manualshive.com logo in svg

Atmel AT91EB40A, Руководство пользователя

Поделиться
Скачать
Atmel AT91EB40A Скачать руководство пользователя страница 13

AT91EB40A Evaluation Board User Guide

3-1

Rev. 2635C–ATARM–13-May-05

Section 3

The On-board Software

3.1

The AT91EB40A 
Evaluation Board

The AT91EB40A Evaluation Board embeds an AT49BV1604 or AT49BV1614 Flash
memory device programmed with default software. 

When delivered, the Flash memory device contains:

!

the Boot Software Program 

!

the Functional Test Software (FTS)

!

the Flash uploader

!

the Angel Debug Monitor

!

a default user boot with a default application (LED Swing Application)

The boot software program, functional test software (FTS), and the Flash downloader
are in sectors 0 and 1 of the Flash device. Sectors 3 to 8 support the Angel Debug Mon-
itor. The default user boot with a default application is located in sector 24. 

These sectors are not locked in order to provide an easy on-board upgrade. The user
must avoid overwriting these sectors. The remaining sectors are user definable, and can
be programmed using one of the Flash downloader "Flash_16x4" solutions offered in
the AT91 library. See “Appendix D – Flash Memory Mapping” on page 8-1 for further
details. 

3.2

Boot Software 
Program

The boot software program configures the AT91R40008, and thus controls the memory
and other board components. 

The boot software program is started at reset if JP1 is in the STD position. If JP1 is in
the USER position, the AT91R40008 boots from address 0x01100000 in the Flash,
which must have a user-defined boot. 

The boot software program first initializes the EBI, then executes the REMAP procedure
and, finally, checks the state of the buttons as described below.

!

When the SW1 button is pressed:

All the LEDs light up together.

The D1 LED remains lit when SW1 is released.

The Functional Test Software (FTS) is started.

!

The SW2 button is reserved.

Содержание AT91EB40A

Страница 1: ...AT91EB40A Evaluation Board User Guide...

Страница 2: ......

Страница 3: ...On board Software 3 1 3 1 The AT91EB40A Evaluation Board 3 1 3 2 Boot Software Program 3 1 3 3 Programmed Default Memory Mapping 3 2 3 4 Flash Uploader 3 2 3 5 Angel Monitor 3 3 Section 4 Circuit Des...

Страница 4: ...AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05 Section 6 Appendix B Schematics 6 1 6 1 Schematics 6 1 Section 7 Appendix C Bill of Materials 7 1 Section 8 Appendix D Flash Memory Mapping...

Страница 5: ...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 ev...

Страница 6: ...rizes a reset appearance Four user defined push buttons Eight LEDs A footprint of a 256 KB 16 bit SRAM upgradeable to 1M byte 2 MB 16 bit Flash of which 1M byte is available for user software A footpr...

Страница 7: ...s on page 4 1 for more details JTAG ICE Connector ARM7TDMI Processor 256K Byte RAM EBI EBI Expansion Connector AMBA Bridge Push buttons Interrupt Controller PIO Timer Counters AT91R40008 ASB APB Reset...

Страница 8: ...1 4 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05...

Страница 9: ...A grounding strap or similar protective device should be worn when handling the board Avoid touching the compo nent pins or any other metallic element 2 2 Requirements In order to set up the AT91EB40...

Страница 10: ...al The minimum voltage required is 7V Figure 2 2 2 1 mm Socket The board has a voltage regulator providing 3 3V and 1 8V The regulator allows the input voltage to range from 7V to 9V When you switch t...

Страница 11: ...D8 are reserved for future use The LEDs represent the following test functions D1 for the internal SRAM D2 for the external SRAM 1 D3 for the external Flash D5 for the USART D6 reserved D7 reserved D8...

Страница 12: ...2 4 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05...

Страница 13: ...o provide an easy on board upgrade The user must avoid overwriting these sectors The remaining sectors are user definable and can be programmed using one of the Flash downloader Flash_16x4 solutions o...

Страница 14: ...162 S The Flash Uploader allows programming to the Sector 24of Flash through a serial port Either of the on chip USARTs can be used by the Flash Uploader To boot from the application downloaded in the...

Страница 15: ...011FFF The boot program starts it if no button is pressed at reset When Angel starts it recopies itself in internal SRAM in order to run faster The internal SRAM used by Angel is from 0x00020000 to 0x...

Страница 16: ...3 4 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05...

Страница 17: ...being used by the evaluation board or by the user via the I O expansion con nector The connector fitted at the factory is a 32 x 2 connector on a 0 1 2 54 mm pitch 4 2 2 EBI Expansion Connector The EB...

