Cypress AN2121SC Скачать руководство пользователя страница 13

EZ-USB Series 2100

Anchor Utilities

Anchor Chips provides the best
tools to accelerate the developer’s
firmware development. The USB
Control Panel allows the developer
to send and receive interrupt, bulk,
and isochronous packets and
standard USB device requests
without first developing the host-
based driver for the specific
application. The USB Control
Panel provides manual control of
USB host controller response. It can
be used to test a multitude of
operating conditions without first
learning low-level USB program-
ming. The user can quickly test
different packet sizes and emulate
USB host application responses. In
addition, users can quickly test
and adjust firmware based on
immediate results from the USB
Control Panel.

Also in the EZ-USB development
kit is the EZ-USB 8051 firmware
library and firmware frame-
works.  With this library of
predefined function calls, devel-
opers can quickly develop their
peripheral function. The firm-
ware library includes functions
such as ReNumeration, I

2

C

programming, descriptor table
parsing, USB initialization, device
initialization, suspend/resume
and complete USB standard
device request processing.

Device Driver

A general-purpose device driver
is included in the Xcelerator
development kit. It is a WDM
driver for Windows 98 or OSR
2.1. With source code provided,
peripheral driver developers can
convert this code to a miniport
driver to meet their unique needs.

·

EZ-USB Development Board

·

EZ-USB Peripheral Board

·

EZ-USB Firmware Library and Firmware Frameworks

·

EZ-USB General-Purpose Device Driver

·

EZ-USB Driver and Firmware Sample Code

·

EZ-USB Control Panel

·

EZ-USB Documentation

·

Reference Schematics

·

8051 C Compiler from Keil Software

·

8051 Assembler from Keil Software

·

8051 Custom Debugger from Keil Software

The EZ-USB Series 2100

Xcelerator Development Kit

(AN2131-DK-001)

Содержание AN2121SC

Страница 1: ...also supports an equiva lent data transfer rate for bulk packets of over 2 Mbytes per second which is more than the USB bandwidth The EZ USB family conforms to the high speed 12 Mbps require ments of...

Страница 2: ...y eliminates the need to become an expert in USB It allows the designer to take advantage of the benefits of USB without investing large amounts of time and energy With the EZ USB family peripheral de...

Страница 3: ...nificantly less 8051 USB code since core handles most USB activity Architecture Shortened USB learning curve Quicker working prototypes and final production models More software development time to de...

Страница 4: ...gn implementation Peripheral manufacturers can provide firmware updates in conjunction with driver changes via a floppy disk or through Internet downloads Thus Unprecedented Soft Architecture software...

Страница 5: ...code download while holding the 8051 in reset Once enumerated the host PC downloads 8051 code into EZ USB RAM over the USB interface Anchor Chips supplies the software tools to incorporate the loader...

Страница 6: ...compared to other solutions And since less memory is needed for firmware board size and system cost are reduced Automatically Handles Low Level USB Overhead Test Code Supports USB Chapter 9 String des...

Страница 7: ...rt address of the requested descriptor data 2 The EZ USB core does the rest The EZ USB core automatically takes care of error checking and retries dividing the table into packets for the various IN tr...

Страница 8: ...he last frame s data while the other FIFO empties or fills with new USB data A single movx instruction transfers data between EZ USB endpoint FIFOs and external logic in two cycles or 330 nano seconds...

Страница 9: ...ike the FRW signal the FRD signal may be tailored for different interface requirements support extra features such as a second data pointer a second UART cycle stretched timing an expanded interrupt s...

Страница 10: ...ware Because of the flexibility of the external EEPROM and inter nal RAM manufacturers have the option to make last minute changes to a design code without impacting production schedules External mem...

Страница 11: ...ata integrity must be guaran teed but without critical delivery time The EZ USB family provides 14 bulk endpoints seven IN and seven OUT These endpoints can be programmed to be double buffered which i...

Страница 12: ...signals and provide a convenient interface to a logic analyzer C Compiler from Keil The C compiler from Keil Soft ware lets the designer write 8051 microcontroller applications in C and still get the...

Страница 13: ...are frame works With this library of predefined function calls devel opers can quickly develop their peripheral function The firm ware library includes functions such as ReNumeration I2 C programming...

Страница 14: ...nd Pin Definitions 1 10 10 9 90 13 45 12 95 8 00 REF 11 33 23 12 22 44 34 0 80 BSC 44 PQFP 2 35 MAX 0 45 0 30 0o 7o 1 00 0 80 1 95 0 15 80 Pin Lead Detail 2 7 6 2 6 6 0 28 0 18 8 Places 12o REF Base P...

Страница 15: ...o P d n u o r G d n a r e w o P d n u o r G d n a r e w o P d n u o r G d n a r e w o P 7 7 8 1 D N G A 0 1 0 1 1 2 C C V A 5 4 3 1 3 2 2 1 6 8 3 4 3 5 4 3 1 3 2 2 1 6 8 3 4 3 3 1 6 5 3 3 2 7 1 4 1 3...

Страница 16: ...10 Fax 408 943 6848 www cypress com Anchor Chips Incorporated 12396 World Trade Drive M S 212 San Diego CA 92128 Telephone 858 613 7900 Fax 858 676 6896 www anchorchips com A Business Unit of Cypress...

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