docs: Fix frequency info for DAC.triangle.

73533247 · Damien George · bf19541f · 73533247
Commit 73533247 authored Jan 20, 2015 by Damien George
--- a/docs/library/pyb.DAC.rst
+++ b/docs/library/pyb.DAC.rst
@@ -53,7 +53,7 @@ Methods

   Generate a triangle wave.  The value on the DAC output changes at
   the given frequency, and the frequence of the repeating triangle wave
-   itself is 256 (or 1024, need to check) times smaller.
+   itself is 2048 times smaller.

 .. method:: dac.write(value)