Here is a list of examples on how to wire components, power supplies, connectors, sensors, etc to the CM-SAMA5D3x to create your own Linux embedded board. Click on the image of the device you want to add.
If you want to get more details, you can see the schematic file of the base board.
- Power supply
CM-SAMA5D34 needs a single line 3.3 volt DC power supply which can be provided in any combination on the following pins:
Signal Name
|
Type
|
Pin #
|
Description
|
VDD33V_IN
|
Power
|
J3-Pin59, J3-P60
|
Main power supply. Typical voltage 3.3V.
|
GND
|
Power
|
J2-Pin1, Pin33, Pin59
J3-Pin2, Pin25
|
Common ground.
|

|
- Reset schematic
NRST is the Board reset Pin, low voltage can enable the Reset.
Signal Name
|
Type
|
Pin #
|
Description
|
NRST
|
I
|
J1-Pin18
|
Low voltage can enable the Reset
|
|
- RTC Backup battery
Applying 3 Volt DC on J3-Pin2(GND) and J3-Pin58 (VBAT +3VDC) it is possible to mantaint the RTC (Real Time Clock) active when the power supply if off. This will mantain the system clock up to 6 months with no power using a small CR2032 Lithium battery.
A bigger battery can be used to extend the time duration.
Signal Name
|
Type
|
Pin #
|
Description
|
VSBAT
|
Power
|
J3-Pin58
|
RTC Power In
|
GND
|
Power
|
J3-Pin2
|
Common ground.
|

|
- SD Card and TF card
CM-SAMA5D34 can expand 1 SDIO interface, it support SD card or TF card.
Name
|
Function
|
Pin #
|
Type
|
Description
|
PD9
|
MCI0_CK
|
J3-Pin51
|
I/O
|
Multimedia Card Clock
|
PD0
|
MCI0_CDA
|
J3-Pin45
|
I/O
|
Multimedia Card Slot Command
|
PD1
|
MCI0_DA0
|
J3-Pin47
|
I/O
|
Multimedia Card 0 Slot A Data
|
PD2
|
MCI0_DA1
|
J3-Pin49
|
I/O
|
Multimedia Card 0 Slot A Data
|
PD3
|
MCI0_DA2
|
J3-Pin46
|
I/O
|
Multimedia Card 0 Slot A Data
|
PD4
|
MCI0_DA3
|
J3-Pin48
|
I/O
|
Multimedia Card 0 Slot A Data
|
PB12
|
SW2
|
J3-Pin53
|
I/O
|
TF card Probe
|

|
- Serial Port(RS232,RS485)
CM-SAMA5D34 can expand 5 Serial port, one is Debug serial, and the others is four 5-wire serial port。
Name
|
Function
|
Pin #
|
Type
|
Description
|
Debug Unit - DBGU
|
PB31
|
DTXD
|
J3-Pin24
|
O
|
Debug Transmit Data
|
PB30
|
DRXD
|
J3-Pin26
|
I
|
Debug Receive Data
|
USART-0
|
PD17
|
RXD0
|
J3-Pin52
|
I
|
USART serial data in
|
PD18
|
TXD0
|
J3-Pin12
|
O
|
USART serial data out
|
PD16
|
RTS0
|
J2-Pin60
|
I
|
USART request to send
|
PD15
|
CTS0
|
J3-Pin14
|
O
|
USART clear to send
|
USART-1
|
PB28
|
RXD1
|
J3-Pin18
|
I
|
UART serial data in
|
PB29
|
TXD1
|
J3-Pin16
|
O
|
UART serial data out
|
PB27
|
RTS1
|
J3-Pin20
|
I
|
UART request to send
|
PB26
|
CTS1
|
J3-Pin22
|
O
|
UART clear to send
|
USART-2
|
PE25
|
RXD2
|
J3-Pin11
|
I
|
UART serial data in
|
PE26
|
TXD2
|
J3-Pin9
|
O
|
UART serial data out
|
PE24
|
RTS2
|
J3-Pin13
|
I
|
UART request to send
|
PE23
|
CTS2
|
J3-Pin15
|
O
|
UART clear to send
|
USART-3
|
PE18
|
RXD3
|
J3-Pin19
|
I
|
UART serial data in
|
PE19
|
TXD3
|
J3-Pin17
|
O
|
UART serial data out
|
PE17
|
RTS3
|
J3-Pin21
|
I
|
UART request to send
|
PE16
|
CTS3
|
J3-Pin23
|
O
|
UART clear to send
|
 
