Interrupt driven Serial I/O, msg-fifo, do_msg..., debug msgs

[z180-stamp.git] / libopencm3

diff --git a/libopencm3 b/libopencm3
index 2faa482669cb5984a87cf2b17bdbf4c8b83c23a0..69726cd1a5baf455d247d3e2469e53cd26856c28 160000 (submodule)
--- a/libopencm3
+++ b/libopencm3
@@ -1 +1 @@
-Subproject commit 2faa482669cb5984a87cf2b17bdbf4c8b83c23a0
+Subproject commit 69726cd1a5baf455d247d3e2469e53cd26856c28