AMD Zynq 7000 - BORA SOM

The hardware documentation of BORA SOM based on Xilinx Zynq XC7Z007, XC7Z010 or XC7Z020 is available on wiki. You can also download a PDF version.

Before run petalinux-build, please perform the following command

ssh -T git@git.dave.eu

We assume that:

• Xilinx Vivado 2021.2 is installed into /opt/Xilinx/2021.2 directory
• Xilinx Petalinux 2021.2 is installed into /opt/Xilinx/petalinux/2021.2 directory
• Ubuntu 20.04 is used as build host

For more information about setup of host machine for build Petalinux, Vivado and Vitis, please see DESK-XZ7-L-AN-0001

Yes. ConfigID is a new feature of DAVE Embedded Systems products. Its main purpose is providing an automatic mechanism for the identification of the product model and configuration. In simple words, model identification means the capability of reading a numerical code, stored in an available device (SOC's OTP , I2C EEPROM, 1-wire memories, protected NOR flash, etc.)

With ConfigID, we aim at completing the hardware configuration information that the software can't normally auto-detect (i.e. RAM chip version,...), implementing a dedicated reliable detect procedure and, when required, overriding the auto-detected hardware configuration information.

An additional attribute is UniqueID, which is a read-only code which univocally identifies a single product and is used for traceability.

For more information about DESK-XZ7-L (Software Development Kit for BORA SOM) ConfigID and UniqueID, see this page.

BORA family uses the first 32bytes OTP block on NOR SPI to store ConfigID (and its CRC32), UniqueID (and its CRC32). U-Boot integrates the software routines for reading and displaying the ConfigID.

Generally speaking, SOM ConfigID is used to identify the configuration of the basic features of the SOM and CB ConfigID is used to identify the peripherals and the I/O interfaces.

Please visit this page for more detailed information.

Yes, you can. This configuration is very helpful during software development (both for kernel and applications). The kernel image is downloaded via TFTP while the root file system is remotely mounted via NFS from the host. It is assumed that the development host:

• is connected with the target host board through an ethernet LAN
• exports the directory containing the root file system for the target through the NFS server
• runs a TFTP server
• has a proper subnet IP address

DESK-XZ7-L Virtual Machine is properly configured for the TFTP and NFS debug.

In any case, some variables have to be configured on the target and the VM itself has to be configured with respect to the network environment.

Please visit this page for more detailed information about the Virtual Machine and target configuration or the booting via NFS with PXE protocol and Petalinux.

In DESK-XZ7-L (Software Development Kit per BORA SOM) there are two main repositories to:

• track and reproduce hardware design with Vivado
• track and reproduce Petalinux/Yocto build

Additional repositories will be used to track other piece of software that requires customization (e.g. U-Boot bootloader, Linux kernel, sample application and so on)

Access to DAVE Embedded Systems' git repositories is granted to the development kit's owners only. Please refer to our video tutorial How to access DAVE Embedded Systems' git repositories for detailed instructions on how to get access.

Please visit this page for further information on how to keep the source trees in sync and up to date with DAVE Embedded Systems’ git repositories.

Visit this page for further information about how to create and build the Vivado project in DESK-XZ7-L (Software Development Kit for BORA SOM).

The Vivado repository allows to:

• track hardware/fpga related sources/configuration
• reproduce hardware design output (FPGA bitstream, XSA) using TCL scripts

Visit this page for further information about how to create and build the Petalinux project in DESK-XZ7-L (Software Development Kit for BORA SOM).

See this page for further information on how to create a bootable microSD for the DESK-XZ7-L kit by writing the WIC file of interest generated by Petalinux onto the SD card.

In this video tutorial we guide you step by step in creating a bootable SD card from scratch.

Yes. On this page you can find an example on C code displaying the classic Hello World! message on the target serial console. This example shows how to use the arm cross-compiler using the environment configured for this purpose.

On this page you can find how to program and configure a SOM to boot in standalone mode, without the need of a system microSD card or an NFS server.

The page contains general concepts that can be adapted on any DAVE Embedded Systems' Linux platform.

Please refer to our video tutorial How to program the NAND flash for a standalone boot for detailed instructions on how to do it.

For deploying an Embedded System, one of the most important configuration is the Network Interface configuration.

Once the Embedded Device is finally configured for stand-alone bootstrap, the network interface should be configured for reaching the device remotely via network connections like ssh, telnet, ftp, http, etc.

