First time ever using spell cheker in EMACS. Hard to believe...but it's true!
I am sure this speaks volume for how little I have commented my code over the years!
old implementation felt too "cutsy"
this makes for a cleaner usage model (simple shift with param)
also splitting out enable but, not making the CTIMER mistake again
-adding reset signals to synchronizer to solve startup issues
-setting config in test bench for speedup, default reg config now correct
-fix (my) stupid bug in etx_arbiter
-adding reset to fifo (todo: review this!)
-reviewing "all red" from waveforms is a must. Red (x) on data is ok, but leaving them on control signals is asking for trouble. Better safe than sorry when it comes to reset.
-changed ecfg clock default values, elink default is now the PLL clock/128 coming out of reset
-should work in any implementation?
-still have to implement the Xilinx specific stuff
-pll bypass for clocks (customer request)
-adding dividers on all clocks (tx/cclk)
-adding reset block (clearer)
-using commong clock_divider block
-need to clean up divider block later today, slightly broken:-)
-First bug was a typo. Cursing AXI for making every signal look exactly the same at first glance. Not good use practice
-Second bug was sloppy. (removed pipeline stage on write data by mistake)
-added register read/write properly
-removed redundant wrapper layers in maxi/saxi
-changed over to "emesh" interface from packet 103 bit data
-cleaned up maxi
-cleaned up saxi
-removed redundant signals in elink interface (user,lock,..)
-added wrapper to fifo (to carry emesh interface through)
Now comes the fun part of testing
Our "standard packet" order should be followed everywhere to ease verification and integration (standards are good fir reuse...):
[0]=access
[1]=write
[3:2]=datamode
[7:4]=ctrlmode
[39:8]=dstaddr
[71:40]=data
[103:72]=upper-data (or srcaddr)
-adding clock bypass mode for esystx[12]
-removing monitor feature on erx
-remove loopback support from doc
-add clock bypass mode for esysclk
-shortening register names (descriptive enough)
-added debug signal information
-moving registers to elink
-making elink version programmable (to support plug in boards)
-reorganized debug signals and added stickys
-added timeout for axi slave
-removed embox status bit (redudant, don't poll status)
-renamed EMBOX0-->EMBOXLO
-moved datain interface straight to ecfg (cleanup)
-changed etx arbiter priority to increase stability
-created the esaxi_mux block
-fixed some missing ports issues in stubs
Now comes the fun part...verification...
Andreas
Testbench is split between the synthesizable transactors and
non-synthesizable parts to allow reuse of transactors in the newly
added verilator test bench
