explain how to keep schematics and board in sync

1 files changed, 11 insertions, 0 deletions

diff --git a/README.md b/README.md
index 7c43a84..4d354b9 100644
--- a/README.md
+++ b/README.md
@@ -6,3 +6,14 @@ Stick](http://stick.com).
 You will need the [gEDA programs](http://www.geda-project.org) to view and edit
 these files. The [PCB editor](http://pcb.geda-project.org) is required to edit
 the board.
+
+# Updating the board
+
+After changing any of the schematics, the board should be updated in
+the gschem directory with `gsch2pcb`.
+
+    gsch2pcb -d ~/.guix-profile/share/pcb/pcblib-newlib/geda/ project
+
+This will place any new components in a file `board.new.pcb` and
+generate a new netlist file `board.net`.  The new components and the
+netlist file can then be loaded into PCB from the File menu.