- Too much junk in there, couldn't understand my own logic 4 weeks later...
- emesh_if is a disaster, I have yet to find a way to write code that lets me remember the pass through bidirectoral logic for more than 1 day. Removed the interface and replaced it with 3 lines of code.
-Mailbox is a pretty useful little block, registers don't belong in the RX space
-Moved registers to the "MESH" group block at bits [10:8].
-Feel good about this, should not change...
-Has been tested to work with test/test_regs.emf
-For new register address, see README.md
cc @olajep @peteasa
- Removed the cfgif block, too confusing. There is a good lesson here. Probably the n'th time I that I have been overzealous about reuse. When you end up adding a parameter to a block that duplicates the logic 2X it's always better to create two separate blocks...
- Changed the register access interface to packet format
- Change the priority on the etx_arbiter to pick read responses first
- Removed redundant signals
- Took away the read resonse bypass on remap in tx for now..
- Removed defparams (convention)
- Unified wait signal on tx
- Fixed cfg wait
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- Bypass path was ugly! Always try to go through the same logic path as much as possible.
- Note: when MMU is enabled, you need to put in entry for read return (ie 810)
- Gating mailbox_not empty with irq_en. bit [28] of RXCFG
- Changing elink output interrupt to "or" of not_empty and full
- Adding mailbox status register (mostly for debug)
- Moving register addresses to make space for mailbox status register
- Fixing wrappers for DV
- Updating README docs with new register map
- Removing mailbox from RX status reg. Doesn't belong there, should be coupled with mailbox for modularity.
- Turns out I was debugging ghosts for ~1 day today. Everything was working in simulation but nothing works in the FPGA. Since I was only changing small logic stuff, I didn't bother checking the warning messages in Viviado. Turns out for some reason it was throwing away some logic and disconnecting all the important rr signals
- This is where I was making changes, but I still can't figure out what exactly was happening...doesn't make sense. Either there is a bug in icarus or in vivado, this shouldn't happen!
