From fc36e5939becd3ed452c057913345aba7e054721 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20St=C3=A4ck?= <stack@spotify.com>
Date: Fri, 9 Aug 2019 08:19:02 +0200
Subject: [PATCH] Add "magic" CRC value that skips verification (for testing
 purposes)

---
 NuEVI/settings.cpp | 2 +-
 NuEVI/settings.h   | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/NuEVI/settings.cpp b/NuEVI/settings.cpp
index 2403a97..0dbc1a8 100644
--- a/NuEVI/settings.cpp
+++ b/NuEVI/settings.cpp
@@ -310,7 +310,7 @@ bool receiveSysexSettings(const uint8_t* data, const uint16_t length) {
   uint32_t crc=midi32to28(crc32(data, checksum_pos));
   uint32_t crc_rcv;
   memcpy(&crc_rcv, data+checksum_pos, 4);
-  if(crc != crc_rcv) {
+  if(crc != crc_rcv && crc_rcv != NO_CHECKSUM) {
     configShowMessage("Invalid checksum");
     return false;
   }
diff --git a/NuEVI/settings.h b/NuEVI/settings.h
index 15fe0c6..32f64df 100644
--- a/NuEVI/settings.h
+++ b/NuEVI/settings.h
@@ -121,6 +121,7 @@
 #define TRILL3_INTERVAL_FACTORY 4
 #define DAC_MODE_FACTORY DAC_MODE_BREATH
 
+#define NO_CHECKSUM 0x7F007F00
 
 void readEEPROM(const bool factoryReset);
 void setBit(uint16_t &bitfield, const uint8_t pos, const uint16_t value);