From 4f10565f820ec835843ca1d1c6eed826f4cbfbe2 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Sun, 14 Mar 2021 09:24:32 +1100
Subject: [PATCH] HAL_ChibiOS: fixed CANFD build on H7

---
 libraries/AP_HAL_ChibiOS/CANFDIface.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libraries/AP_HAL_ChibiOS/CANFDIface.cpp b/libraries/AP_HAL_ChibiOS/CANFDIface.cpp
index cb6743efc1..1e8121214a 100644
--- a/libraries/AP_HAL_ChibiOS/CANFDIface.cpp
+++ b/libraries/AP_HAL_ChibiOS/CANFDIface.cpp
@@ -573,10 +573,12 @@ bool CANIface::init(const uint32_t bitrate, const OperatingMode mode)
             nvicEnableVector(FDCAN2_IT0_IRQn, CORTEX_MAX_KERNEL_PRIORITY);
             nvicEnableVector(FDCAN2_IT1_IRQn, CORTEX_MAX_KERNEL_PRIORITY);
             break;
+#ifdef FDCAN3_IT0_IRQn
         case 2:
             nvicEnableVector(FDCAN3_IT0_IRQn, CORTEX_MAX_KERNEL_PRIORITY);
             nvicEnableVector(FDCAN3_IT1_IRQn, CORTEX_MAX_KERNEL_PRIORITY);
             break;
+#endif
         }
         irq_init_ = true;
     }