diff --git a/firmware/boards/f1_rev2/board.h b/firmware/boards/f1_rev2/board.h
index 0608f9c..fcedb1b 100644
--- a/firmware/boards/f1_rev2/board.h
+++ b/firmware/boards/f1_rev2/board.h
@@ -112,7 +112,7 @@
  * PB15 - PWMout1                   (output pushpull, alternate, 2 Mhz).
  */
 #define VAL_GPIOBCRL            0x8A888200      /*  PB7...PB0 */
-#define VAL_GPIOBCRH            0xBB243488      /* PB15...PB8 */
+#define VAL_GPIOBCRH            0xAA243488      /* PB15...PB8 */
 #define VAL_GPIOBODR            0x0000FFFF
 
 /*
diff --git a/firmware/boards/f1_rev2/io/io_pins.h b/firmware/boards/f1_rev2/io/io_pins.h
index 8006440..4d8d35f 100644
--- a/firmware/boards/f1_rev2/io/io_pins.h
+++ b/firmware/boards/f1_rev2/io/io_pins.h
@@ -44,6 +44,13 @@
 // PB15 - TIM1_CH3N
 #define AUXOUT_DAC_PWM_CHANNEL_1    2
 
+// TIM1 - DAC for AUX outputs
+#define AUXOUT_DAC_PWM_DEVICE       PWMD1
+// PB14 - TIM1_CH2N
+#define AUXOUT_DAC_PWM_CHANNEL_0    1
+// PB15 - TIM1_CH3N
+#define AUXOUT_DAC_PWM_CHANNEL_1    2
+
 #define ID_SEL1_PORT                GPIOC
 #define ID_SEL1_PIN                 13