Arietta G25

Foto
Basisdaten
Status	funktionstüchtig
Schöpfer	ACME Systems

Das Arietta G25 Board ist ein SoC ARM9@400MHz. Es ist aufgrund seiner Größe (25x53mm) und Preises von 20€ bzw. 30€ interessant.

Linksammlung

• Allgemeine Produktseite
• SoC AT91SAM9G25 datasheet
• J4 PinOut & Device Tree Compiler
• Stromaufnahme
• Jürgen's LED Spielplatz

Debug Port Interface

Pinbelegung

Farbkodierung entsprechend FTDI-Standardbelegung

1	2	3	4	5	6
Vcc 3V3	EN5V (in)	TxD (out)	RxD (in)	WKUP (in)	GND

Software

115200 Baud 8N1 nofc

HowTos

http://wiki.fablab-nuernberg.de/w/Ding:Arietta_G25/howto-kernel

GPIO Kernel IDs

Kernel IDs

PINNAME	Offset	Pin-Nr	KERNELID
PA0	0	0	0
PA1	1	1	1
...
PB0	32	0	32
PB1	32	1	33
...
PC0	64	0	64
PC1	64	1	65
...
PD0	96	0	96
PD1	96	1	97
...

root@arietta:~# echo <KERNELID> > /sys/class/gpio/export

root@arietta:~# ls -al /sys/class/gpio/pio<PINNAME>/
total 0
drwxr-xr-x 3 root root    0 Jan  1 02:52 .
drwxr-xr-x 4 root root    0 Jan  1 02:46 ..
-rw-r--r-- 1 root root 4096 Jan  1 02:52 active_low
lrwxrwxrwx 1 root root    0 Jan  1 02:52 device -> ../../../fffff400.gpio
-rw-r--r-- 1 root root 4096 Jan  1 02:52 direction
-rw-r--r-- 1 root root 4096 Jan  1 02:52 edge
drwxr-xr-x 2 root root    0 Jan  1 02:52 power
lrwxrwxrwx 1 root root    0 Jan  1 02:46 subsystem -> ../../../../../../../class/gpio
-rw-r--r-- 1 root root 4096 Jan  1 02:46 uevent
-rw-r--r-- 1 root root 4096 Jan  1 02:52 value

root@arietta:/sys/class/gpio# echo <KERNELID> > unexport

root@arietta:/sys/class/gpio# ls -al /sys/class/gpio/pio<PINNAME>/
ls: cannot access pio<PINNAME>/: No such file or directory

WiFi

root@arietta:~# lsusb
Bus 001 Device 002: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

root@arietta:~# iwconfig
lo        no wireless extensions.
usb0      no wireless extensions.
sit0      no wireless extensions.
wlan0     IEEE 802.11bgn  ESSID:off/any 
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off

root@arietta:~# vi /etc/network/interfaces
auto lo
iface lo inet loopback
  pre-up modprobe g_ether
  auto usb0
  iface usb0 inet static
  address 192.168.10.10
  netmask 255.255.255.0
  #gateway 192.168.10.20

auto wlan0
iface wlan0 inet dhcp
  wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
~
~
~

root@arietta:~# vi /etc/wpa_supplicant/wpa_supplicant.conf
network={
  ssid="YOURSSID"
  psk="YOURPSK"
  proto=RSN
  key_mgmt=WPA-PSK
  pairwise=CCMP
  auth_alg=OPEN
}
~
~
~