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for instance i:gpio[7:0] will be expanded to i:gpio7,i:gpio6,i:gpio5,i:gpio4,i:gpio3,i:gpio2,i:gpio1,i:gpio0 and then starts over at i:gpio7
| top to bottom | bottom to top |
|---|---|
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Comma Separated Ranges
Multiple ranged sigNames can be separated by commas,
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Here is a table of all the alternations and the resulting sigNames in sequence
alternation value | alternation value | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| seq# | lt | mid | rt | sigName | seq# | lt | mid | rt | signame |
| 1 | sw0 | 3 | p | pcie_sw0_dq3p | 9 | sw1 | 3 | p | pcie_sw1_dq3p |
| 2 | sw0 | 3 | n | pcie_sw0_dq3n | 10 | sw1 | 3 | n | pcie_sw1_dq3p |
| 3 | sw0 | 2 | p | pcie_sw0_dq2n | 11 | sw1 | 2 | p | pcie_sw1_dq2p |
| 4 | sw0 | 2 | n | pcie_sw0_dq2p | 12 | sw1 | 2 | n | pcie_sw1_dq2p |
| 5 | sw0 | 1 | p | pcie_sw0_dq1n | 13 | sw1 | 1 | p | pcie_sw1_dq1p |
| 6 | sw0 | 1 | n | pcie_sw0_dq1p | 14 | sw1 | 1 | n | pcie_sw1_dq1p |
| 7 | sw0 | 0 | p | pcie_sw0_dq0n | 15 | sw1 | 0 | p | pcie_sw1_dq0p |
| 8 | sw0 | 0 | n | pcie_sw0_dq0p | 16 | sw1 | 0 | n | pcie_sw1_dq0p |
Interleaving Busses of Signals using Alternation with inc_dec operators
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| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
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#!/usr/bin/perl use strict; use warnings; my $expString=""; #you need to create code that adds comma separated signal names to the $expString variable #note that strict is enforced so you need to declare your variables with 'my' #Insert code here #End insert code print "\$expString=$expString\n"; #this needs to be the last thing you do in this code $expString=$expString; |
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| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
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#!/usr/bin/perl
use strict;
use warnings;
my $expString="";
#you need to create code that adds comma separated signal names to the $expString variable
#note that strict is enforced so you need to declare your variables with 'my'
#Insert code here
foreach my $i (0..3){
foreach my $j (0..1){
foreach my $pn (qw(p n)){
$expString.="I:pcie_sw" . $j ."_rx_" .${i} .${pn}. ",";
}
}
}
#End insert code
print "\$expString=$expString\n";
#this needs to be the last thing you do in this code
$expString=$expString;
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