From 20601bc5e772ad461d062f156ca70a34ee426b21 Mon Sep 17 00:00:00 2001 From: PaulZC Date: Mon, 15 Aug 2022 19:00:11 +0100 Subject: [PATCH] Update ex_14_Wait_For_NDEF_Write.md --- examples/docs/ex_14_Wait_For_NDEF_Write.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/examples/docs/ex_14_Wait_For_NDEF_Write.md b/examples/docs/ex_14_Wait_For_NDEF_Write.md index 16452a5..02fff14 100644 --- a/examples/docs/ex_14_Wait_For_NDEF_Write.md +++ b/examples/docs/ex_14_Wait_For_NDEF_Write.md @@ -83,6 +83,9 @@ This prevents _most_ App confusion. You may still see occasions where the App th a new RF transaction is attempted while the tag is already performing an I2C transaction (memory read). Once the RF read-modify-write is underway, the two second timer prevents the next I2C transaction from interfering with it. +**It also helps a lot if you bring your phone near the tag first _and then_ press the "Write to Tag" button.** Bringing your phone near the tag generates a field. +The code then goes into its two second timeout and isn't accessing I2C when the RF write starts. + ## Writing an Empty NDEF Record Please see the previous example for details.