??Cypress??USB???? ????????

1
??Cypress??USB????????????
??????????????

• ? ? ? ? ? ?
• ????? ?

?????????????? 2008?6?16?
2
????

• CMOS?????
• ????
• ????
• ???
• USB2.0??????
• ????
• ????
• ????
• ?????

3
???????

• ??MuTech Phoenix??

• ?????????

4
USB????????
5
USB??????????

• CMOS?????Micron MT9M001 CMOS?????
• ?????1280X1024 SXGA
• 30?/?????
• ??????
• ????????? ????????
• USB???Cypress EZ-USB FX2 CY7C68013 USB???
• ??USB2.0????SIE(??????)????8051????
• ???????(GPIF),8?/16?????
• ???????(????????)

6
EZ-USB FX2 68013 USB???

• USB????????????,???????????USB??????????,?????8051
  ?????????
• ???????GPIF??/???FIFO(8??16?????)?ATA?UTOPIA?EPP?P
  CMCIA?DSP????????????????

7
????????

• ????????CPU????????????FIFO,???CPU????????????????
  ??,????????CPU??????????????????,?????????????
• FX2????????????????????,??CPU????8051????????????F
  IFO?????????????????????????????????,???????????

8
??FIFO

• FX2??????????????????????????
• FX2?????(EP2?4?6?8)???????????????

9
??FIFO
???
USB?

• ?????FIFO?
• ?????????
• ????USB?????????
• ??????????????

10
??????
11
??????
12
?????????
?? ??
Fw.c ?????
camera.c ????????
GPIF.c GPIF????
fx2.h fx2reg.h fx2sdly.h intrins.h FX2 ?????????? ????????
ezusb.lib ???????
dscr.a51 ??????
13
??????

• ????????????
• ?????????,??????
• ??????????
• TD_Init()
• ????????????
• ?????I/O
• TD_Poll()
• ????,??GPIF??
• ????CMOS????
• DR_VendorCmnd()
• ????????????

14
???????GPIF

• ???GPIF?
• ???????GPIF?????????FIFO???????,?????????????(????
  ???)?????????GPIF,?FX2?????????????????????????,?C
  PLD?
• GPIF?????
• GPIF????FX2???ASIC?????????????,????????????????AT
  API(PIO?UDMA)?EPP?????Utopia????????,FX2??????USB?
  IDE??????CF???????
• ????GPIF?????
• GPIF????Cypress?????GPIF Designer?????????,???????
  ????c?????????

15
GPIF????

• ??????????IFCLK
• 6????????CTL50
• 9??????GPIFADR80
• 6?????????RDY50
• ??8??16?????FD150

16
GPIF????
17
GPIF????
18
Flow State

• ??????????????????,GPIF?FIFO????????????Flow
  State????Flow State???????,?????????????RDY??????R
  DY??(??????)???GPIF????????????
• ?????????IFCLK??????????????,??,?????48MHz???16???
  ????GPIF??????96MB/s???????

IFCLK
????
19
Flow State

• GPIF??SLAVE??
• ??CMOS??????L_Valid??Flow State????
• ???????????

20
???????????

• FX2????ezusb.sys?CYPRESS??????????????????????????
  ??????????,??????????,???????????usbcam.sys?
• ????????????????????,??VC6.0 MFC??????????
• ??USB??
• ?????????????
• ???????????
• ???????
• ??????????????,??????Win32??CreateFile()??????????
  ?????????????Win32??DeviceIoControl()???I/O???(IOC
  TL),?????????????

21
??????

• MFC
• ?????
• GDI??

22
?????
??????
???
23
????????
24
????????
25
??

• ?????USB2.0??,?????????????????????USB???????????
• ???USB2.0????CY7C68013?CMOS???????????????????????
  ??PCB???????????????????
• ???CY7C68013???????????????GPIF
  Designer,????????????GPIF FIFO????,????CMOS???????
  ?????????????????
• ??Microsoft Visual C6.0?????????????,???CMOS????
  ????

26
????????! Thanks For Your Attention!