Arrow AXE5 Eagle Board JTAG issue
Hi, I have an AXE5 eagle board. The Quartus Programmer on Auto-Detect does show the usb blaster3 but the device is named UNKNOWN_364F0DD instead of A5ED065BB32AES4. What do you think could be the issue? BTW I am on Linux RHEL 8. I am using Arrow blaster and used FTProg to flash it as USB Blaster 3 as suggested by guide
PDN file and PCB decoupling
Hello, In the PDN excel file how is determined the ESR and ESL value for the decoupling capacitor ? I would like to add bigger capacitor . Is there some explanation for this file ? all the cells are locked. Is there some explanation to help to determine the number of capacitor needed for an application. I put the power rail voltage and current and now I need to determine the capacitor decoupling for each rail. I'm using a 5CEFA4_M13 chip on my board. Thanks for your help
EPM9320LI84-20
Hello! Could you please clarify something? Within the same batch of EPM9320LI84-20 FPGAs, the marking quality varies significantly, which is especially noticeable in the letter A in the ALTERA logo. This is not an isolated case within the batch—there are several chips with the same issue. Could this happen during manufacturing? As you understand, these chips were discontinued long ago and are no longer available from official distributors, so we have to source them from less reliable suppliers. Please respond as soon as possible. Thank you!
Terasic Atum A3 Nano
Hi, I am working through the getting started manual for this board which is generally pretty good. However there are no examples of how to use the SDRAM or the Ethernet PHY on this board. It is not clear to me if there is any IP that can be added for the SDRAM or the ethernet. Are there any examples of how to use both functions? I bought the board assuming that these functions were included and I could just add my own custom IP application. Do I have to write my own VHDL for these functions and then the low level C drivers or are there examples? Any help would be much appreciated. Thanks