|
- CAN Bus
CM-SAMA5D34 have one CAN interface, the pins define is as follow:
Name
|
Function
|
Pin #
|
Type
|
Description
|
PB14
|
CANRX1
|
J3-Pin27
|
I
|
CAN input
|
PB15
|
CANTX1
|
J3-Pin29
|
O
|
CAN output
|
ABout the CAN schematic, it use the ADUM1206 chips

|
- Audio
CM-SAMA5D34 have the SSC signal, it can expand the Audio chips.
Name
|
Function
|
Pin #
|
Type
|
Description
|
PA30
|
IIC
|
J2-Pin47
|
I/O
|
IIC configure
|
PA31
|
IIC
|
J2-Pin49
|
I/O
|
IIC configure
|
PC17
|
TF
|
J2_Pin51
|
I/O
|
SSC Transmit Frame Sync
|
PC21
|
RD
|
J2_Pin53
|
I
|
SSC Receive Data
|
PC18
|
TD
|
J2_Pin55
|
O
|
SSC Transmit Data
|
PE31
|
INT
|
J2_Pin57
|
I/O
|
|
PD30
|
PCK0
|
J2_Pin52
|
O
|
|
PC16
|
TK
|
J2_Pin54
|
I/O
|
SSC Transmit Clock
|
PC19
|
RK
|
J2_Pin56
|
I/O
|
SSC Receive Clock
|
PC20
|
RF
|
J2_Pin58
|
I/O
|
SSC Receive Frame Sync
|
We advise you to use the WM8904 Audio chips, the details was in the IPC-SAMA5D34 schematic.

|
- USB Host/Device
CM-SAMA5D34 can expand 3 USB, contain two USB Host, one USB device.
Function
|
Pin #
|
Type
|
Description
|
Modle
|
USB Host/Device A
|
HHSDMA/DHSDP
|
J3-Pin39
|
A
|
High Speed
|
Host/device
|
HHSDPA/DHSDM
|
J3-Pin40
|
A
|
High Speed
|
USB Host B
|
HHSDMB
|
J3-Pin37
|
A
|
High Speed
|
Host
|
HHSDPB
|
J3-Pin38
|
A
|
High Speed
|
USB Host C
|
HHSDPC
|
J3-Pin35
|
A
|
Full Speed
|
Host
|
HHSDMC
|
J3-Pin36
|
A
|
Full Speed
|
USB A can expand USB Host or USB Device。USB B and C can expand USB Host function.

|
- LCD interface
CM-SAMA5D34 have one TFT lcd interface.

|
- Touchscreen interface
CM-SAMA5D34 can expand one touchscreen interface.
Name
|
Function
|
Pin #
|
Type
|
Description
|
PD20
|
X+
|
J2-Pin42
|
AI
|
Touch screen X+ (right)
|
PD21
|
X-
|
J2-Pin43
|
AI
|
Touch screen X- (left)
|
PD22
|
Y+
|
J2-Pin41
|
AI
|
Touch screen Y+ (top)
|
PD23
|
Y-
|
J2-Pin45
|
AI
|
Touch screen Y- (bottom
|

|
- GPIO
CM-SAMA5D34 contain more IO interface, advise the 16 GPIO for user.

|
- 1000M ethernet interface
CM-SAMA5D34 have the 1000M Ethernet chips, you can connect it to RJ45 ethernet connector (with embedded line tranformers).

|
- SPI1&TWI1&TWI0
CM-SAMA5D34 have one SPI interface and two TWI interface.

|
- Reserver
- Reserver
Notice, all the interface support 3.3V
|