diff --git a/ports/stm32/adc.c b/ports/stm32/adc.c
index 1d4beafa45..c5ca6306e4 100644
--- a/ports/stm32/adc.c
+++ b/ports/stm32/adc.c
@@ -146,6 +146,7 @@
 #define VBAT_DIV (4)
 #elif defined(STM32F722xx) || defined(STM32F723xx) || \
     defined(STM32F732xx) || defined(STM32F733xx) || \
+    defined(STM32F745xx) || \
     defined(STM32F746xx) || defined(STM32F765xx) || \
     defined(STM32F767xx) || defined(STM32F769xx)
 #define VBAT_DIV (4)
diff --git a/ports/stm32/pyb_i2c.c b/ports/stm32/pyb_i2c.c
index 70a8e9f091..5cd7c0c8b0 100644
--- a/ports/stm32/pyb_i2c.c
+++ b/ports/stm32/pyb_i2c.c
@@ -137,7 +137,7 @@ const pyb_i2c_obj_t pyb_i2c_obj[] = {
 
 #define PYB_I2C_TIMINGR (1)
 
-#if defined(STM32F746xx)
+#if defined(STM32F745xx) || defined(STM32F746xx)
 
 // The value 0x40912732 was obtained from the DISCOVERY_I2Cx_TIMING constant
 // defined in the STM32F7Cube file Drivers/BSP/STM32F746G-Discovery/stm32f7456g_discovery.h