MINI6935 CPU Core Board
Atmel AT91SAM9X35 Powered CPU Core Module
BY
Product Overview
Version 1.0
Dated: 3rd December 2013
Re v ision Histor y:
Version Date Description
1.0
03/12/2013
Original Version
Table of Contents
1 Produc t Overview .................................................. 1
1.1 Introduction ............................................................. 1
1.2 Kit Content s ............................................................. 1
1.3 Board Int erf aces ....................................................... 2
1.4 Syste m Block Diagram ............................................... 3
1.5 Physica l Dimens ions (mm) ......................................... 4
2 Hardware Features ................................................ 5
2.1 Processor ................................................................. 5
2.1.1 Core ................................................................... 5
2.1.2 Memory .............................................................. 5
2.1.3 Peripherals .......................................................... 5
2.1.4 Other ................................................................. 6
2.2 On-Board M e mory ..................................................... 6
2.3 On-Board Interfaces .................................................. 6
2.4 Operational Parameters.............................................. 7
3 Hardware Interfaces .............................................. 8
3.1 U63 Interface ........................................................... 8
3.2 U64 Interface ........................................................... 9
3.3 NAND F la sh Interface (U43) ..................................... 10
3.4 SPI Flash Interface (MN7) ........................................ 11
3.5 EEPROM Interfaces (MN8) ........................................ 11
4 Software Features ............................................... 12
4.1 System Fea t ur es ..................................................... 12
4.2 BSP Packages ......................................................... 12
4.3 Development Environment ....................................... 13
4.4 Kernel Customization ............................................... 14
4.5 Fil esystem Customization ......................................... 15
Page | 1
1 Product Overview
1.1 Introduction
The MINI6935 is compact y et powerful embedded core module built on the
Atmel AT91SAM9X35, a 32bit ARM 926EJ-S™ microcontroller. By utilising a
compatible expansion board users can quickly add extra functionality
allowing dramatically reduced design time.
Despite the MINI6935’s small size it manages to squeeze in 128MB of DDR2
SDRAM , 256M B of NAND Flash a nd 4MB of DataFlash, as well as abundant
interfaces which may be further expanded with a compatible expansion
board. The MINI6359 also features:
Support for the Linux2.6.39 operating system
