From e0345397f8ebaeadba3b72bafc734633cad3df0e Mon Sep 17 00:00:00 2001
From: yangjie11 <39754270+yangjie11@users.noreply.github.com>
Date: Tue, 23 Apr 2019 19:36:28 +0800
Subject: [PATCH] Update drv_pwm.c

---
 bsp/stm32/libraries/HAL_Drivers/drv_pwm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c b/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c
index 6f1c123a56..a6835e682f 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_pwm.c
@@ -415,13 +415,13 @@ static void pwm_get_channel(void)
     stm32_pwm_obj[PWM1_INDEX].channel |= 1 << 0;
 #endif
 #ifdef BSP_USING_PWM1_CH2
-    stm32_pwm_obj[PWM1_INDEX].channel |= 1 << 2;
+    stm32_pwm_obj[PWM1_INDEX].channel |= 1 << 1;
 #endif
 #ifdef BSP_USING_PWM1_CH3
-    stm32_pwm_obj[PWM1_INDEX].channel |= 1 << 3;
+    stm32_pwm_obj[PWM1_INDEX].channel |= 1 << 2;
 #endif
 #ifdef BSP_USING_PWM1_CH4
-    stm32_pwm_obj[PWM1_INDEX].channel |= 1 << 4;
+    stm32_pwm_obj[PWM1_INDEX].channel |= 1 << 3;
 #endif
 #ifdef BSP_USING_PWM2_CH1
     stm32_pwm_obj[PWM2_INDEX].channel |= 1 << 0;