Forum Discussion
New ContributorJTAG chain broken
Hi,
Could you try to only connect to the 10M08 device? Are you using the onboard blaster or external blaster? If you are using onboard blaster then could you try to change the TCK frequency to 6Mhz?
ContributorIf you don't install the usb blaster driver, you can do it from here: (https://rocketboards.org/foswiki/Documentation/UsingUSBBlasterUnderLinux)
If you install the driver, you can try:
$sudo killall jtagd
then you must restart jtagd from:
$cd <Quartus path>/<Quartus version>/quartus/bin/
(mine path: ~/intelFPGA_lite/20.1/quartus/bin/)
$./jtagd
or
$./jtagd --user-start
then you can look jtagconfig:
$./jtagconfig
If your drivers succesfully installed and usb blaster is connected the pc you can see like this in first line when you run jtagconfig:
1) USB-Blaster [1-3]
If usb blaster connected the fpga you can see the fpga device model in second line. If you can't see the second line disconnect all cables then connect blaster to fpga then power up the fpga then connect blaster to the pc and retry the above steps.
New ContributorI installed the USB Blaster driver and can see the first line. I tried the above method, but jtagconfig still does not display the second line. Only the de10-lite development board can display here.
In windows, I can see both of them
my quartus_version is 18.1 and my chip is 10M08SCE144C8G. There is my schematic design, and PCB has no solder bottom pad for the chip. I don't know if these will affect jtagconfig.