Support for custom GUI’s created via Linux QT
Support for multiple file systems such as ROM, CRAM, EXT2, EXT3,
FAT, NFS, JFFS2, YAFFS2, UBIFS
1.2 Kit Contents
MINI6935 Core Board×1
CD-ROM×1
Optional
Expansion Board (EDM6070-01 or EDM6070R-01)
Page | 2
1.3 Board Interfaces
Figure 1: MIN I693 5 CPU M o dul e Interfa ces
Page | 3
1.4 System Block Diagram
Figure 2: S yst em Block Diag ra m
Page | 4
1.5 Physical Dimensio ns (mm)
Figure 3: Expansion Boar d Dim en sions
Page | 5
2 Hardware Features
2.1 Processor
2.1.1 Core
Atmel AT91SAM9X35 32 bit processor running at up to 400 MHz
16KB data cache, 16KB instruction cache, memory management
unit
2.1.2 Memory
64KB internal ROM and 32KB internal SRAM
High bandwidth m ulti-port DDR2 controller
32 bit external bus interface support ing 8-bank DDR2 memory and
static memory
MLC /SLC NAND controller, with up to 24-bit Programmable Multi-bit
Error Correcting Code (PMECC)
2.1.3 Peripherals
LCD controller supporting resoluti on of up to 800x600
High speed USB device & host
Full speed USB h ost wi th dedicated on-chi p transce ive r
10/100 Mbps Ethernet MAC controller
Watchdog
Two high speed memory card hosts
Two CAN con t rollers
Two S P I interfaces
Page | 6
6 channel 32 bit timers/counters
SSC controller (I2S)
4 channel 16-bit PWM controller
Thr ee I2C inter fa c es
Three USARTs, two UARTs
12 channel 10 bit ADC (for touchscreen)
Software modem
2.1.4 Other
I/O: Four 32-bit GPIOs, of which 105 programmable I/O lines are
multiplex ed with up to three per ip h era l I/Os
Package: Surface-mount, 217 ball BGA with 0.8mm pitch
2.2 On-Board Memory
256MB NAND Flash
128MB SDRAM
4Kb EEPROM
4MB SPI Flash
2.3 On-Board Interfaces
U63 Interface
U64 Interface
NAND Flas h Inter fa c e (U43)
SP I Flash Inter fa ce (MN7 )
EEPROM Interfaces (MN8)
Page | 7
2.4 Operational Parameters
Operating Temperature: -10 °C ~ 70 °C
Oper ating Humidity: 0% ~ 90% (Non-condensing)
Power Supply: 3.3V, 1.25A
Electrical Standards: CE, FCC and CCC
PCB Layers: 6
Product Dimensions: 64mmx45mm
Page | 8
3 Hardware Interfaces
3.1 U63 Interface
Pins Names Functions
Pins Names Functions
1 GND GND 2 GND GND
3 PB11 Touch Screen
X+ 4 PB12 Touch S creen X-
5 PB13 Touch Screen Y+ 6 PB14 Touch Screen Y-
7 PB15 Isolate
ISO_INPUT1 8 PB16 USB VBU S
9 PB17 BUZZER 10 PB18 GPIO for blue led
11 GND GND 12 GND GND
13 PC0 LCD B0 14 PC1 LCD B1
15 PC2 LCD B2 16 PC3 LCD B3
17 PC4 LCD B4 18 PC5 LCD B5
19 PC7 LCD B7 20 PC6 LCD B6
21 PC9 LCD G1 22 PC8 LCD G0
23 PC11 LCD G3 24 PC10 LCD G2
25 PC12 LCD G4 26 PC13 LCD G5
27 PC14 LCD G6 28 PC15 LCD G7
29 PC17 LCD R1 30 PC16 LCD R0
31 PC19 LCD R3 32 PC18 LCD R2
33 PC21 LCD R5 34 PC20 LCD R4
35 PC22 LCD R6 36 PC23 LCD R7
37 PC24 LCDDISP 38 PC25 PWR_EN
39 PC26 LCDPWM 40 PC27 VSYNC
41 PC29 LCDDEN 42 PC28 HSYNC
43 PC31 Audio XTI/MCLK 44 PC30 LCDPCK
45 GND GND 46 GND GND
47 PA0 TXD0 48 PA1 RXD0