Visit this page for further information on how to simply configure the network interface or watch our tutorial How to configure the network interface.

DESK-XZ7-L (Software Development Kit for BORA SOM) provides the following peripherals:

You can download BORA SOM brochure by clicking here.

To get a quote you can contact DAVE Embedded Systems by clicking here.

BORA is a top-class Single and Dual Cortex-A9 + FPGA CPU module based on Xilinx "Zynq" XC7Z007S / XC7Z014S / XC7Z010 / XC7Z020 application processor.

The Zynq™-7000 family is based on the Xilinx Extensible Processing Platform (EPP) architecture. These products integrate a feature-rich dual-core ARM® Cortex™-A9 based processing system (PS) and 28 nm Xilinx programmable logic (PL) in a single device. The ARM Cortex-A9 CPUs are the heart of the PS and also include on-chip memory, external memory interfaces, and a rich set of peripheral connectivity interfaces. The Zynq-7000 family offers the flexibility and scalability of an FPGA, while providing performance, power, and ease of use typically associated with ASIC and ASSPs. The range of devices in the Zynq-7000 AP SoC family enables designers to target cost-sensitive as well as high-performance applications from a single platform using industry-standard tools. While each device in the Zynq-7000 family contains the same PS, the PL and I/O resources vary between the devices. As a result, the Zynq-7000 AP SoC devices are able to serve a wide range of applications including:

• Automotive driver assistance, driver information, and infotainment
• Broadcast camera
• Industrial motor control, industrial networking, and machine vision
• IP and Smart camera
• LTE radio and baseband
• Medical diagnostics and imaging
• Multifunction printers
• Video and night vision equipment

The processors in the PS always boot first, allowing a software centric approach for PL system boot and PL configuration. The PL can be configured as part of the boot process or configured at some point in the future. Additionally, the PL can be completely reconfigured or used with partial, dynamic reconfiguration (PR). PR allows configuration of a portion of the PL. This enables optional design changes such as updating coefficients or time-multiplexing of the PL resources by swapping in new algorithms as needed.

BORA can mount two versions of the Zynq processor. On this page you can find the table of the comparison between the processor models.

The use of this processor enables extensive system-level differentiation of new applications in many industry fields where high-performance and extremely compact form factor (85mm x 50mm) are key factors.

Yes. BORA Evaluation Kit is the official support platform for evaluation the BORA SOM. It includes a SOM and all the necessary for the fast and easy evaluation.

Here you can find the video of the unboxing of the BORA SOM Evaluation Kit that shows you how the Evaluation Kit is composed and how to unbox and connect it to your development platform.

BORA allows customers to save time and resources by using a compact solution (85mm x 50mm) that includes both a CPU and an FPGA, avoiding complexities on the carrier PCB. Smarter system designs are made possible, following the trends in functionalities and interface of the new, state-of-the-art embedded products.

BORA offers great computational power thanks to the rich set of peripherals, the Dual Cortex-A9 and the Artix-7 FPGA together with a large set of high-speed I/Os (up to 5GHz).

BORA enables designers to create rugged products suitable for harsh mechanical and thermal environments, allowing for the development of the most advanced and robust products.

On this page you can find BORA SOM 3D model.

On this page you can find BORA SOM block diagram.

On this page you can find BORA SOM hardware manual.

On this page you can find all the BORA SOM marketing documentation available.

BORA SOM module part number is identified by the digit-code table that you can find here.

Yes, we have our Longevity Program based on Silicon Vendors' Longevity Program. For BORA SOM see this page.

DAVE Embedded Systems' goal is to grant the production continuity to its customer including the possibility to redesign its products in order to maintain the product continuity.

If you want to request support to our technical team please fill this form. After the submission, a ticket will be assigned. Our technicians will look after your request and, typically, they will respond you via email within 24 hours from the request.

DAVE Embedded Systems provides a very efficient technical support via a helpdesk ticketing system. In this video we show you all the ways you can get help from us: How to contact DAVE technical support.

Here you can find the DAVE Embedded Systems' Return Material Authorization form.

Yes. You can download a PDF version of BORA SOM hardware manual by clicking here.

To download the technical documentation you will need to register on the DAVE Embedded Systems Wiki site. You can find the video tutorial with the guided procedure by clicking here: How to register to the DAVE Embedded Systems website.

