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-rw-r--r--shared-bindings/nvm/ByteArray.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/shared-bindings/nvm/ByteArray.c b/shared-bindings/nvm/ByteArray.c
index f4e046378..56337df40 100644
--- a/shared-bindings/nvm/ByteArray.c
+++ b/shared-bindings/nvm/ByteArray.c
@@ -36,12 +36,13 @@
//| ================================================================================
//|
//| Non-volatile memory is available as a byte array that persists over reloads
-//| and power cycles.
+//| and power cycles. Each assignment causes an erase and write cycle so its recommended to assign
+//| all values to change at once.
//|
//| Usage::
//|
//| import microcontroller
-//| microcontroller.nvm[0] = 0xcc
+//| microcontroller.nvm[0:3] = b"\xcc\x10\x00"
//|
//| .. class:: ByteArray()