Forum Discussion
AR_A_Intel
Super Contributor
6 years agoYes, there are some issue regarding USB-Blaster II use in Quartus 19.1 and engineering come out with Patch 0.03 as a worked-out solution refer here
https://www.intel.com/content/altera-www/global/en_us/index/support/support-resources/knowledge-base/component/2019/why-does-my-usb-blaster-ii-not-work-when-using-intel--quartus---.html
Based on my understanding, this is related to JTAG SI issue and still no solid solution to it, just need to change/lower the TCK frequency to 16M or 6M.