BORA SOM’s processor and memory subsystem are composed by the following components:

• Xilinx Zynq Z-7010 (XC7Z010) / Z-7020 (XC7Z020) SoC
• Power supply unit
• DDR memory banks
• NOR and NAND flash banks
• 3x 140 pin connectors with interfaces signals

For further information, see this page.

Yes. The PCB version is copper printed on PCB itself and the serial number is printed on a white label (please see here for further information).
Also, a ConfigID is used by software running on the board for the identification of the product model/hardware configuration. Refer to this link for more details.

Here you can find the connectors and pinout description of the BORA SOM.

• Processing System (PS)
• Programmable logic (FPGA)
• Ethernet
• SDIO
• SPI
• NAND
• CAN
• I2C
• UART
• USB
• EEPROM
• Real Time Clock
• Watchdog
• Thermal IC

Implementing correct power-up sequence for Zynq-based system is not a trivial task because several power rails are involved. BORA SOM simplifies this task by embedding all the needed circuitry. Here you can find a simplified block diagram of PSU/voltage monitoring circuitry.

The recommended power-up sequence is:

1. main power supply rail (3.3VIN) ramps up
2. carrier board circuitry raises CB_PWR_GOOD; this indicates 3.3VIN rail is stable (1)
3. Bora's PSU enables and sequences DC/DC regulators to turn circuitry on
4. BOARD_PGOOD signal is raised; this active-high signal indicates that SoM's I/O is powered. This signal can be used to manage carrier board power up sequence in order to prevent back powering (from SoM to carrier board or vice versa).

For further information, see this page.

Here you can find a block diagram of reset scheme and voltage monitoring.

Here you can find information about the Programmable Logic (PL) initialization signals: PROGRAM_B, INIT_B, and DONE.

The boot process begins at Power On Reset (POR) where the hardware reset logic forces the ARM core to begin execution starting from the on-chip boot ROM. The boot process is multi-stage and minimally includes the Boot ROM and the first-stage boot loader (FSBL). The Zynq-7000 AP SoC includes a factory-programmed Boot ROM that is not useraccessible.

The boot ROM:

• determines whether the boot is secure or non-secure
• performs some initialization of the system and cleanups
• reads the mode pins to determine the primary boot device
• once it is satisfied, it executes the FSBL

After a system reset, the system automatically sequences to initialize the system and process the first stage boot loader from the selected external boot device. The process enables the user to configure the AP SoC platform as needed, including the PS and the PL. Optionally, the JTAG interface can be enabled to give the design engineer access to the PS and the PL for test and debug purposes.

For further information about BORA SOM boot options, please check out more by clicking here.

The Zynq-7000 family of AP SoC devices provides debug access via a standard JTAG (IEEE 1149.1) debug interface.

Here you can find the table that reports the connector’s pinout.

For further information on how to use the JTAG interface, please contact the Technical Support Team.

Here you can find BORA SOM’s maximum ratings, recommended ratings and power consumption.

BORA product is designed to support the maximum available temperature range declared by the manufacturer. The customer shall define and conduct a reasonable number of tests and verification in order to qualify the DUT capabilities to manage the heat dissipation.

Any heatsink, fan etc shall be defined case by case depending on the various use conditions like: air cooling (forced or not), enclosure dimensions, mechanical/thermal coupling with heatsink. A proper thermal analysis must be investigated on the real use scenario which depends on FPGA design, frequency configurations, working signals, etc.

DAVE Embedded Systems' team is available for any additional information, please contact sales@dave.eu or check this page for further information.

Here you can find the mechanical characteristics of BORA SOM.

Yes. DESK-XZ7-L is the Embedded Software Kit for BORA SOM, BORA Xpress SOM and BORA Lite SOM.

DAVE Embedded Software Kit Linux (DESK-XZ7-L in short) - provides all the necessary components required to set up the developing environment to:

• build the Vivado project
• build the Petalinux operating system

The Embedded Software kit is composed by:

• git repositories access for registered users allowing the update of the following repo
  • Vivado
  • Petalinux
• SD card with the complete environment for
  • a complete Kit bootstrap and demonstration (with u-boot, kernel and root file systems binaries already configured)

Click here for further information about DESK-XZ7-L and here to download a PDF version of DESK-XZ7-L software manual.