Commit Graph

1 Commits (d1e8e62feee3e2d2d01a69f1486e8099e8438b31)

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

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 <>
3 years ago