X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=decoders%2Fst25r39xx_spi%2F__init__.py;h=3803789eb22a7014a6ebd812700dbc420ddd00e0;hb=b46b88f37ac302c7e00c288e78dab05a2ac74328;hp=d02dd7dc84524d8908b72b42d0d3b2b2aecb33de;hpb=a43eba6af2ad18c7dc535f1c2b8764d13b5cd21a;p=libsigrokdecode.git

diff --git a/decoders/st25r39xx_spi/__init__.py b/decoders/st25r39xx_spi/__init__.py
index d02dd7d..3803789 100644
--- a/decoders/st25r39xx_spi/__init__.py
+++ b/decoders/st25r39xx_spi/__init__.py
@@ -18,8 +18,11 @@
 ##
 
 '''
-This decoder stacks on top of the 'spi' PD and decodes st25r3916 High performance NFC universal device and EMVCo reader
-(SPI mode) protocol.
+This decoder stacks on top of the SPI PD and decodes the st25r39xx High performance NFC universal device and EMVCo reader protocol (SPI mode).
+
+It has been successfully tested with the st25r3916, other chips of this family may or may not be fully supported but not been verified.
+
+Please note that the SPI interface uses clock polarity 0 and clock phase 1, which is not the default setting.
 
 Details:
 https://www.st.com/resource/en/datasheet/st25r3916.pdf