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-rw-r--r--docs/library/pyb.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/library/pyb.rst b/docs/library/pyb.rst
index addcd20a91..321be3c52f 100644
--- a/docs/library/pyb.rst
+++ b/docs/library/pyb.rst
@@ -126,7 +126,7 @@ Power related functions
- pclk2: frequency of the APB2 bus
If given any arguments then the function sets the frequency of the CPU,
- and the busses if additional arguments are given. Frequencies are given in
+ and the buses if additional arguments are given. Frequencies are given in
Hz. Eg freq(120000000) sets sysclk (the CPU frequency) to 120MHz. Note that
not all values are supported and the largest supported frequency not greater
than the given value will be selected.