OpenCores
URL https://opencores.org/ocsvn/gecko3/gecko3/trunk

Subversion Repositories gecko3

[/] [gecko3/] [trunk/] [GECKO3COM/] [gecko3com-fw/] [gecko3com.iic] - Rev 20

Rev

Go to most recent revision | Details | Compare with Previous | Blame

Filtering Options

Clear current filter

Rev Log message Author Age Path
20 basic synchronous IN (fpga to host) transfer works.

detail changes:
-the scpi command "fpga:data" checks now, if the fpga is configured before it changes the context to the fpga. if the fpga is
not configured, it returns an "EXECUTE ERROR".
in the same way, the main_loop checks if the fpga looses his configuration. it disables the GPIF, switches the context back
to the fx2 if so. this is mainly to avoid undeterministic behaviour if you reconfigure the fpga via jtag.

-introduced the new signal "EOM" end of message from the "usb tmc protokoll interpreter" to the gpif_com module

-changed the GPIF waveform for the FIFO IN transfer to the new scheme.

-implemented the same waveform into the gpif_com_fsm.vhd. works well together.

-bugfixed the gpif_com_test.vhd. sends the new EOM signal, the response message generator works now as it should.

-added the missing AUTHORS README and COPYING (license) files to the core directory.
nussgipfel 5234d 11h /gecko3/trunk/GECKO3COM/gecko3com-fw/gecko3com.iic
19 found a pinning error in the series production documentation. fixed in the wiki and the core.

really stable host to fpga data transfer achieved. several time over 4Gbyte transfered. including switching to fpga to
host GPIF waveform to listen to possible fpga transfer tries. but fpga to host transfers still not finished.

the correct length of data is read from the gpif_fsm now. still untested data consitency when data flow throtling occours.
need bigger buffers to test this. will be done on a higher level.
nussgipfel 5242d 13h /gecko3/trunk/GECKO3COM/gecko3com-fw/gecko3com.iic
18 I achieved now stable OUT transfers (from the PC to the FPGA) with working throtling (when the FPGA consumes data slower than the host delivers).
The basics needed for this are implemented in the FPGA like handshaking with the FX2 and clock domain transistion from the Interface clock to the user defined system clock.

in the gpif_com_test.vhd is a message rom, containing a prepared answer message to generate an IN transfer. this is needed for the next step.
nussgipfel 5245d 21h /gecko3/trunk/GECKO3COM/gecko3com-fw/gecko3com.iic
16 release candidate 3: 0.4rc3

fixed a bug in the get_capabilities function. was fixed before but it was back again...

removed one file from the build process, that shouldn't be in the subversion.
nussgipfel 5260d 17h /gecko3/trunk/GECKO3COM/gecko3com-fw/gecko3com.iic
15 this is the release of version 0.4rc2

we provide now the downloadable *.iic file of the current version in the repository at the convinient place
"gecko3com-fw/firmware/"
nussgipfel 5273d 18h /gecko3/trunk/GECKO3COM/gecko3com-fw/gecko3com.iic

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.