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[/] [gecko3/] [trunk/] [GECKO3COM/] [gecko3com-fw/] [firmware/] [gpif-design/] [gecko3main_fifo_transfer.gpf] - Rev 19

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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 5234d 14h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/gpif-design/gecko3main_fifo_transfer.gpf
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 5237d 23h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/gpif-design/gecko3main_fifo_transfer.gpf
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 5297d 19h /gecko3/trunk/GECKO3COM/gecko3com-fw/firmware/gpif-design/gecko3main_fifo_transfer.gpf

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