create bus labels from CSV file

It should be fairly straightforward to write some Skill code to do this.  You'll probably need to do a little processing on each bus label once you've read it in to separate out the bus name from the bits, assuming it's all csv.  If each csv line reads "busx,1,0,0.1,0,0,0" after you pull in from the file, it would be something like:

data = <function to read the file>

allBusses = foreach(mapcar datum data
                       busData = parseString(datum ",")
                       busName = car(busData)
                       busBits = buildString(cdr(busData ","))
)

That will give you a list containing each bus in two parts:

'(
    '("busx" "1,0,1,0,0,0")
    '("busy" "0,1,1,0,0,1")
    etc.
)

Then step through each one to find the appropriate wire on your schematic and add the label.  Getting the wire that connects to a pin rather than a random wire on each net will give a neater result.  

foreach(bus allBusses
    <find the pin based on the name in car(bus)>
    myWire = <find the wire that connects to the pin>
    myCoord = <get your coordinate based on the wire>
    myLabel = dbCreateLabel(cellId "device" myCoord cadr(bus) "lowerLeft" "R0" "stick" textSize)
    schGlueLabel(myLabel myWire)
)

Label attachment is done through parent/child connections in a schematic so you can attach the net that way if you want to stick with db functions.

Once you've done all this, you'll need to add tieHi and tieLo cells to your schematic and label the wires attached to them as 1 and 0.

Your proposed schematic will work electrically but it's going to cause you problems in the layout.  If you connect all the 1 and 0 bits together as single nets, you'll end up with two wires with over 600 connections that each hang off one resistor.  You're much better off creating local 1 and 0 connections for each bus and tying them off separately.  

Given this is for trim, you might also consider adding a tieHi or tieLo connection for each bit of every bus.  That would allow you to adjust the trim based on post-layout extraction simply by flipping the tie cells from one to the other.  

- Tim

It should be fairly straightforward to write some Skill code to do this.  You'll probably need to do a little processing on each bus label once you've read it in to separate out the bus name from the bits, assuming it's all csv.  If each csv line reads "busx,1,0,0.1,0,0,0" after you pull in from the file, it would be something like:

data = <function to read the file>

allBusses = foreach(mapcar datum data
                       busData = parseString(datum ",")
                       busName = car(busData)
                       busBits = buildString(cdr(busData ","))
)

That will give you a list containing each bus in two parts:

'(
    '("busx" "1,0,1,0,0,0")
    '("busy" "0,1,1,0,0,1")
    etc.
)

Then step through each one to find the appropriate wire on your schematic and add the label.  Getting the wire that connects to a pin rather than a random wire on each net will give a neater result.  

foreach(bus allBusses
    <find the pin based on the name in car(bus)>
    myWire = <find the wire that connects to the pin>
    myCoord = <get your coordinate based on the wire>
    myLabel = dbCreateLabel(cellId "device" myCoord cadr(bus) "lowerLeft" "R0" "stick" textSize)
    schGlueLabel(myLabel myWire)
)

Label attachment is done through parent/child connections in a schematic so you can attach the net that way if you want to stick with db functions.

Once you've done all this, you'll need to add tieHi and tieLo cells to your schematic and label the wires attached to them as 1 and 0.

Your proposed schematic will work electrically but it's going to cause you problems in the layout.  If you connect all the 1 and 0 bits together as single nets, you'll end up with two wires with over 600 connections that each hang off one resistor.  You're much better off creating local 1 and 0 connections for each bus and tying them off separately.  

Given this is for trim, you might also consider adding a tieHi or tieLo connection for each bit of every bus.  That would allow you to adjust the trim based on post-layout extraction simply by flipping the tie cells from one to the other.  

- Tim

Actually, this bit:

allBusses = foreach(mapcar datum data
                       busData = parseString(datum ",")
                       busName = car(busData)
                       busBits = buildString(cdr(busData ","))
)

Should read:

allBusses = foreach(mapcar datum data
                        list(car(parseString(datum ",")) buildString(cdr(parseString(datum ","))))