|
|
PDF AT91EB42 Data sheet ( Hoja de datos )
| Número de pieza | AT91EB42 | |
| Descripción | AT91EB42 Evaluation Board | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AT91EB42 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
AT91EB42
Evaluation Board
.............................................................................
User Guide
1 page  
Section 1
Overview
1.1 Scope
The AT91EB42 Evaluation Board enables real-time code development and evaluation.
It supports the AT91M42800.
This guide focuses on the AT91EB42 Evaluation Board as an evaluation and demon-
stration platform:
Section 1 provides an overview.
Section 2 describes how to set up the evaluation board.
Section 3 details the on-board software.
Section 4 contains a description of the circuit board.
Section 5 and Section 6 are two appendices covering configuration straps and
schematics, including pin connectors.
1.2 Deliverables
The evaluation board is delivered with a DB9 plug-to-DB9 socket straight-through serial
cable to connect the target evaluation board to a PC. A bare power lead with a 2.1 mm
jack on one end for connection to a bench power supply is also delivered.
The evaluation board is also delivered with a CD-ROM that contains an evaluation ver-
sion of the software development toolkit and the documentation that outlines the AT91
microcontroller family.
The evaluation board is capable of supporting different kinds of debugging systems,
using an ICE interface or the on-board Angel Debug Monitor. Refer to the AT91EB42
Getting Started Tutorial documents for recommendations on using the evaluation board
in a full debug environment.
1.3 The AT91EB42 The board consists of an AT91M42800 together with several peripherals:
Evaluation Board Two serial ports
Reset push button
Four user-defined push buttons
Eight LEDs
a 256 KB 16-bit SRAM (upgradeable to 1M byte)
a 2 MB 16-bit Flash (of which 1M byte is available for user software)
a 4 MB Serial Data Flash
a 64 KB Serial EEPROM
a 32 KB SPI EEPROM
AT91EB42 Evaluation Board User Guide
1-1
5 Page 
Section 4
Circuit Description
4.1
4.2
4.2.1
4.2.2
4.2.3
AT91M42800
Processor
Figure 6-1 on page 6-2 shows the AT91M42800. The footprint is for a 144-pin TQFP
package.
Strap CB20 enables the user to choose between the standard ICE debug mode and the
JTAG boundary scan mode of operation.
The operating mode is defined by the state of the JTAGSEL input detected at reset.
Jumper JP5 (see Figure 6-8 on page 6-9 in Section 6, “Appendix B – Schematics”) can
be removed by the user to allow measurement of the current demand by the whole
microcontroller (VDDIO and VDDCORE). Jumper JP8 can be removed to measure the core
microcontroller consumption (VDDCORE).
Expansion
Connectors and
JTAG Interface
I/O Expansion
Connector
EBI Expansion
Connector
JTAG Interface
The two expansion connectors, I/O expansion connector and EBI expansion connector,
and the JTAG interface are described below.
The I/O and EBI expansion connectors’ pinout and position are compatible with the
other evaluation boards (except the I/O expansion connector pinout and position of the
EB40) so that users can connect their prototype daughter boards to any of these evalu-
ation boards.
The I/O expansion connector makes the general-purpose I/O (GPIO) lines, VCC3V3
and Ground, available to the user. Configuration straps CB2, CB3, CB4, CB11, CB13,
CB14, CB15, CB17, CB18 and CB19 are used to select between the I/O lines being
used by the evaluation board or by the user via the I/O expansion connector. The con-
nector is not fitted at the factory; however, the user can fit any 32 x 2 connector on a 0.1"
(2.54 mm) pitch.
The schematic (Figure 6-4 on page 6-5 in Section 6, “Appendix B – Schematics”) also
shows the bus expansion connector which, like the I/O expansion connector, is not fitted
at the factory. The user can fit any 32 x 2 connector on a 0.1" (2.54 mm) pitch to gain
access to the data, address, chip select, read/write, oscillator output and wait request
pins. VCC3V3 and ground are also available on this connector.
Configuration strap CB1, when open, allows the user to connect the EBI expansion con-
nector to the MPI expansion connector of an AT91EB63 evaluation board without any
conflicts.
An ARM®-standard 20-pin box header (P5) is provided to enable connection of an ICE
interface to the JTAG inputs on the AT91. This allows code to be developed on the
board without using system resources such as memory and serial ports.
AT91EB42 Evaluation Board User Guide
4-1
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AT91EB42.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AT91EB42 | AT91EB42 Evaluation Board | ATMEL Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |