TIDUF83 September   2024

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 DP83TC817S-Q1 (Automotive SPE PHY)
      2. 2.3.2 TPS629210-Q1 (3.3V Rail Buck Converter)
      3. 2.3.3 TPS7B8233-Q1 (3.3V VSLEEP Ultra-Low-IQ Low-Dropout Regulator)
      4. 2.3.4 TPS74701-Q1 (1.0V Rail Low-Dropout Regulator)
      5. 2.3.5 CDC6CE025000-Q1 (BAW Oscillator)
  9. 3System Design Theory
    1. 3.1 Ethernet PHY
      1. 3.1.1 Ethernet PHY Power Supply
      2. 3.1.2 Ethernet PHY Clock Source
    2. 3.2 Power Coupling Network
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
    2. 4.2 Software Requirements
    3. 4.3 Test Setup
    4. 4.4 Test Results
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  12. 6About the Author

4.4 Test Results

The following terminal message is captured from the Jacinto™ 7 EVM. With the 100Mbit/sec connection, observe that 114 MBytes (112 MBytes) of data successfully transferred and the bandwidth is very close to the advertised speed of the network port (100Mbit/sec).

root@j721e-evm:~# iperf3 -c 192.168.1.1
Connecting to host 192.168.1.1, port 5201
[  5] local 192.168.1.237 port 32836 connected to 192.168.1.1 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  12.6 MBytes   106 Mbits/sec    0    249 KBytes
[  5]   1.00-2.00   sec  10.9 MBytes  91.7 Mbits/sec    0    249 KBytes
[  5]   2.00-3.00   sec  11.4 MBytes  95.9 Mbits/sec    0    249 KBytes
[  5]   3.00-4.00   sec  10.9 MBytes  91.7 Mbits/sec    0    249 KBytes
[  5]   4.00-5.00   sec  11.4 MBytes  95.9 Mbits/sec    0    249 KBytes
[  5]   5.00-6.00   sec  11.4 MBytes  95.9 Mbits/sec    0    249 KBytes
[  5]   6.00-7.00   sec  10.9 MBytes  91.7 Mbits/sec    0    249 KBytes
[  5]   7.00-8.00   sec  11.4 MBytes  95.9 Mbits/sec    0    249 KBytes
[  5]   8.00-9.00   sec  10.9 MBytes  91.7 Mbits/sec    0    249 KBytes
[  5]   9.00-10.00  sec  11.4 MBytes  95.9 Mbits/sec    0    249 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   114 MBytes  95.2 Mbits/sec    0             sender
[  5]   0.00-10.05  sec   112 MBytes  93.8 Mbits/sec                  receiver

iperf Done.