+/* MAX6691 thermistor chip */
+#define HAS_MAX6691 1
+#define AO_MAX6691_GPIO (&stm_gpiob)
+#define AO_MAX6691_PIN 3
+#define AO_MAX6691_TIMER (&stm_tim2)
+#define AO_MAX6691_TIMER_ENABLE STM_RCC_APB1ENR_TIM2EN
+#define AO_MAX6691_CH 2
+#define AO_MAX6691_DMA STM_DMA_INDEX(7)
+