From b1c084d92f4e495dbb92ab9a7f387f8c8d14dbc0 Mon Sep 17 00:00:00 2001
From: dricker <dirk.ricker@surepointag.com>
Date: Mon, 21 Aug 2023 11:32:39 -0500
Subject: [PATCH] Fixed filterExtended() issue, not calculating mask correctly

---
 src/ESP32SJA1000.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ESP32SJA1000.cpp b/src/ESP32SJA1000.cpp
index 309e030..affdf2a 100644
--- a/src/ESP32SJA1000.cpp
+++ b/src/ESP32SJA1000.cpp
@@ -297,7 +297,7 @@ int ESP32SJA1000Class::filter(int id, int mask)
 int ESP32SJA1000Class::filterExtended(long id, long mask)
 {
   id &= 0x1FFFFFFF;
-  mask &= ~(mask & 0x1FFFFFFF);
+  mask = ~(mask & 0x1FFFFFFF);
 
   modifyRegister(REG_MOD, 0x17, 0x01); // reset