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jesd204/scripts: Helper procedure for TPL width calculation

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Laszlo Nagy 2021-02-18 13:45:32 +00:00 committed by Laszlo Nagy
parent 5dd9fd4832
commit cb8cf4b3d2
1 changed files with 21 additions and 0 deletions
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21
library/jesd204/scripts/jesd204.tcl
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@ -459,3 +459,24 @@ proc adi_tpl_jesd204_rx_create {ip_name num_of_lanes num_of_converters samples_p
return -options $resultoptions $resulttext
}
# Calculate Link Layer interface width towards Transport Layer
# TPL width must be set to an integer multiple of F
proc adi_jesd204_calc_tpl_width {link_datapath_width jesd_l jesd_m jesd_s jesd_np} {
set jesd_f [expr ($jesd_m*$jesd_s*$jesd_np)/(8*$jesd_l)]
# For F=3,6,12 get first pow 2 multiple of F greater than link_datapath_width
if {$jesd_f % 3 == 0} {
set np12_datapath_width $jesd_f
while {$np12_datapath_width < $link_datapath_width} {
set np12_datapath_width [expr 2*$np12_datapath_width]
}
return $np12_datapath_width
} else {
return [expr max($jesd_f,$link_datapath_width)]
}
}