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Blog 3: Getting Started with Vivado |Path to Programmable 3| Part 2

prashanthgn.engineer

Hardware Training Summary

Lesson 4: Peripherals

Zynq MPSoC General connectivity 

PS IO : MIO only 

  • Qual SPI
  • NAND
  • GEM - Gigabit Ethernet
  • USB2.0 through ULPI interface
  • GPIO : 0-2 Bank

EMIO/EMIO Possibility 

  • SD/SDIO/eMMC
  • Control Area Network 
  • I2C
  • UART
  • SPI
  • Trace
  • Software Watchdog
  • GPIO - EMIO also can be used

only EMIO

  • GEM as GMII
  • UART modem Signals ( CTS,. RTS, etc) 

High Speed PS Peripherals : Configurable GTR Transceiver interfaces 

  • PCIe Gen2 : to x4
  • SATA : to 2 Ports 
  • Display Port
  • USB3.0

Interconnect matrix used to determine connection. 

All interfaces are configurable through I/O configuration window. 

Assign them to necessary MIO Pins 

Zynq MPSoC Memory Map

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Vivado Assigns address for PL based designs Automatically.  

LAB 3 : PS Configuration Part 2 MIO Peripherals

Experiment 1: Enable and Map all PS Peripherals

{gallery}Lab3 : Experiment 1

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SD0 and SD1 Interface selection

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I2C0 and GPI, GPO interface selection

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SPI and UART interface Selection

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GPIO MIO, SWDT and TTC interfaces

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High Speed Port Selection : DP : GTR lanes 0-1, USB 3.0 - GTR Lane 2, USB3.0 GTR Lane 3

Experiment 2: Set the PS Clocks

{gallery}Set the Clocks

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Set the Input Clocks

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Set the out Put clock : PLL modes

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PLL Settings

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Validate the Block Design

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Reset the output parameters

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Generation of output Parameters

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Bistream Generation

Experiment 3: Create and Run Test Applications

{gallery}Memory Application

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Opening the Platform Project

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Hello World Application

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Memory Application Test Passed

https://youtu.be/D-4nNUPAGAA 

Peripheral test

Lesson 5: The Power of Tcl

What is TCL ? 

General instruction to TCL

  • For Rapid Prototyping 
  • Scriptiong Application 
  • Run TCL Commands for any automated process
  • Walk through TCL Commands
  • TCL can be used to create a Block Design

LAB4 : Using TCL in Vivado Embedded Designs

{gallery}TCL

TCL Script

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TCL Script -2

Lesson 6: Merging the Processing Subsystem (PS) and Programmable Logic (PL)

AXI Ports

AXI Port Types Qty
Full Power Master Domine Ports 2
Low Power Domine Master part 1
Low Power Domine Slave part 1
High Perfomance Coherent Slave ports 2
High Performance Slave Ports 4
Accelerator Coherency Porst ACP 1
Accelerator Coherency Extension Port  1
Total 12

  • AXI Types: Master and Slave modes only 
  • Master to master cannot be connected: only unlike Ports can be connected: Master to slave 
  • Full duplex communication from Master to Slave AXI Bus 
  • Five AXI Channels 
    • Read Address
    • Read Data
    • Write address.
    • Write data
    • Write Response
  • Up to 16 Master and 16 Slaves
  • 32~256 Bit data Width 
  • Dedicated oqn clock Domine for master and Slave

AXI Smart interconnect

  • 16 Master -Salve
  • 32~1024 Data bits
  • AXI protocol compliant 
  • only Round Robin Arbitration

AMBA BUS : Advanced Microcontroller BUS architecture 

AXI Follows Handshakes READY/VALID 

AXI4-Lite

  • Lite weight 
  • Design tradeoffs- No burst, No ID, 32/64 Bits only 

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Source : https://semiwiki.com/wp-content/uploads/2020/01/AMBA-history.png

AXI Stream

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  • FPD/LPD supports 32/64/128 Bit Data bus
  • LPD Burt Length is limited to 16 Bits only 
  • LPD enables Direct access to PL!!! - Like Block RAM and DDR

High performance Slave AXI

  • High bandwidth Master to Slave Data
  • Access to Memories like DDR, OCM, TCM
  • x4 128/64/32 Bit Configuration 
  • Smooth Long Latency event 
  • Low latency path for DDR, OCM, TCM

More info available on Zynq Ultrascale+ technicial Reference Manual : Zynq UltraScale+ Device Technical Reference Manual (xilinx.com)

LAB 5 : Adding a PL Peripheral

https://youtu.be/yCUj-xQ5exI

{gallery}My Gallery Title

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AXI BRAM IP and Connection Automation

Block RAM Generator IP

Zynq Ultrascale+ MP SoC IP : Enabling AXI Master Interface

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Connection Automation for AXI Bus

BitStream Generated

Lesson 7: Zynq DMA Controller

  • What is DMA : Direct Memory Access :  IOs can access memory directly without CPU involving.
  •  DMA is the effective way to connect between PS and PL

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Data Path 

  • Data from Slave AXI to  Slave Interconnect though FPD Main Switch 
  • Passs though CCI to L2 cache
  • from L2 to DDDR DRAM
  • FPD and LPD move data between DDR, OCM and Slave PL Peripherals

Additional DMA Controllers included in below peripherals 

  • PCIe Gen2
  • SATA
  • Display Port 
  • Gigabit Ethernet
  • USB3.0/2.0
  • SD/SDIO/eMMC
  • QSPI

Lab 6 Improving Data flow between PL and PS utilizing PS DMA

{gallery}Lab 6

Adding DMA Application

BRAM to DRAM Application Stuck

DRAM to DRAM is passing

Lesson 8: Creating Custom IP

  • IP Packers includes
    • Source Files
    • Simulation Models
    • Example Design
    • Documentation 
    • Test bench
  • Wizard in Vivado to create an IP!!!
  • IP Package creates HDL Source

LAB 7 : Add Custom PL Peripheral

{gallery}Creating the IP

Creating the IP

Creating the AXI Pheripheral

Adding AXI

IP Created available in catalogue

Lesson 9: Vivado's Hardware Manager

FPGA Design is an iterative Process.

ILA : Integrated Logic Analyzer 

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VIO 3.0  : Vivaldo native Virtual input and Output 

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JTAG to AXI 1.2

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Lesson 10: Tcl Scripting and Next Steps

  • Allow for easy share of Project
  • TCL build projects in minutes 

the Learning with ELement14 will continues..

Feel free to Share your thoughts.

Regards

Prashanth Kumar G N

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