49 PA2 RTS0 50 PA3 NULL
51 PA4 SW1 USER 1 52 PA6 CANRX1
53 PA5 CANTX1 54 PA7 TXD2
55 PA8 RXD2 56 PA9 DRXD
57 PA10 DTXD 58 PA11 SPI0_MISO
59 PB0 ERX0 60 PA13 SPI0_SPCK
61 PB2 ERXER 62 PA14 SPI0_NPCS0
63 PB4 ETXCK 64 PA12 SPI0_MOSI
65 PB6 EMDC 66 PB1 ERX1
67 PB8 EMDINTR 68 PB3 ERXDV
Page | 9
Pins Names Functions Pins Names Functions
69 PB9 ETX0 70 PB5 EMDIO
71 GND GND 72 PB7 ETXEN
73 ETH0_TX- DM9161
ETH0_TX- 74 PB10 ETX1
75 ETH0_TX+ DM9161
ETH0_TX+ 76 AVDDT DM9161 output
voltage 1.8V
77 ETH0_RX- DM9161
ETH0_RX- 78 ACT D M9161 ACT
79 ETH0_RX+ DM9161
ETH0_RX+ 80 ACT->LINK D M9161 LINK
3.2 U64 Interface
Pins Names Functions
Pins Names Functions
1 GND GND 2 GND GND
3 4
5 6
7 8 VDDBU VDDBU
9 10 JTAGSEL NULL
11 12 WKUP NULL
13 14 SHDN NULL
15 PD14 SD WP Active 16
17 PD16 Isolate
ISO_INPUT2 18 PD17 Isolate
ISO_INPUT3
19 PD18 Isolat e IO_OUT1 20 PD19 Isolate IO_OUT2
21 PD20 Isolat e IO_OUT3 22 PD21 Isolate IO_OUT4
23 24 GND GND
25 GND GND 26 GND GND
27 HHSDMA HHSDMA 28 HHSDMB HHSDMB
29 HHSDPA HHSDPA 30 HHSDPM HHSDPM
31 GND GND 32 GND GND
33 GND GND 34 GND GND
35 DIBN NULL 36 HHSDPC NULL
37 DIBP NULL 38 HHSDMC NULL
39 GND GND 40 GND GND
41 GND GND 42 NRST NRST
43 TMS NULL 44 NTRST NULL
45 TDO NULL 46 TDI NULL
47 RTCK NULL 48 TCK NULL
49 50
51 GND GND 52 GND GND
Page | 10
Pins Names Functions Pins Names Functions
53 PA21 NULL
(SPI1_MISO) 54 PA23 NULL(SPI1_MOSI)
55 PA22 NULL
(SPI1_SPCK) 56 PA24 AUDIO BCLK
57 PA25 AUDIO DACLRC 58 PA26 AUDIO DACDAT
59 PA27 AUDIO ADCDA T 60 PA28 AUDIO BCLK
61 PA29 AUDIO AD CLRC 62 PA30 AUDIO SDIN
63 PA31 AUDIO SCLK 64 GND GND
65 GND GND 66 PA15 SD TF_DAT0
67 PA16 SD DCMD 68 PA17 SD CLK
69 PA18 SD TF_DAT1 70 PA19 SD TF_DAT2
71 PA20 SD CD/DAT3 72 PD15 SD Detect Active
73 GND GND 74 GND GND
75 GND GND 76 GND GND
77 VDD33_IN VDD33V in put 78 VDD33_IN VDD33V input
79 VDD33_IN VDD33V in put 80 VDD33_IN VDD33V input
3.3 NAND Flash Interface (U43)
Pins Names Functions
7 PD5 RD/BY
8 PD0 RE
9 PD4 CE
12 VDD33V +3.3V power
13 GND GND
16 PD3 CLE
17 PD2 ALE
18 PD1 WE
29 NADN_D0 D0
30 NADN_D1 D1
31 NADN_D2 D2
32 NADN_D3 D3
36 GND GND
37 VDD33V +3.3V power
38 GND GND
41 NADN_D4 D4
42 NADN_D5 D5
43 NADN_D6 D6
44 NADN_D7 D7
Page | 11
3.4 SPI Flash Interface (MN7)
Pins Names Functions
1 PA14 Slav e Select f or SSP0
2 PA11 Mas ter In Slave Out f or SSP0
3 VDDIOP0 +3.3V power
4 GND GND
5 PA12 Mas ter Out Slave In f or SSP0
6 PA13 Serial clock for SSP0
7 VDDIOP0 +3.3V power
8 VDDIOP0 +3.3V power
3.5 EEPROM Interfaces (MN8)
Pins Names Functions
1 VDDIOP0 +3.3V power
2 GND GND
3 GND GND
4 GND GND
5 PA30 SDA
6 PA31 SCL
7 GND GND
8 VDDIOP0 +3.3V power
Page | 12
4 Software Features
4.1 System Features
Supports Linux 6.39
Supports Linux QT GUI
Supports multiple file systems incl udin g: ROM, CRAM, EXT2, EXT3,
FAT, NFS, JFFS2, YAFFS2, and UBIFS
This chapter will briefly introduce the BSP package on the included CD-ROM.
