APF6Dev

Description

This is the Armadeus System's standard development board/baseboard for the APF6 module.

The following options are available:

• GPS
• GSM

Errata

• As the board is also used for APF6_SP module (APF6+FPGA), you might experience some miscellaneous FPGA LED blinking (beside "FPGA_SW" button) when no FPGA is present.

Resources

• Datasheet and schematics
• Product page on Armadeus Systems website

Feature list

Audio SGTL5000: audio in/out ALSA Video Out LCD BackLight FrameBuffer HDMI Video In Camera interface

User Input Touchscreen Wired communication UART SPI I2C USB Host USB_OTG USB_Gadget CAN bus PCIE Storage MultiMediaCard SATA

Realtime clock RTC Wireless communication WiFi usage on Linux Bluetooth usage on Linux FPGA connections HSMC connector JTAG Button Led Other PWM: PWM3 output is on J2 pin 26 (2.8V output), but also used by LCD backlight ! GPIOlib JTAG

Connectors

Name Function J17 Gigabit Ethernet J15 HDMI J29 Power (12V) J36 JTAG J5 Extension 1 J18 Extension 2

Tips

U-Boot

• To use 7" 800x480 LCD with 3.10/3.14/4.1 legacy kernels:

BIOS> setenv extrabootargs video=mxcfb0:dev=lcd,800x480@60,if=RGB666,bpp=32

then, after having booted Linux, do:

root@apf6 ~ # fbset > /etc/fb.modes

• Activating HDMI console with USB keyboard in U-Boot (since armadeus-6.0):

BIOS> usb start
BIOS> setenv stdout serial,vga
BIOS> setenv stderr serial,vga
BIOS> setenv stdin serial,usbkbd

keyboard map is english one and it seems not possible to change it (U-Boot 2014.07) ?

• Use APF6Dev "User" LED in U-Boot scripts:

If you have a recent U-Boot, supporting gpio command:

BIOS> gpio set 204
...
BIOS> gpio clear 204

Otherwise, you can do it 'the old way'; declare GPIO Port 7 Pin 12 (connected to the LED) as GPIO:

BIOS> md.l 0x020b4004 1
020b4004: 00000100
BIOS> mw.l 0x020b4004 0x00001100    (set bit 12)

Switch LED on:

BIOS> md.l 0x020b4000 1
020b4000: 00000f04
BIOS> mw.l 0x020b4000 0x00001f04    (set bit 12)

Switch LED off:

BIOS> mw.l 0x020b4000 0x00000f04    (clear bit 12)

• Use APF6Dev "User" Button (GPIO Port 1 Pin 9) in U-Boot scripts:

If you have a recent U-Boot, supporting gpio command:

BIOS> setenv user_button 'gpio input 204'
BIOS> if run user_button; then echo "Button pressed"; fi
gpio: pin 9 (gpio 9) value is 0       (if pressed)
Button pressed

Otherwise, you can do it 'the old way':

BIOS> setenv user_button 'setexpr.l toto *0x0209c000 \\& 0x200; if itest ${toto} -eq 0; then true; else false; fi'
BIOS> if run user_button; then echo "Button pressed"; fi

• Detect USB OTG cable presence:

BIOS> setenv usb_cable 'setexpr.l toto *0x020c81c0 \\& 0xf; if itest ${toto} -eq 0xe; then echo "USB detected"; true; else false; fi'
BIOS> if run usb_cable; then echo "USB detected"; fi

Linux

• to activate login in Framebuffer console, please uncomment /etc/inittab line 35 this way:

# Set up a getty on LCD
tty1::respawn:/sbin/getty 38400 tty1