a15593b217
Added a simple block diagram of the organization of the Caravel
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harness chip.
2021-10-21 22:40:46 -04:00
e474dbbc99
Corrected the last testbenches, added a new testbench for the spi_master
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since the original one was folded into the sysctrl testbench, but that
testbench no longer uses the SPI master. Moved the SPI master from being
an overlay of the housekeeping SPI to occupying GPIO pins 32 to 35.
Made GPIO 35 a bidirectional pin like 36 and 37 so that the output enable
from the SPI master can be used.
2021-10-21 19:48:24 -04:00
43ced83bd8
Correction to the mprj_bitbang testbench to run the test without running
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into issues of contention between the SPI and wishbone interfaces. The
testbench now passes, although the contention isn't handled particularly
well.
2021-10-21 10:57:20 -04:00
d0f74db23b
Updated pinout in documentation (doc/README file)
2021-10-20 10:24:41 -04:00
000a5266ef
Corrected an error in the bitbang testbench (but it does not cause the
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testbench to pass).
2021-10-19 23:10:51 -04:00
184f4a637c
Added the rest of the testbenches: mprj_bitbang, perf, pll, qspi, and
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storage. Not all of these pass simulation checks. Added back the
bit-bang control of the GPIO programming. Added back the read-only
interface between the housekeeping module and the SRAM 2nd port.
Revised the memory map text document to reflect the addition of the
SRAM ports. There is not yet a testbench for the SRAM read-only
interface.
2021-10-19 19:05:47 -04:00
767342e183
Added a completely revised sysctrl testbench based on accessing the
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housekeeping SPI through the back-door wishbone interface. Checks
most of the SPI registers (but could do more).
2021-10-19 17:32:20 -04:00
e2f6a02688
Added and verified testbenches timer, timer2, uart, and user_pass_thru.
2021-10-18 21:53:09 -04:00
0fa2e3bb89
Added testbenches for irq, mem, mprj_ctrl, and pass_thru (note that "mem"
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does not pass yet and still needs to be debugged).
2021-10-18 20:32:50 -04:00
2e57b5da08
Added and debugged two more testbenches, gpio_mgmt and hkspi.
2021-10-18 11:25:26 -04:00
33ca4e11ef
Additional corrections, mostly to the housekeeping module. The
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top-level simulation now passes the GPIO testbench.
2021-10-17 21:38:40 -04:00
1863a7c529
A number of small corrections.
2021-10-16 23:55:57 -04:00
842200b7ec
Changed the memory map to move the 2e and 2f wishbone domains into
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the 26 domain (now dedicated to the housekeeping module), with
2e0... now 261... and 2f0... now 262... Although this is not
strictly backwards-compatible, the addresses in defs.h have been
modified so that C code remains valid with a recompile.
2021-10-16 17:58:36 -04:00
2f74fa83ee
Reinstated the logic analyzer as a standard interface for the
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management SoC.
2021-10-16 17:42:24 -04:00
bdfa747145
First major update; current code passes syntax checks in iverilog
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and simulates, but fails testbench (not surprising at this stage).
2021-10-15 21:49:49 -04:00
f1909cab52
Merge branch 'main' of github.com:efabless/caravel-openframe into main
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Pulling recent commits.
2021-10-12 16:32:48 -04:00
332f9ec2e7
Seeding with documentation of pinout and verilog RTL (mostly unchanged
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from original except to remove blocks that are not supposed to be in
this repository like the processor core and the storage).
2021-10-12 16:31:42 -04:00
fd885a9b10
Update README.md
2021-10-12 10:28:29 -07:00
fac8558a37
Update README.md
2021-10-12 09:38:05 -07:00
271f978bc8
Update README.md
2021-10-08 08:00:07 -07:00
9615b3d0fc
Update README.md
2021-10-07 11:34:30 -07:00
1a7a9dcc16
Initial commit
2021-10-07 11:32:23 -07:00
Tim Edwards
Jeff DiCorpo