Cypress DCT-1D Guide de l'utilisateur Page 44
- Page / 82
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
44
CHAPTER 4. LAB TASK 2 - DESIGN A JPEG ACCELERATOR
...
DCT2 Control Unit
csr
DCT
64
8x16=128
32
NC
32 NC
RAM
in
8x12=96
t_wr
t_rd
8x12=96
WB
Ctrl
Transpose
Memory
Block
1
counter
wb.adr
wb.stb
wb.ack
wb.dat_o
3232
Q2
Block
RAM
out
32
NC
1
counter
wb.dat_i
wb.adr
wb.dat_o
Figure 4.1: Proposed architecture for the 2-D DCT-accelerator. csr is a Control/Status
register. Not all wires are shown.
2. A row of the image is read from the in RAM in 2 clock cycles. This is repeated
8 times.
3. The rows are transformed in DCT (12-bit signed numbers) and written to the
transpose memory in the same tempo
4. When all rows have been written to T, columns, 8 × 12 bits, can be read from
T and fed into the DCT again. A complete column can be read per clock cycle.
After the second DCT the values are 16-bit signed numbers.
5. Finally 2 × 16 bits per clock cycle are quantized in Q2 and written to the out
RAM. When all columns have been written, the RDY bit in csr is set.
You will receive a Verilog module, dct.v, that computes a 1-D DCT multiplied
with
√
8. This file is a straightforward implementation in Verilog of the computation
schemes (modified Loeffler) in Figures 3.7 and 3.8 in Chapter 3.
Preparation task 6
Open the file
dct.v
and have a look at what it does. What are the inputs, what are the
outputs? How many clock cycles does a computation take? Is it pipelined?
4.2.1 Block RAMs in VirtexII
The VirtexII-4000 FPGA contains 120 18 kbit block RAMs. They are dual ported with
two completely independent sets of synchronous read and write ports. The easiest way
- 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
Produits connexes et manuels pour Non Cypress DCT-1D
Non Cypress CY8C20x66 Spécifications
(31 pages)
(31 pages)
Non Cypress CY14B108L Manuel d'utilisateur
(28 pages)
(28 pages)
Non Cypress CY8C20x66 Manuel d'utilisateur
(35 pages)
(35 pages)
Non Cypress CDL-165PRO Spécifications
(24 pages)
(24 pages)
Non Cypress CWF-901SP Manuel d'utilisateur
(16 pages)
(16 pages)
Non Cypress CLUX-1H4CAT Manuel d'utilisateur
(28 pages)
(28 pages)
Non Cypress CY62128EV30 Manuel d'utilisateur
(13 pages)
(13 pages)
Non Cypress CY14B104L Manuel d'utilisateur
(25 pages)
(25 pages)
Non Cypress CY62128EV30 Manuel d'utilisateur
(14 pages)
(14 pages)
Non Cypress CY14B104LA Manuel d'utilisateur
(11 pages)
(11 pages)
Non Cypress CY14B104NA Manuel d'utilisateur
(23 pages)
(23 pages)
Non Cypress CY14B101NA Manuel d'utilisateur
(26 pages)
(26 pages)
Non Cypress CY14B104M Spécifications
(29 pages)
(29 pages)
Non Cypress CY14B108K Spécifications
(36 pages)
(36 pages)
Non Cypress CWF-901SP Spécifications
(24 pages)
(24 pages)
© 2020, manymanuals.fr. Tous droits réservés | 0.064 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Commentaires sur ces manuels