I have a supplier using the DK-DEV-5CSXC6N. Using the on-board USB-Blaster circuitry they can successfully run debug sessions on both the HPS and the FPGA. However when using an external USB-Blaster not so much.

​Hi,

May I know if yo are using USB-Blaster or USB-Blaster II? If you are using USB-Blaster II then I would recommend you to change the TCK clock frequency to 6Mhz.

USB-Blaster II (https://www.digikey.com/products/en?mpart=PL-USB2-BLASTER&v=544). My supplier has two and tried both getting the same results with both. They tried a 1M clock with the same result. The supplier stated "I believe we tried changing the speed at one point and it was not successful. I just tried again and once again have not been successful. JTAG speed is reporting back at 1M".

My supplier noted that they are using this Dev. kit... https://www.intel.com/content/www/us/en/programmable/products/boards_and_kits/dev-kits/altera/kit-cyclone-v-soc.html

Hi GMcSw1,

Based on your description, it seems like the USB-Blaster II is having problem as the debugging tools and USB-Blaster connection was working using on-board usb blaster. Can you try with another USB-Blaster II?

Also, can you try TCK frequency at 6MHz. 1MHz is too low and it might not working sometimes. Also, i have attached the method to configure the TCK frequency at link below, just in case you need it.

https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/solutions/rd06242013_922.html

Thank You.

Regards,

YL

We've tried two USB Blaster II's and clock frequencies of 1M, 6M and 16M. All with the same result.

​Hi GMcSW1,

Apologize that I cannot open the image file. Maybe can u attach it on the forum?

Can you check the following?

[1] Change the switches and jumper to default position.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_cv_soc_dev_kit.pdf (Page 11)

[2] Check whether if the HPS is in JTAG Chain when using USB-Blaster II? To check, simply open SoC EDS Command Prompt and type "jtagconfig".

[3] If it is on the JTAG Chain, try to program the board with USB-Blaster II.

Regards,

YL

Hi,

After further investigation, it looks like to be the issue related to HPS_TRST signal issue which the resistor for the weak-pull up is missing and causing the issue.