fdf3ddeb4a
hw: added some notes on RevA bringup issues
2023-03-05 11:52:41 -07:00
54ac22429e
add jtagdap submodule for now
...
(need to update it to use amaranth to do debug in minerva)
2023-03-05 11:52:16 -07:00
6ef410786e
fw: moving forward a bit
2023-03-05 11:48:08 -07:00
cc763a3e9b
requirements.tx: amaranth-community-unofficial -> amaranth-farm
2023-03-05 11:47:09 -07:00
8d00e15835
gateware: fix dumb mistakes
...
Bus widths should now all be correct. (addresses and sizes in amaranth
take into account the granularity selection, so granularity acts like
two extra bits on the bus address line)
Also don't ignore a warning about undriven resets. Turns out that can
gate *everything* off in your design.
2023-03-05 11:43:59 -07:00
60b7b485da
fw: start janky ethernet bringup testing
2023-03-04 12:42:22 -07:00
a970a0154b
hardware: add some bringup notes for rev A
2023-03-04 12:42:15 -07:00
8b19464608
gateware: propogate MDIO signal correctly w/o IOBUF
...
This was causing my nextpnr crash. I really do need to figure out how to
do this in a less hacky way. Or even just make it more explicit that I
am doing this for a reason.
2023-03-04 12:41:16 -07:00
6e89c0d837
gateware: actually integrate ethernet
2023-03-04 10:54:43 -07:00
56d13a0e77
gateware: add PLL and generate two clocks
...
TODO is make a proper clock gen object, maybe it could run ecppll by
itself?
2023-02-25 12:56:09 -07:00
1b39199df3
gateware: generate PLL with 'ecppll'
2023-02-25 12:24:03 -07:00
fe379be39b
gateware: saving some state again
2023-02-18 11:56:39 -07:00
5595c7d113
gateware: import basic instance of LiteEth
...
more config to do, need to fully hook everything up, but it's a start
2023-02-07 21:00:38 -07:00
0bf4fb5c1b
gateware: test out UART, had to fix SR flags
2023-02-04 14:40:05 -07:00
c3f62c271c
hardware: export first production gerbers
2023-02-04 13:11:54 -07:00
52012dc4ad
gateware: saving some WIP on UART
2023-02-04 12:04:01 -07:00
71ca5a31be
gateware/i2c: flesh out full R/W transaction in test
2023-01-30 10:09:28 -07:00
f0683e684c
gateware: Properly migrate I2C test into my new framework
2023-01-29 21:32:56 -07:00
9997db0ac8
gateware: create vcd_out directory by default
2023-01-29 20:41:17 -07:00
ad3be1f4c7
gateware: put in some testing infrastructure
...
It's pretty hacky tbh, probably should be improved.
But also this will probably scale with the entire project so I don't
care.
2023-01-29 20:38:32 -07:00
490b92b1fd
gateware: first work with I2C peripheral
...
Basic details seem to be working, and I'm on my way with testing.
Next steps:
- Build out more local testing utilities
- Build out unittest infrastructure
- Flesh out more tests to verify operation
2023-01-29 16:54:29 -07:00
6a4a9784e3
gateware: fix some issues introduced with cleanup
2023-01-29 16:54:14 -07:00
dbf81c4baf
finished first revision of hardware!
2023-01-28 13:29:56 -07:00
50a286afbe
hardware: schematic should be finished, layout seems roughly solid
2023-01-25 21:44:12 -07:00
8bc0e55104
Add python dependency install instructions
2023-01-23 22:38:53 -07:00
5619482029
gateware: start spreading out into a couple modules
2023-01-23 22:32:46 -07:00
296206524c
gateware: remove LiteX attempt
2023-01-23 22:28:03 -07:00
db431e7ba7
Improve top-level docs
2023-01-23 22:27:45 -07:00
fb2eda3c80
hardware: check in colorlight-base design
...
Schematic has a few large-ish TODOs, but general structure is done I
think?
2023-01-23 22:01:37 -07:00
cf1c129054
gateware: name submodules properly and start fleshing out CLI
2023-01-22 20:25:39 -07:00
446db81464
gateware: start some design documentation and clarify some design
...
decisions
2023-01-22 20:15:48 -07:00
883b712a53
gateware: fixed various bus issues
...
- The Record.connect() function returns statements that need to be added
to the comb domain.
- Addressing of the devices works on word-sized chunks, so everything
needs to be adjusted there
2023-01-22 15:25:24 -07:00
1cfa5a47de
firmware: made some rust firmware to test
...
Had some issues due to lack of startup code (stack pointer was unset,
leading to underflow in address space), so decided to just get the rust
FW started instead of finding some startup code to use.
2023-01-22 15:20:27 -07:00
a1853dbe81
gateware: first attempt at amaranth SoC
...
My FW appears to do nothing, will need to start debugging with a
simulation now.
2023-01-21 22:43:17 -07:00
a6673297d4
gateware: failed attempt to add my own peripheral to litex
...
moving to amaranth because it at least has API docs :(
2023-01-10 20:30:00 -07:00
d46dcc4a43
Added basic building instructions
2023-01-06 19:12:14 -07:00
356ffb4e98
gateware: made basic SoC, mostly just copying existing colorlight target
2023-01-06 19:03:46 -07:00
e37b97bcf9
fw: wrote a simple little hello world app in C
2023-01-06 19:03:28 -07:00
e43f508e84
finish the last of pmod work. LVDS no workie
2022-09-11 20:03:16 -06:00
6500667d37
hw/pmod: adjust schematic and start PCB
2022-09-10 15:28:58 -06:00
10dfcccde0
hw/pmod: change symbol library to local path
2022-09-08 21:11:52 -06:00
ec80aeefd4
update README after microwatt 'adventures'
2022-09-08 21:09:25 -06:00
e1074313ca
hw/pmod: finished schematic. Needs review and component selection
2022-09-08 21:06:27 -06:00
d0c37c11ca
Added README
2022-08-05 14:59:56 -06:00
