cores
/
microwatt
mirror of https://github.com/antonblanchard/microwatt
3
1
Fork 1
Code Issues Projects Releases Wiki Activity
1,412 Commits
39 Branches
0 Tags
67 MiB
master
caravel-mpw7-20221125
caravel-mpw7-20220822
branch-alias
trace-test
gitignore
litedram-update
liteeth-update
fix-sdcard
fpu-init
loadstore-init
core_debug-init
icache-unused-sig
icache-insn-u-state
dcache-unused-sig
unused-sig
divider-init
loadstore-pmu-init
icache-pmu-events
fpu-typo
less-fpga-init
caravel-mpw6-20220530
caravel-mpw5-20220323
caravel-mpw5-20220322
alt-reset-address
log2ceil-issue
fpu-constant
asic-3
boxarty-20211011
icbi-issue
orange-crab-freq
dcache-nc-fix
remove-potato-uart
cache-tlb-parameters-2
caravel-20210114
caravel-20210105
jtag-port-2
jtag-port
nia-debug
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '4e5f856c55'
${ noResults }
Commit Graph

1 Commits (4e5f856c5517eebb022f17b07cfbe73ff95d422b)

Author SHA1 Message Date
Matt Johnston 3775650df3 dmi_dtm_ecp5: Use ECP5 JTAGG for DMI 
This uses the JTAGG primitive which is similar to BSCANE2.
The LUT4 delay approach came from Florian and Greg in
https://github.com/enjoy-digital/litex/pull/1087

Has been tested on an OrangeCrab with 48MHz sysclk
FT232H up to 30MHz (though libusb/urjtag is by far the bottleneck vs
the JTAG clock)

Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
 3 years ago