Embest AM3517 Specifications download pdf (Page 36)

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1. Input the following command to begin the touchscreen

calibration procedure:

[root@OMAP3EVM /]# ts_calibrate

Follow the prompts on the screen, click the "+" icon five times to complete

the calibration.

2. After the calibration is complete, enter the following command

for the touch-screen test

[root@OMAP3EVM /]# ts_test

Follow the prompts on the screen to complete testing.

4.3.3 RTC Test

The SOC8200 has a hardware clock, it is used to save and restore the

system time, refer to the following test methods:

1. Set the system time as 5:55 p.m. on the 24

March 2010:

[root@OMAP3EVM /]# date 032417552010

Wed Mar 24 17:55:00 UTC 2010

2. Write the system time into RTC:

[root@OMAP3EVM /]# hwclock -w

3. Read RTC:

[root@OMAP3EVM /]# hwclock

Wed Mar 24 17:55:06 2010 0.000000 seconds

The hardware clock RTC will be set to 24

March 2010 and the system time

is saved in the hardware clock.

4. Reboot the system and input the following commands to restore

the system time.

[root@OMAP3EVM /]# hwclock -s

[root@OMAP3EVM /]# date

Wed Mar 24 17:55:37 UTC 2010

4.3.4 MMC/SD Card Test

1. Insert the MMC/SD card and the system will display the detection

information:

[root@OMAP3EVM /]# mmc0: new MMC card at address 0001

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Embest AM3517 Specifications Page 36