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what D1,D10,D11 leds denote inthe d400 board ?

Hi

                       I connected the D400 board using the USB and power is given .D2 and D3 are green ,the D8 is blinking at 1 Hz and D9 s also green.

            Then while opening the Explorer software suddently D2 turned red and then to green with two more (ie D1 and D10) to started green.

             what does it mean? the loading and resetting of DMD is working properly....please reply ..........Thanks in advance...........

 

  • Hello Sheela,

    This behavior is expected.  When you first start up the board there is a default version of the APPS_FPGA code loaded from eeprom.  This code should generate a number of patterns that can be used to verify that an attached DMD is working.

    Let me mention first that the D4000 has two FPGAs.  One is a user programmable FPGA which is called the APPS_FPGA.  The other operates the DMD subsystem and is called the DDC4000.  The DDC4000 handles all aspects of DMD operation and provides a user control interface to the APPS_FPGA.

    When you attach the USB cable the installed driver on the PC goes through several steps to load a version of APPS_FPGA code that allows the D4000 Explorer Software to communicate with the D4000 board. 

    During that process D1 turns on showing that USB communication is established.  D2 turns red while the GUI APPS_FPGA code is loading and then turns green again when the newly loaded code begins running.

    This new code also enables D10 when initialization is complete and the system is ready for operation. 

    D8 is the system "heartbeat" and is a visual indication that the DMD system (DDC4000 FPGS) is operating.  D9 indicates that the DDC4000 PPGA initialization is complete.

    D11 is not used by the GUI APPS_FPGA, but is available for use for those that wish to write their own APPS_FPGA code.

  • Thanks for the reply.

    How the APPS_FPGA coding is done?     Is there any specific IDE used specially for the FPGA used in the D4000 board? or we should use the Xilinx ISE ide for that.

    reply please