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Getting Started with the LimeNET-Micro

Revision as of 13:30, 3 April 2019 by RicardasGarmus (Talk | contribs)

1 Getting Started with LimeNET-Micro

1.1 Basic setup

1.1.1 Powering the board

LimeNET-Micro board can be powered in three ways:

  • Power over Ethernet – using RJ45 connector and power sourcing equipment (PSE) such as PoE capable network switch or PoE injector. LimeNET-Micro board works with PSE supplying power in “Mode A/Endspan” as well in “Mode B/Midspan” modes;
  • DC connector - 5V power source connected to J28 power jack should be capable to provide 2A-3A current;
  • microUSB port - 5V power source connected to J15 connector should be capable to provide 2A-3A current;

Power source can be selected fitting jumper in one of the three positions on J27 header (see Figure 1):

  • A (pins 5-6) – 5V micro USB;
  • B (pins 3-4) – 5V external DC;
  • C (pins 1-2) – Power over Ethernet;
File:LimeNET-Micro 2.1 power selection .png
Figure 12. LimeNET-Micro board power selection header

To get LimeNET-Micro board up and running:

  • Set “Power selection” jumper J27 to “A” position (pins 5-6, 5V micro USB power selection);
  • Connect mouse and keyboard to J10 USB connectors;
  • Connect monitor cable to J19 HDMI connector;
  • Insert CM3 module into J13 socket (or CM3(L) module into J13 and uSD card into J16 slot).
  • Connect power adapter (5V, 2A-3A) to micro USB connector J15.

1.2 FPGA programming

Intel MAX10 FPGA can be programmed using JTAG adapter such as Intel FPGA USB Download Cable (formerly known as Altera USB-Blaster download cable). LimeNET-Micro board has two different size and pin count JTAG headers (J4 - 10pin 0.05” pitch header and J3 - 7pin 0.1” pitch edge connector). Additional cable adapter is needed to connect download cable to LimeNET-Micro board because Intel FPGA USB Download Cable comes with 10-pin, 0.1” pitch female connector.

Figure 14. FPGA JTAG pinheaders