Страница 18: ...respectively The eight general purpose LEDs are connected to PIO P15 to P19 and P3 to P6 4 5 2 Serial Interface Two 9 way D type connectors P3 P4 are provided for serial port connection Serial port A...

Страница 19: ...sources such as memory and serial ports 4 7 Layout Drawing The layout diagram Figure 6 1 on page 6 2 in Section 6 Appendix B Schematics shows an approximate floorplan for the board This has been desig...

Страница 20: ...4 4 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05...

Страница 21: ...ap CB1 On board CS4 Signal Closed 1 AT91 CS4 signal is connected to the EBI expansion connector P1 B21 Open AT91 CS4 signal is not connected to the EBI expansion connector P1 B21 This authorizes users...

Страница 22: ...ter Clock input MCKI is connected to the on board 66 MHz oscillator 2 3 AT91 Master Clock input MCKI is connected to the EBI_MCKI B4 pin of the EBI expansion connector This authorizes the user to inpu...

Страница 23: ...p to 40 MHz to the Y1 footprint 5 Set CB2 to 1 2 before supplying the board 5 2 Power Consumption Measurement Straps JP5A B JP7A B The JP5A B straps enable connection of an ammeter to measure the AT91...

Страница 24: ...he following references for the 512K x 8 SRAM are available Manufacturer Reference Samsung U2 U3 footprint KM68V1002BJ 10 in 32 SOJ 400 package U4 U5 footprint KM68V1002BJ 10 in 32 TSOP2 400F package...

Страница 25: ...rface Memory Figure 6 3 Push Buttons LEDs and Serial Interface Figure 6 4 Reset and JTAG Interface Figure 6 5 AT91R40008 Figure 6 6 I O and EBI Expansion Connectors Figure 6 7 Power Supply Figure 6 8...

Страница 26: ...6 2 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05 Figure 6 1 PCB Layout...

Страница 27: ...AT91EB40A Evaluation Board User Guide 6 3 2635C ATARM 13 May 05 Figure 6 2 SRAM Memory Devices and Two wire Interface Memory Not mounted...

Страница 28: ...6 4 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05 Figure 6 3 Push Buttons LEDs and Serial Interface...

Страница 29: ...AT91EB40A Evaluation Board User Guide 6 5 2635C ATARM 13 May 05 Figure 6 4 Reset and JTAG Interfaces JTAG Connector Front View 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20...

Страница 30: ...6 6 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05 Figure 6 5 AT91R40008...

Страница 31: ...AT91EB40A Evaluation Board User Guide 6 7 2635C ATARM 13 May 05 Figure 6 6 I O and EBI Expansion Connectors...

Страница 32: ...6 8 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05 Figure 6 7 Power Supply...

Страница 33: ...AT91EB40A Evaluation Board User Guide 6 9 2635C ATARM 13 May 05 Figure 6 8 Flash Memory Devices AT49BV162A VPP...

Страница 34: ...6 10 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05...

Страница 35: ...o C43 47 pF Ceramic Capacitor X7R 10V 7 1 C60 3 3 nF Ceramic Capacitor X7R 10V 8 11 C25 C71 to C77 C82 C83 C86 10 nF Ceramic Capacitor X7R 10V 9 4 C10 C11 C14 C15 47 nF Ceramic Capacitor X7R 10V 10 28...

Страница 36: ...olor 35 2 D20 D21 LED SMT LED Yellow color 36 1 F1 POLYSWITCH Fuse RARM 1000 mA 30V 37 1 L1 10 H Self 10 H at 1A and 500kHz 38 6 SW1 to SW5 S2 Push Button Push Button KSA 39 1 Y1 66 MHz Oscillator 3 3...

Страница 37: ...Figure 8 1 EB40A Flash Memory Software Mapping Not Used LED Swing Application Example Not Used Not Used Angel Debug Monitor Free Sector for Boot Upgrade Flash Uploader Functional Test Software Boot Pr...

Страница 38: ...8 2 AT91EB40A Evaluation Board User Guide 2635C ATARM 13 May 05...

Страница 39: ...ROM with two wire interface access Section 3 2 Removed all references to SRAM Downloader Replaced the description of When SW2 button is pressed by Reserved Section 3 4 Removed Section 3 5 Replaced AT9...

Страница 40: ...8 441 0311 Fax 1 408 487 2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH 1705 Fribourg Switzerland Tel 41 26 426 5555 Fax 41 26 426 5500 Asia Room 1219 Chinachem...

Страница 41: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Microchip AT91EB40A...

Отзывы:

Нет отзывов

Бренды по названию

Популярные бренды

Загрузить еще бренды