HYPER_RETIMER Error

Yes, Even I believe there is something wrong with HYPER_RETIMER.

I have used this assignment is qsf file

set_global_assignment -name HYPER_RETIMER ON

set_global_assignment -name HYPER_RETIMER_FAST_FORWARD ON

I even tried

set_global_assignment -name HYPER_RETIMER OFF

set_global_assignment -name HYPER_RETIMER_FAST_FORWARD OFF

But both didn't work

Yes correct, It has to be FLOW_ENABLE_HYPER_RETIMER_FAST_FORWARD.

I tried to enable and disable HYPER_RETIMER using GUI, but till it gives same error.

The error is inside a .sdc of DDR3 controller in qsys block.

Error (332000): ERROR: Assignment HYPER_RETIMER has multiple values. Use the "get_all_global_assignments" command to get all values or use the "get_global_assignment -front" command to get the first value.

while executing

"get_global_assignment -name "HYPER_RETIMER""

(procedure "altera_emif_arch_nf_160_pktenta_get_ddr..." line 9)

invoked from within

"altera_emif_arch_nf_160_pktenta_get_ddr_pins $instname allpins var"

(procedure "altera_emif_arch_nf_160_pktenta_initial..." line 15)

invoked from within

"altera_emif_arch_nf_160_pktenta_initialize_ddr_db altera_emif_arch_nf_160_pktenta_ddr_db var"

invoked from within

"if { ! [ info exists altera_emif_arch_nf_160_pktenta_sdc_cache ] } {

altera_emif_arch_nf_160_pktenta_init..."

(file "../altera_emif_arch_nf_160/synth/altera_emif_arch_nf_160_pktenta.sdc" line 122)

And, I'm using Arria 10 FPGA

Standard or pro edition? Pro 16.0 doesn't include the Hyper Retimer.

You also need additional licensing, I believe.

I'm using 16.0 Standard edition.

I don't think it's licensing issue because when I gave a try with standalone DDR project there was no error.

But with some other block integrated, this error comes up.

Hello Ak_M,

You have probably found a solution... But I ran into the same issue (also DDR3/Arria10). Commenting part of the generated script instance_name\altera_emif_arch_nf_160\synth\instance_name_altera_emif_arch_nf_160_wyghoeq_pin_map.tcl as follows solved the problem:

# with the hyper-retimer, the tdb netlist may contain the full set of routing nodes, so we need

# to search deeper

# if {[expr [get_global_assignment -name "HYPER_RETIMER"] == "ON"]} {

# set var(pll_inclock_search_depth) 250

# set var(pll_outclock_search_depth) 250

# set var(pll_vcoclock_search_depth) 50

# } else {

set var(pll_inclock_search_depth) 30

set var(pll_outclock_search_depth) 20

set var(pll_vcoclock_search_depth) 5

# }

Of course, this is not ideal as this is a file which gets regenerated. However, from Q16.1 this seems to be fixed.