From a125228d1fd1944bff85f15dfea205c70c256493 Mon Sep 17 00:00:00 2001
From: Petr Ledvina <ledvinap@gmail.com>
Date: Thu, 26 Mar 2015 18:07:18 +0100
Subject: [PATCH] Fix PPM in TIM1

---
 src/main/drivers/timer.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/main/drivers/timer.c b/src/main/drivers/timer.c
index f17c54f21..7ad90c065 100644
--- a/src/main/drivers/timer.c
+++ b/src/main/drivers/timer.c
@@ -383,6 +383,24 @@ void timerConfigure(const timerHardware_t *timerHardwarePtr, uint16_t period, ui
     configTimeBase(timerHardwarePtr->tim, period, mhz);
     TIM_Cmd(timerHardwarePtr->tim, ENABLE);
     timerNVICConfigure(timerHardwarePtr->irq);
+    // HACK - enable second IRQ on timers that need it
+    switch(timerHardwarePtr->irq) {
+#if defined(STM32F10X)
+    case TIM1_CC_IRQn:
+        timerNVICConfigure(TIM1_UP_IRQn);
+        break;
+#endif
+#ifdef STM32F303xC
+    case TIM1_CC_IRQn:
+        timerNVICConfigure(TIM1_UP_TIM16_IRQn);
+        break;
+#endif
+#if defined(STM32F10X_XL)
+    case TIM8_CC_IRQn:
+        timerNVICConfigure(TIM8_UP_IRQn);
+        break;
+#endif
+    }
 }
 
 // allocate and configure timer channel. Timer priority is set to highest priority of its channels
-- 
2.11.4.GIT