Ranjith21
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Quartus 23.4 shows 0.0 BER but negative eye height values
Hi, I am running BER test for 2 FPGAs. I am transmitting from Tx pin of first FPGA and receiving on Rx pin on second FPGA. Using Quartus 23.4 here. Both are Agilex F-tile F-series FPGAs. There is a total trace length of 13 inches between the FPGAs and the speed is 28Gbps NRZ PRBS31. I set up a autosweep to sweep through different tap values in order to tune the channel I notice that the results show negative eye height for many iterations but the corresponding BER is zero (see attached pdf) How can this be possible? Negative eye height means that the eye is closed. In this case we should expect maximum BER Please help me understand what is going on here Thanks, Ranjith3.8KViews0likes13CommentsRe: Quartus 23.3 transceiver toolkit fails to load using TCL
Hi @Kshitij_Intel , I was able to fix this issue. In "device_initialization" file, I replaced the string "AGFB027R24C2E2V" with the short version of itself i.e the string "AGFB027R24C" This fixed the issue Thanks, Ranjith3.2KViews0likes0CommentsRe: Quartus 23.3 transceiver toolkit fails to load using TCL
Hi @Kshitij_Intel, Yes. I did modify the TCL script and added it to the path shown in screenshot Also, attaching the TCL script here as a .txt file (unable to upload .tcl files here) Still the same error exists: Jan 17, 2024 1:28:43 PM com.altera.debug.core SEVERE: java.lang.Exception: can't read "device_path": no such variable while executing "string length $device_path" invoked from within "if { [string length $device_path] == 0 } { error "Specified $device_name device name, $device_die_name is not found. Please make sure the board is..." Thanks, Ranjith3.3KViews0likes0Comments