Cypress DCT-1D Betriebsanweisung PDF herunterladen (Seite 19)

1.4. SOFTWARE

Listing 1.3: Link script for simpleprog (Listing 1.1)

MEMORY

{

vec tors : ORIGIN = 0 x00000000 , LENGTH = 0 x000020 00

sdram : ORIGIN = 0 x00002000 , LENGTH = 0 x03ff e000

}

SECTIONS

{

. vectors :

{

*(. vectors )

} > vectors

. text :

{

*(. text )

} > sdram

. rodata ALIGN (4) :

{

*(. rodata )

} > sdram

. rodata . str1 .1 ALIGN (4) :

{

*(. rodata . str1 .1)

} > sdram

. data ALIGN (4):

{

*(. data )

} > sdram

. bss ALIGN (4):

{

*(. bss )

} > sdram

}

1.4.3 The simulator or32-uclinux-sim

The simulator is started with the command

or32-uclinux-sim -f sim.cfg prog ,

where sim.cfg describes the hardware and prog is the program to run on the simu-

lated hardware. Some help is printed out by the command

or32-uclinux-sim -h .

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 81 82

Laboratory manual for TSEA44 1
Contents 3
CONTENTS 4
The system 7
1.2 Hardware 8
1.2. HARDWARE 9
1.2.3 Virtex-II 4000 FPGA 10
1.3 Open RISC 11
CHAPTER 1. THE SYST EM 12
1.3.3 OR1200 CPU 13
1.3.5 Memory Controller 15
1.3.6 Ethernet Controller 15
1.4 Software 16
1.4. SOFTWARE 17
1.4.4 µClinux 20
Lab task 0 - Build a UART in 23
2.2.2 The hardware 24
2.2.3 A simple testbench 24
2.2. A SIMPLE UART 25
2.3 Exercises 26
Preparation task 1 26
Laboration task 1 26
2.4 gtkterm usage 27
Wishbone bus 29
Master Slave 30
3.2.1 A Wishbone Interconnect 31
3.3 A Simple Computer 32
Preparation task 2 33
Preparation task 3 34
Preparation task 4 34
Laboration task 2 35
3.4 A Benchmark Program 36
3.4. A BENCHMARK PROGRAM 37
Preparation task 5 38
Laboration task 3 39
3.6 Useful Commands 40
3.7.1 A Note on Volatile 41
Lab task 2 - Design a JPEG 43
Preparation task 6 44
4.2.2 Distributed RAMs 45
Preparation task 7 46
Laboration task 4 47
Laboration task 5 47
4.3 Introduction to µClinux 47
Laboration task 6 47
Laboration task 7 48
4.4 Introduction to jpegﬁles 48
Preparation task 8 49
Laboration task 8 50
Laboration task 9 50
4.5 Timestamps 50
4.6 Quantization 51
Preparation task 9 52
4.7 Tips and tricks 53
Lab task 3 55
WAITREADY 56
GETBLOCK 56
WAITREADY_LAST RELEASEBUS 56
5.1.2 jpeg_dma.sv 56
Preparation task 10 58
Laboration task 10 58
Laboration task 11 58
Laboration task 12 58
CHAPTER 5. LAB TASK 3 60
Chapter 6 61
Preparation task 11 62
Preparation task 12 62
6.2 Adding a New Instruction 62
6.3 Proposed Architecture 63
6.4 Hardware Implementation 64
6.5 Software Implementation 65
Laboration task 13 67
Laboration task 14 67
6.7 Tips and tricks 68
6.9 Beyond tsea44 70
Bibliography 71
BIBLIOGRAPHY 72
Open RISC Reference Platform 73
A.2 Interrupts 74
The Wishbone speciﬁcation 75
B.2 Interface signals 76
−WSS−CLK_I 77
B.5 System Verilog Interface 79
Tips & Trix 81
APPENDIX C. TIPS & TRIX 82

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