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[/] [gecko3/] [trunk/] [GECKO3COM/] [gecko3com-fw/] [firmware/] [src/] [gecko3com_main.c] - Rev 21

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21 system is fully working and tested with big files over 4 Gbyte. there were some smaller bugs and glitches which caused
sometimes a deadlock. they are fixed now.

one was because the fx2 reads the done pin sometimes wrong during a long data
transfer. I don't now if this is because of crosstalk on my prototyping system or fpga internal weakness.
a simple debouncing (read again after 40 ms) did the trick.

changed firmware version to 0.5rc0, basically all features targeted for 0.5 are done.		 nussgipfel 5403d 10h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/src/gecko3com_main.c
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 5404d 08h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/src/gecko3com_main.c
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 5412d 10h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/src/gecko3com_main.c
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 5415d 18h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/src/gecko3com_main.c
13 included the gecko3com_0.31.tar.gz firmware package needed to initialize fresh produced boards without any
serial number or fpga type information.

fixed two bugs that were found during testing of the version 0.4-rc
- the GET_CAPABILITIES function in the usb_tmc module was using a wrong pointer and returned garbage
- the SLOT_ADRESS defines for the spi write functions were using constants only usable on the GECKO3main prototype

changed some other small stuff to avoid compiler warnings or clarifie some comments.		 nussgipfel 5443d 17h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/src/gecko3com_main.c
9 First commit to the OC svn.

This is the release candidate for the GECKO3COM firmware version 0.4.

Included are all sources, scripts and helper tools.

Implemented functionality to this firmware version:
- FW upgrade through USB DFU class
- works as a USB TMC device (test and measurement class)
- handles all mandatory IEEE488 and SCPI commands
- fpga can be configured through USB
- two different fpga configuration files can be downloaded the the onboard memory
- loads one of these configuration files during power on

next step is to implement the transparent data communication between the USB host and the FPGA		 nussgipfel 5475d 15h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/src/gecko3com_main.c

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