Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

11/18/2013

MW 05:04 PM FPGA Development: RE: Unable to access Linux

Hi Jack,
We haven't trying using an Altera MMK, we instead us the USB Blaster or the USB Blaster II directly. Is it possible that the Altera MMK is holding the reset pin active?
You can load the FPGA via an Raw Binary File without... Michael Williamson

04:38 PM FPGA Development: Unable to access Linux

Hi,
I am having trouble accessing the Linux system on the SD card, when the MityARM is connected to the PC, meaning that I can't access on putty. However, when it's not connected to the PC via the programmer board (Altera MMK), I can ... Anonymous

MW 05:01 PM FPGA Development: RE: Input/Output interfacing

Hi Rich,
You need to be careful with the pin assignments. If you change an assignment that is by default controlled by the HPS subsystem to FPGA fabric (or vice-versa) you will need to regenerate the Altera "Pre-Loader" (first stage ... Michael Williamson

MW 04:57 PM FPGA Development: RE: FPGA - HPS DDR Memory

Hi Jack,
I would recommend using Qsys and exporting the FPGA->HPS DDRAM bridges. Then if you create an Avalon memory mapped controller (spec including the timing diagrams can be found "here":http://www.altera.com/literature/manual/mn... Michael Williamson

04:42 PM FPGA Development: FPGA - HPS DDR Memory

Hi,
I need to design system where I store input data to the memory via the FPGA, and then export it out to my computer through the HPS.
My only problem is that I am not very familiar with using the AXI bridge. Can someone please pr... Anonymous

11/14/2013

RB 02:39 PM FPGA Development: RE: Input/Output interfacing

Thanks Mike,
I was able to export the signals I wanted and they now show up in Pin Planner.
Is it in general ok to retask signals in the 5CSX_IO class?
For example, I see that on Module Pin Number 60 corresponding to CYCLONE pin AH2... Rich Bagdazian

11/13/2013

MW 01:41 PM FPGA Development: RE: Input/Output interfacing

The FPGA ball numbers can be mapped to the edge connector via Table 7 in the "datasheet":http://www.mitydsp.com/images/upload/File/MityARM-5CSX-Datasheet.pdf.
The devkit baseboard schematic is "here":http://support.criticallink.com/re... Michael Williamson

11/12/2013

RB 07:03 PM FPGA Development: RE: Input/Output interfacing

Also, I don't know if I have seen a file which shows which physical pins on the FPGA end up on which physical connectors/pins on the carrier board.
Can you point me in the right direction?
Thanks! Rich Bagdazian

RB 07:01 PM FPGA Development: RE: Input/Output interfacing

Hi Dan
Yes, I have done exactly as you described.
I haven't worked with the Pin Planner as of yet, so I'll take a look at that tomorrow.
So if I understand correctly, after I do a successfule Analysis and Synthesis step, the signals... Rich Bagdazian

DV 05:49 PM FPGA Development: RE: Input/Output interfacing

Hi Richard,
I'm guessing you've created a component with a conduit for these external signals and you've exported this conduit through qsys to your top level entity, is this assumption correct? If it is then you can use the pin planne... Daniel Vincelette

RB 04:47 PM FPGA Development: Input/Output interfacing

I have built a custom component in QSYS as a memory-mapped avalon slave and been able to interface it
correctly so that I can communicate with it via the ARM processor as expected. This module also provides
some I/O signals that I want... Rich Bagdazian