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Run Hello World on a ZC702

Updated: Aug 27, 2019



This post shows how run Hello World on a Xilinx ZC702. It covers: creating a design in Vivado, exporting the design to the SDK and running Hello World on the dual-core ARM Cortex-A9 processor in the Zynq-7000.


Contains


Part I: Build a PS and Generate a Bitstream

Part II: Export Hardware Design and the Open SDK

Parr III: Set up the ZC702

Part IV: Set up the Terminal

Part V: Run HelloWorld

Part VI: Debug HelloWorld



Note


This write up follows the steps presented in Zynq-7000 All Programmable SoC: Embedded Design Tutorial and adds corrections, clarifications and additional information.



Versions

  • Vivado 2018.2 available @ [link] (install the free WebPACK edition)

  • Windows 7 SP1



Part I: Build a PS and Generate a Bitstream


Step 1: Start Vivado 2018.2

A. Click Start

B. Click Vivado 2018.2


Step 2: Click Create Project


Step 3: Click Next


Step 4:

A. Set Project name to helloworld (always use a name without spaces [moreinfo])

B. Set Project location to C:/vivadoprjs (keep paths less than 200 chars)

C. Check the Create project subdirectory checkbox

D. Click Next

Step 5:

A. Select the RTL Project radio button if its not selected

B. Check the Do not specify source at this time checkbox

C. Click Next


Step 6:

A. Click Boards

B. Type ZC702

C. Click the ZYNQ-7 ZC702 Evaluation Board

D. Click Next


Step 7: Click Finish

Text Listed, More Info and Links to Docs


New Project Summary


A new RTL project named 'helloworld' will be created.


The default part and product family for the new project:

Default Board: ZYNQ-7 ZC702 Evaluation Board

Default Part: xc7z020clg484-1 [speedgrade and part # decode (datasheet p.23)]

Product: Zynq-7000 [product page]

Family: Zynq-7000

Package: clg484 [Pinout Files & Packaging and Pinout p.79]

Speed Grade: -1


Step 8: Click Create Block Design


Step 9: Use defaults and click OK


Step 10: Click + to add IP (or Ctrl-I)


Step 11:

A. Type Zynq

B. Double click on ZYNQ7 Processing System

You'll see the Xilinx LogiCORE™ IP Processing System 7 core [doc]:

Interfaces:

M_AXI_GP0_ACLK (input, global clock, all signals sampled on rising edge of the global clock)

DDR

FIXED_IO

M_AXI_GP0

FCLK_CLK0 (output, fabric aka PL clock, clock for the PL)

FCLK_RESET0_N




Step 12: Click Run Block Automation


Step 13: Use defaults and click OK

You'll see:


Step 14: Connect the PL clock (FCLK_CLK0) to the global clock (M_AXI_GP0_ACLK)

A. Click and hold on FCLK_CLK0

B. Drag the connection to M_AXI_GP0_ACLK and release mouse button

You should see:

Step 15: Create an HDL Wrapper

A. Click Sources

B. Click Hierarchy

C. Right-click design_1 (design_1.bd)

D. Click Create HDL Wrapper...



Step 16:

A. Leave or select Let Vivado manage wrapper and auto-update

B. Click OK


Step 17:

A. Click to expand design_1_wrapper (design_1_wrapper.v)(1)

B. Right-click on design_1_i: design_1 (design_1.bd)(1)

C. Click Generate Output Products...


Step 18:

A. Leave selected or select Out of context per IP

B. Leave Number of jobs at 2

C. Click Generate



Step 19: Click OK and let the operation complete


Step 20: Click Run Synthesis


Step 21: Use the defaults and click OK

Wait for synth_design to complete


Step 22:

A. Leave selected or select Run Implementation

B. Click OK


Step 23: Use the defaults and click OK

Wait for the operation to complete:



Complete:


Step 23:

A. Select Generate Bitstream

B. Click OK


Step 24: Use the defaults and click OK

Wait for the operation to complete:

Complete:


Step 25: Click Cancel



Part II: Export Hardware Design and the Open SDK


Step 1:

A. Click File

B. Click Export

C. Click Export Hardware


Step 2:

A. Click the Include bitstream checkbox

B. Leave <Local to Project>

C. Click OK

Step 3:

A. Click File

B. Click Launch SDK


Step 4: Use defaults and click OK


Step 5:

A. Click File

B. Click Application Project

Step 6:

A. Type HelloWorld for Project name

B. See HelloWorld_bsp autopopulate

C. Click Next


Step 7:

A. Ensure Hello World is selected (it should be)

B. Click Finish

You should see:


Part III: Set up the ZC702


Step 1: Set SW16 to JTAG mode [mode documentation see p.16]

For the rest of the jumpers see the high-resolution photo of the board in the correct state at [link].



Step 2: Connect a Micro-B to Type-A (host connection) USB cable from U23 (Diglent USB JTAG interface) to the host PC


U23:

Micro-B connector:

Type-A connector:



Step 3: Connect a Mini-B to Type-A (host connection) USB cable from J17 (CP2103GM USB-to_UART Bridge) to the host PC.


J17:

Mini-B connector:

Type-A connector:


Step 4: Power on the board (you'll need to power on the board to see the USB-to-UART device in the next step).



Part IV: Set up the Terminal


Step 1: Install the Silicon Labs CP210x USB to UART Bridge VCP Drivers

A. Goto [link]

B. Download and unzip the correct installer

C. Install the driver (I did not need to restart on Windows 7 SP1)

D. Click Windows

E. Click Devices and Printers

F. You should see Silicon Labs CP210x USB to UART Bridge

G. Note the COM port (you'll need this later)



Step 2:

A. Click Window

B. Click Show View

C. Click Other


Step 3:

A. Expand Terminal

B. Click Terminal

C. Click OK


Step 4: Click Settings



Step 5:

A. Use the COM port listed in Devices and Printers (or type it in: COM9 for instance)

B. Click OK


Part V: Run HelloWorld


Step 1: Run Debug once


A. Right click HelloWorld

B. Click Debug As

C. Click Launch on Hardware (System Debugger)

D. Click Yes

E. Click Yes




Step 2:

A. Click Run

B. Click Run Configurations...


Step 3:

A. Make sure System Debugger using Debug_HelloWorld.elf on Local is selected

B. Check the Reset entire system check box

C. Check the Program FPGA check box

D. Ensure the Run ps7_init check box is checked

E. Ensure the Run ps7_post_config is checked

F. Click Apply

G. Click Run


H. Switch back to the C/C++ View



You should see:


Step 4: Run the program again

A. Click Run

B. Click Run (this will use the Run Config you set up previously)

C. Click OK

You should see another Hello World:



Part VI: Debug HelloWorld


Step 1: Click to disconnect Run terminal

Step 2:

A. Click Run

B. Click Debug Configurations...


Step 3:

A. Make sure System Debugger using Debug_HelloWorld.elf on Local is selected

B. Make sure the Reset entire system check box is checked

C. Make sure theProgram FPGA check box is checked

D. Ensure the Run ps7_init check box is checked

E. Ensure the Run ps7_post_config is checked

F. Click Apply if anything changed (the Apply button will be grayed out if no changes were needed).

G. Click Debug

H. Click Yes

You should see:


Step 4: Connect the serial port

A. Click SDK Terminal

B. Click the '+' (Connect to serial port.)

C. Use these settings and click OK

You should see:


Step 5: Click Resume (F8)

You should see:


Step 6: Restart Debug

A. Click Run

B. Click Debug (this will use the Debug Config you set up previously)

C. Click OK

You should again see:

Note: to disconnect the debuggers serial port click here:

You should see:



References

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