4.2 BSP Packages
Types Names Descriptions
BIOS
Bootstrap Serial Flash
U-Boot
Serial Flash
Supports kernel and file system programming t hr ough
SAM-BA or USB flash drive (USB flash drive is recomm ended)
Kernel Linux-2.6.39 ROM/CRAM/EXT2/EXT3/FAT/NFS/JFFS2/YAFFS2/UBIFS
file systems
Device
Drivers
RTC Internal RTC of A T91SAM9X35
Ethernet 10/100M Ethernet driver
Flash NAND Flash and DataFlash dr iver
LCD LCD driver, 800x480 resolution
Touch S creen Touchscreen control l er on CP U
USB Ho st USB Ho st driver
Watchdog Built-in watchdog driver
SD Card SD card driver
CAN Bus 1 CAN bus
LED 1 sy stem status LED
Button 1 custom user button driv er
GPIO GPIO driver, 3 i n put channels, 4 output chan nels
Root File
System UBIFS
Readable a n d wr it eabl e file system, supp o r tin g compres sion
storage
Page | 13
4.3 Development Environment
The CD pro vided wit h the board contains an ARM Linu x cross compiler:
“arm-2007q1-10-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz
2” under \02 Linux2.6 kit\02 tools\. Please foll ow the steps below to
install the cross compiler
1） The Ubuntu system should automatically mount the CD u nder
/media/cdrom. Please execute the following commands to begin
installation:
mkdi r /usr /loc al/a rm
tar –jxvf
arm-2007q1-10-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
–C/usr/local/arm
2） Execute the following instructions to add an environment variable
which specifies the path to the cross-compiler in the system and
check if it has been added successfully;
exp or t PA TH =/usr/local/ ar m/ ar m-2007q1/bin/:$PATH
arm-none-linux-gnueabi-gcc –v
The system prints fe edback as shown below;
Using built-i n sp ec s.
Target: arm-none-linux-gnueabi
…
gcc version 4.2.0 20070413 (prerelease) (CodeSourcery Sourcery G++ Lite 2007q1-10)
If the version information contained in the last line is consistent, this
indicates the installation has been completed successfully.
Note:
The instruction adding environment variables can be put into the file .bashrc
under user directory to allow the system load the variable automatically each
time on boot up.
Page | 14
4.4 Kernel Customization
By default, the kernel source code provides a configuration file
“at91sam9x5ek_defconfig” saved under arch/arm/configs/. Please
ex ecute the following instructions to ente r the configuration menu and then
select the drivers you need according to the entries shown in the table
below.
root@LINUXSERVER:~/embest/linux-2.6.30# mak e at9 1s am9x5ek_defc on fi g
root@LINUXSERVER:~/embest/linux-2.6.30# mak e men uc onfig
Drivers Paths
Serial
Interface
Device drivers > Character devices > Serial drivers > AT91 / AT32 on-chip
serial p ort s upport
Buttons Dev i ce dri v er s > In pu t d evi ce support > Keybo ards > G PIO Buttons
GPIO Device drivers > Mis c devices > Dev i ce dri ve r for At m el GP IO dev ic es
LED Device drivers > LED Support > LED Class Support > LE D Supp or t for
GPIO connect ed LEDs
SD/MMC Devi ce driver s > MMC/SD / S DIO car d su pport > M MC block device
driver > Atmel SD/MMC Driver (Atmel Multimedia Card Interface support)
USB
Device drivers > USB support > Suppor t f or Host-side USB > EHCI HCD
(USB 2.0) support > OHCI HCD support > USB Mass Storage supportHCD
support > USB Mass Storage support
RTC Device drivers > Real Time Clock > AT91RM9200 or some AT91SAM9 RTC
Watchdog Device driver s > Watchdog Timer S upport > A T91SAM9 watchdog
CAN Bus Networking support > CAN bus su bsys tem su p port > CAN Device
Drivers > Atmel AT91 onchip CAN controller
MACB Dev ic e dri vers > Network device support > Eth ernet(10 or 100Mbit) >
Atmel MACB support
Graphics D evi ce dri v er s > G r a phics su pp ort > Support for frame buffer devices >
AT91/AT32 LCD Controller support
Touch-Screen Inpu t d evi ce su ppo r t > Touchscreens > Atmel Touchscreen Interface
Save the changes and execute the instruction below to compile the
customized kernel
Page | 15
root@LINUXSERVER:~/embest/linux-2.6.24# make uImage
4.5 File System Customizatio n
Configuration List Paths Notes
Driver Modules /lib/modules/2.6.39/ Stor e driv er mo dule ko
Driv er Mo dule Mounti ng /etc/init.d/S50modules
Network Address /etc/network/interfaces.eth0
Command Line Prompt
Name /etc/hostname
User Progra m Auto Running
/etc/init.d/S60evnset Add it to the en d of file
Environ ment V ariables /etc/profile
Touch-
Screen Coordinate
Files /etc/pointercal
udev Rules /etc/udev
LCD Backlig ht Bri ghtn ess /etc/bl_adjust.conf
User Testing Applications /home/app
