AT91EB40 Atmel, AT91EB40 Datasheet - Page 12

• Manufacturer Part Number: AT91EB40
• Description: AT91 ARM X40 SERIES EVAL KIT
• Manufacturer: Atmel

Specifications of AT91EB40

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

The On-board Software
3.1.2
3.1.3
3.1.4
3-2
Boot Software
Functional Test
Software (FTS)
SRAM Downloader
The boot software is started at the reset if SW1 is switched to “LOWER MEM”.
It first initializes the EBI, then executes the REMAP procedure, and then checks the
state of the buttons:






The FTS is a part of the boot software that allows testing of the AT91EB40. It is started
by the boot if the FIQ button is pressed at reset. At start of the FTS, the LEDs 1, 2 and 3
light up. The user must then release the FIQ button. The LEDs switch off and then blink
once.
The FTS then waits for one of the following user actions on the buttons:






The SRAM downloader is a part of the boot software and allows an application in the
SRAM to be loaded at the address 0x02000000 when activated. It is started by the boot
if the button TIOB1 is pressed at reset.
The procedure is as follows:
1. Connect the AT91EB40 to the host PC using either the straight serial cable (pro-
2. Set the clock frequency (LK2) to the desired frequency. Note that this directly
3. Generate a power-on or a reset with the TIOB1 pressed down. Wait for the red
4. Start the BINCOM utility available in the AT91 library on the host computer:
5. Press the button IRQ0 to terminate the download. The control is switched to the
If the button FIQ is pressed, all the LEDs are lit and the Functional Test Software
(FTS) is activated.
If the button TIOB1 is pressed, the red LED is lit and the SRAM downloader is
activated.
If neither TIOB1 nor FIQ are pressed, the amber LED is lit and Angel is activated.
If the TIOB1 button is pressed, the memory size is checked and the green LED blinks:
If the FIQ button is pressed, the USART are tested:
If the IRQ0 button is pressed, the buses of the SRAM are tested:
- 1 = 256K bytes
- 2 = 512K bytes
- 3 = 1024K bytes
- 4 = 2048K bytes
- Transfer one character from USART 0 to USART 0 (loopback mode)
- Transfer one character from USART 1 to USART 1 (loopback mode)
- Transfer one character from USART 0 to USART 1 (normal mode)
- Transfer one character from USART 1 to USART 0 (normal mode)
For each case, the green or the red LED blinks once following the positive or nega-
tive result of the test. Note that the second and third tests can succeed only if the
straight serial cable (provided) is connected between Serial A and Serial B.
- Address bus
- Data bus
In each case, the green or the red LED blinks once following the positive or negative
result of the test.
vided) on Serial A, or a crossed serial cable (not provided) on Serial B.
determines the baud rate for the download (See Table 3-1).
LED to light up and then release the TIOB1 button.
Select the port and the baud rate for communications, then open the file to down-
load and send it. Wait for the end of the transfer.
address 0x02000000.
AT91EB40 Evaluation Board User Guide