Difference between revisions of "Leon3"

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(Tom Golubev's Leon3 Based Logic Analyzer)
(Tom Golubev's Leon3 Based Logic Analyzer)
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           Test signals have a prefix T regardless of the bus type. More information on test signals
 
           Test signals have a prefix T regardless of the bus type. More information on test signals
 
           can be found in Chapter 6 AMBA Test Methodology.
 
           can be found in Chapter 6 AMBA Test Methodology.
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Important Sources / Documents:
 +
Nios II / Leon2 Comparison CoSCPU.pdf
 +
Leon2 / MicroBlaze / OpenRISC1200 Comparison Evaluation_of_synthesizable_CPU_cores.pdf

Revision as of 12:32, 11 August 2009

Tom Golubev's Leon3 Based Logic Analyzer

Using NIOSII Cyclone dev board

Leon3 grlib-gpl-1.0.20-b3403

 FPGA Usage (1): EP1C20F400C7
  Configuration:                  LUT Usage (%)        Mem Usage (%)   System MHz 
 (1) Default: noFpu, noMMU               56 %               36 %           135.9 
 (2) noFPU, MMU                          65 %               37 %           134.8 
 (3) Bare                                38 %               18 %           126.1 




(1) Command Used: make distclean && time `make synplify && make quartus-synp`

AMBA BUS Notes: (From 1999 ARM ihi 0011A Document)

AMBA signal names

         All AMBA signals are named such that the first letter of the name indicates which bus
         the signal is associated with. A lower case n in the signal name indicates that the signal
         is active LOW, otherwise signal names are always all upper case.
         Test signals have a prefix T regardless of the bus type. More information on test signals
         can be found in Chapter 6 AMBA Test Methodology.


Important Sources / Documents: Nios II / Leon2 Comparison CoSCPU.pdf Leon2 / MicroBlaze / OpenRISC1200 Comparison Evaluation_of_synthesizable_CPU_cores.pdf