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"Regarding Driving Displays in MitydspL138F Vision Devlopement Kit"
Added by Naveen K.S about 11 years ago
Hi sir,
Initially our requirement is to drive two displays in MitydspL138F VDK.
In Mitydsp L138F based vision development kit datasheets it was given LCD panel interface and DVI interface are provided. Can we drive two displays both of resolution SVGA (800X600) simultaneously using the provided Display interfaces. Else can we make use of DVI to two channel VGA converter cables for fulfilling our requirement.
Kindly answer at the earliest
with best regards,
Naveen
Replies (1)
RE: "Regarding Driving Displays in MitydspL138F Vision Devlopement Kit" - Added by Michael Williamson about 11 years ago
If both the LCD display and the display connected to the DVI interface can run using the timings (e.g., same resolution, same pixel clock rate, same front / back porch settings, same vertical refresh rate) then you should be able to run both the DVI and the LCD interface at the same time. You will need to create a custom FPGA image to provide this capability -- you will need to route the LCD interface signals to both the DVI_* signals connected to the TFP410 on the industrial I/O board as well as to a FPGA based serializer to generate the LVDS signaling to the LCD panel interface.
I would have to double check, but I suspect that the timings for the 800x600 SVGA display called out on the wiki should support standard 60 Hz VESA timings, which means that timing signals routed to the TFP410 should support most 4:3 capable monitors.
You could also use a DVI splitter (the DVI interface only supplies the digital signals, not the analag DAC signals, so a "cheap" DVI to VGA converter will not work) to route the display signal to 2 monitors if that is desired.
If you are not comfortable with the FPGA portion of this effort, CL could assist with this under a small contract.
Thanks.
-Mike
