing diagrams External acknowledge with the Ready input External master interface : arbitration timing diagram THE PCI2.2 BRIDGE PCI bridge features 405GP as a PCI target 405GP as a PCI master 405GP as PCI configurator Internal arbiter initialization 405GP used on a PCI expansion board THE 4 DMA CHANNELS Burst mode support Related signals Channels bus priority Data packing / unpacking Buffers chaining through the scatter / gather mode THE FAST ETHERNET CONTROLLER Frame description with or without VLAN option 405GP Ethernet controller organization MII interface Hash table disadvantage Buffer descriptors management Interrupt management THE UARTS Transmission and reception FIFOs use Flow control signals management THE IIC INTERFACE Protocol basics Transfer timing diagrams, IICSCL and IICSDA pins Transmission and reception sequence THE INTERNAL DEBUG TOOLS JTAG debug restrictions Logic analyser connection through Mictor connectors The trace port

 

Durée	Prix	Calendrier
5 jours	2100 €