Vizualizare sursă pentru „Digilent Arty A7-100T vs Arty Z7”

= Digilent Arty A7-100T vs Arty Z7 (Zynq-7000 Z7020) =

== 1. Programmable Logic & FPGA Fabric ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| FPGA Device || style="background:#90EE90"|Artix-7 XC7A100T || Zynq-7000 XC7Z020 (PL)
|-
| Logic Cells || style="background:#90EE90"|~101,440 || ~85,000
|-
| LUTs || style="background:#90EE90"|~15,850 || Included
|-
| Block RAM || ~4,860 kbit || style="background:#90EE90"|~4.9 Mbit
|-
| DSP Slices || style="background:#90EE90"|240 || 220
|-
| PLLs / Clock Managers || style="background:#90EE90"|6 || 4
|-
| On-chip ADC || XADC || XADC
|}

== 2. Processor & Memory ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| CPU || None || style="background:#90EE90"|Dual ARM Cortex-A9
|-
| DDR RAM || 256 MB || style="background:#90EE90"|512 MB
|-
| Flash || 16 MB || 16 MB
|-
| microSD || No || style="background:#90EE90"|Yes
|}

== 3. Connectivity & Multimedia ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| Ethernet || 10/100 Mbps || style="background:#90EE90"|Gigabit
|-
| USB || USB-UART, JTAG || style="background:#90EE90"|USB-UART, JTAG, USB-OTG
|-
| HDMI || No || style="background:#90EE90"|HDMI In + Out
|-
| Audio || No || style="background:#90EE90"|Audio out
|}

== 4. GPIO & Expansion ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| Pmod Ports || style="background:#90EE90"|4 || 2
|-
| Arduino Header || Yes || style="background:#90EE90"|Yes (more pins)
|-
| Analog Inputs || XADC || style="background:#90EE90"|XADC + Arduino analog
|}

== 5. User I/O ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| LEDs || 4 + 4 RGB || style="background:#90EE90"|4 + 2 RGB
|-
| Buttons || 4 || style="background:#90EE90"|4
|-
| Switches || 4 || 2
|}

== 6. Toolchain & OS Support ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| FPGA Tools || Vivado || Vivado
|-
| Software Tools || MicroBlaze SDK || style="background:#90EE90"|Vitis, Linux, PetaLinux
|-
| OS Support || Bare-metal || style="background:#90EE90"|Linux, RTOS
|}

== 7. Target Use ==

{| class="wikitable" style="text-align:center"
! Board !! Best Use
|-
| Arty A7-100T || FPGA, DSP, custom digital logic
|-
| style="background:#90EE90"|Arty Z7-20 || Embedded Linux, video, networking, heterogeneous computing
|}


= FPGA-Centric Comparison: Arty A7-100T vs Arty Z7-20 =

In this view, green cells highlight the board that is **better for pure FPGA, DSP, and digital logic workloads**.

== 1. FPGA Fabric & Compute Resources ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| FPGA Device || style="background:#90EE90"|Artix-7 XC7A100T || Zynq-7000 XC7Z020 (PL)
|-
| Logic Cells || style="background:#90EE90"|~101,440 || ~85,000
|-
| LUTs || style="background:#90EE90"|~15,850 || (fewer, implied)
|-
| Block RAM || ~4,860 kbit || style="background:#90EE90"|~4.9 Mbit
|-
| DSP Slices || style="background:#90EE90"|240 || 220
|-
| Clock Managers (PLL/MMCM) || style="background:#90EE90"|6 || 4
|-
| Max FPGA Focus || style="background:#90EE90"|100% FPGA || Shared with ARM subsystem
|}

== 2. Determinism & Real-Time Logic ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| CPU Interference || style="background:#90EE90"|None (pure fabric) || ARM can steal bandwidth
|-
| Real-time latency || style="background:#90EE90"|Fully deterministic || PS ↔ PL introduces jitter
|-
| Clocking simplicity || style="background:#90EE90"|Single FPGA domain || Multiple clock & reset domains
|-
| I/O timing control || style="background:#90EE90"|Direct FPGA pins || Routed through PS/AXI
|}

== 3. Memory Architecture ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| DDR Access || style="background:#90EE90"|Direct FPGA control || Through ARM memory controller
|-
| Memory Latency || style="background:#90EE90"|Lower for PL || Higher via AXI/PS
|-
| DMA Complexity || style="background:#90EE90"|Simpler || More complex (AXI HP ports)
|}

== 4. DSP & Streaming Workloads ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| DSP Throughput || style="background:#90EE90"|More DSP slices || Fewer DSP slices
|-
| FIR/FFT pipelines || style="background:#90EE90"|Larger, deeper || Slightly smaller
|-
| High-speed streaming || style="background:#90EE90"|No OS interference || Linux/RTOS can interfere
|-
| RF / SDR suitability || style="background:#90EE90"|Excellent || Good but ARM overhead
|}

== 5. Expansion & Raw I/O ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| Pmod ports || style="background:#90EE90"|4 || 2
|-
| FPGA-routed pins || style="background:#90EE90"|More || Some reserved for PS
|-
| High-speed digital I/O || style="background:#90EE90"|More flexibility || More shared
|}

== 6. Development Simplicity ==

{| class="wikitable" style="text-align:center"
! Feature !! Arty A7-100T !! Arty Z7-20
|-
| Toolchain complexity || style="background:#90EE90"|Vivado only || Vivado + Vitis + Linux
|-
| Debugging || style="background:#90EE90"|Pure hardware || HW + OS + drivers
|-
| Bitstream boot || style="background:#90EE90"|Instant || FSBL + ARM boot
|}

== 7. Best Use Case ==

{| class="wikitable" style="text-align:center"
! Board !! Best Use
|-
| style="background:#90EE90"|Arty A7-100T || DSP, SDR, digital logic, FPGA acceleration, real-time pipelines
|-
| Arty Z7-20 || Embedded Linux + hardware acceleration
|}