Atmel SAMA5D3 Xplained, Add-On Boards + LCD Bundle - Review

Table of contents

RoadTest: Atmel SAMA5D3 Xplained, Add-On Boards + LCD Bundle

Author: gregoryfenton

Creation date:

Evaluation Type: Independent Products

Did you receive all parts the manufacturer stated would be included in the package?: True

What other parts do you consider comparable to this product?: TBC

What were the biggest problems encountered?: Lack of available information, but that's what this review aims to provide :)

Detailed Review:

Latest news

08:22 AM, 10 October 2004

I have successfully installed Linux Debian on the board and am trying to get the framebuffer working.

I believe the issues I am having are caused by the onboard power regulator, an act8865 power regulator that uses i2c to communicate with the host board and causes device contention.

 

To get to the same stage I am at currently follow the guide at https://eewiki.net/display/linuxonarm/ATSAMA5D3+Xplained

 

I have been playing about with various options such as disabling the 8865 when I run build_kernel and sending the disable bytes over i2c. I'll get there


When running with the debian image you get a nice startup screen, I have also edited the file atmel.bmp and added custom strings to the startup page.


To get wifi working, when doing the build-kernel step:

[*] Networking support -> Wireless -> [*] cfg80211 wireless extensions compatibility


2:27 AM, 27 September 2014

I have the frame buffer working in a fashion, I can display RGB565 images (currently upside down and back to front but it is a massive start!)

 

 

This is a placeholder for my review and will change as the review progresses.

 

The board works in linux and appears on my system as

/dev/ttyACM0

when plugged in via the micro USB port.

 

When plugging in via network, the device can get its own IP address using DHCP. Be aware that the MAC address changes at each reboot to a random address. You could (possibly) fix this using /etc/network/interfaces

 

The blue flashing light will rapidly become little more than an annoyance. Luckily we can log into the board using SSH over the network or the micro USB port using a serial terminal program such as putty or minicom.

To turn the blue LED off, type in the following:

echo none > /sys/class/leds/d2/trigger

To see what else the LED will automatically flash to, type in the following:

cat /sys/class/leds/d2/trigger

which will give the following list:

none nand-disk timer [heartbeat] gpio mmc0 mmc1

By default, the trigger is heartbeat which pulses like a well, pulse.

none means the light does not flash

nand-disk happens whenever the internal NAND memory is accessed

timer flashes once a second

heartbeat pulses like a heart

gpio flashes whenever a GPIO port is accessed

mmc0 flashes whenever the bottom SD card slot is accessed

mmc1 flashes whenever the optional top SD card slot is accessed

Anonymous