AT91EB42 Atmel, AT91EB42 Datasheet - Page 12

• Manufacturer Part Number: AT91EB42
• Description: KIT EVAL FOR ARM AT91M42800A
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91EB42

• Contents: Evaluation Board, Cable, Power Jack, CD-ROM
• For Use With/related Products: AT91M42800A
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

1708C–ATARM–12-May-05
The On-board Software
3.3
3.4
3-2
Programmed
Default Memory
Mapping
Flash Uploader
! When the SW2 button is pressed:
! When the SW3 button is pressed:
! When the SW4 button is pressed:
! When no buttons are pressed:
Table 3-1 defines the mapping defined by the boot program.
Table 3-1. Memory Map
The Boot Software Program, Functional Test Software (FTS), Flash Uploader and the
power-down demonstration are in sectors 0 and 1 of the Flash device. Sectors 3 to 8
support the Angel Debug Monitor.
Sector 24 at address 0x0110 0000 can be programmed with a user application to be
debugged. This sector is mapped at address 0x0100 0000 (or 0x0 after a reset) when
the jumper JP1 is in the USER position.
The Flash Uploader included in the EB42 Boot Software is the same Flash Uploader
factory-programmed in the Flash-based AT91 devices, the AT91FR4042 and the
AT91FR40162/S. The Flash Uploader allows programming to Sector 24 of 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 Sector 24, the downloading address must
be 0x01100000. The boot starts the Flash Uploader if the SW3 button is pressed at
reset.
The procedure is as follows:
1. Connect the Serial A or B port of the AT91EB42 Evaluation Board to a host PC
2. Start the AT91Loader.exe program available in the AT91 Library on the host com-
Part Name
– Reserved
– All the LEDs light up together.
– The D3 LED remains lit when SW3 is released.
– The Flash uploader is activated.
– All the LEDs light up together.
– The D4 LED remains lit when SW4 is released.
– The power-down function is activated.
– Branch at address 0x01006000.
– The Angel Debug Monitor starts from this address by recopying itself in
Serial port using the straight serial cable provided.
puter. The AT91 Loader must be configured beforehand. See the “Readme.pdf”
file in folder <CDROM>\ToolBox\host_tools\Dev PC windev\AT91Loader\Doc.
U2 - U3
external SRAM.
U1
Start Address
0x01000000
0x02000000
End Address
0x011FFFFF
0x0203FFFF
AT91EB42 Evaluation Board User Guide
256K Bytes
2M Bytes
Size
AT49BV162A
Device
SRAM
Flash