UM0842 datasheet(9/50 Pages) STMICROELECTRONICS

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UM0842

Getting started

Doc ID 16542 Rev 4

9/50

Getting started

4.1

Unpacking

Warning:

This board contains static sensitive devices.

The EVALSPEAr320PLC evaluation board is shipped in protective anti-static packaging. Do

not submit the board to high electrostatic potentials, and follow good practices for working

with static sensitive devices.

Wear an anti-static wristband

. Wearing a simple anti-static wristband can help

prevent ESD from damaging the board.

Zero potential

. Always touch a grounded conducting material before handling the

board, and periodically while handling it.

Use an anti-static mat

. When configuring the board, place it on and anti-static mat to

reduce the possibility of ESD damage.

Handle only the edges

. Handle the board by its edges only, and avoid touching board

components.

4.2

Connecting

Connect a serial cable from the application board (connector CN13: RS232_0/UART0)

to a host PC (see Figure 4: Application board layout).

On a host PC running Windows or Linux, start the Terminal program.

Connect a power supply to the SPEAr320 PLC evaluation board as described in

Section 5.5: Power supply on page 14.

Power on the board. The Terminal program displays a sequence of boot messages

followed by the Linux console prompt.

For more information, refer to user manual UM0844 "Getting started with Linux for SPEAr"

available at www.st.com/spear.

4.3

Bootinging

The SPEAr320 PLC evaluation board can boot a Linux kernel pre-installed in the serial NOR

Flash.

At power on, the serial port outputs a brief header message with some uBoot information

(uBoot version, SDK version, and some internal hardware information). At this point you can

choose to:

Stop the system directly in uBoot

: Press the spacebar on the host computer

keyboard before the boot delay time expires (default is 3 seconds).

Boot Linux

: The system logs you in automatically as super user and the Linux shell

prompt displays on the screen.

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