Hardware Design introduce --- CM-SAMA5D34
Features Pin Define Hardware Develop Linux Develop

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 

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