From 381c24bd552d50c5a2000a4d5e5d129a56d299c9 Mon Sep 17 00:00:00 2001
From: Sami Korhonen <samik.korhonen@gmail.com>
Date: Sun, 26 Nov 2017 14:44:26 +0200
Subject: [PATCH] Fix F7 DMAR N-channel output init

---
 src/main/drivers/pwm_output_dshot_hal.c | 40 +++++++++++++++++--------
 1 file changed, 27 insertions(+), 13 deletions(-)

diff --git a/src/main/drivers/pwm_output_dshot_hal.c b/src/main/drivers/pwm_output_dshot_hal.c
index 868dc96c3..a440e4065 100644
--- a/src/main/drivers/pwm_output_dshot_hal.c
+++ b/src/main/drivers/pwm_output_dshot_hal.c
@@ -235,19 +235,33 @@ void pwmDshotMotorHardwareConfig(const timerHardware_t *timerHardware, uint8_t m
 #ifdef USE_DSHOT_DMAR
     /* Enable the Output compare channel */
     uint32_t channels = 0;
-    switch(motor->timerHardware->channel) {
-    case TIM_CHANNEL_1:
-        channels = LL_TIM_CHANNEL_CH1;
-        break;
-    case TIM_CHANNEL_2:
-        channels = LL_TIM_CHANNEL_CH2;
-        break;
-    case TIM_CHANNEL_3:
-        channels = LL_TIM_CHANNEL_CH3;
-        break;
-    case TIM_CHANNEL_4:
-        channels = LL_TIM_CHANNEL_CH4;
-        break;
+    if(output & TIMER_OUTPUT_N_CHANNEL) {
+        switch(motor->timerHardware->channel) {
+        case TIM_CHANNEL_1:
+            channels = LL_TIM_CHANNEL_CH1N;
+            break;
+        case TIM_CHANNEL_2:
+            channels = LL_TIM_CHANNEL_CH2N;
+            break;
+        case TIM_CHANNEL_3:
+            channels = LL_TIM_CHANNEL_CH3N;
+            break;
+        }
+    } else {
+        switch(motor->timerHardware->channel) {
+        case TIM_CHANNEL_1:
+            channels = LL_TIM_CHANNEL_CH1;
+            break;
+        case TIM_CHANNEL_2:
+            channels = LL_TIM_CHANNEL_CH2;
+            break;
+        case TIM_CHANNEL_3:
+            channels = LL_TIM_CHANNEL_CH3;
+            break;
+        case TIM_CHANNEL_4:
+            channels = LL_TIM_CHANNEL_CH4;
+            break;
+        }
     }
     motor->timerIndex = timerIndex;
     LL_TIM_CC_EnableChannel(motor->timerHardware->tim, channels);