From dfe73a063d5a38745e314120ce1b28008b719481 Mon Sep 17 00:00:00 2001
From: Hierophect <hierophect@gmail.com>
Date: Tue, 5 Nov 2019 10:50:57 -0500
Subject: [PATCH] Fix error that would carry past python exception

---
 ports/stm32f4/common-hal/analogio/AnalogOut.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ports/stm32f4/common-hal/analogio/AnalogOut.c b/ports/stm32f4/common-hal/analogio/AnalogOut.c
index f38c86274e..79ced0492f 100644
--- a/ports/stm32f4/common-hal/analogio/AnalogOut.c
+++ b/ports/stm32f4/common-hal/analogio/AnalogOut.c
@@ -60,7 +60,6 @@ void common_hal_analogio_analogout_construct(analogio_analogout_obj_t* self,
     } else {
         mp_raise_ValueError(translate("Invalid DAC pin supplied"));
     }
-    dac_on[self->dac_index] = true;
 
     //Only init if the shared DAC is empty or reset
     if (handle.Instance == NULL || handle.State == HAL_DAC_STATE_RESET) {
@@ -85,6 +84,7 @@ void common_hal_analogio_analogout_construct(analogio_analogout_obj_t* self,
         mp_raise_ValueError(translate("DAC Channel Init Error"));
     }
 
+    dac_on[self->dac_index] = true;
     self->pin = pin;
     claim_pin(pin);
     #endif