diff --git a/targets/TARGET_STM/TARGET_STM32G4/todo.txt b/targets/TARGET_STM/TARGET_STM32G4/todo.txt
deleted file mode 100644
index b336d743fe..0000000000
--- a/targets/TARGET_STM/TARGET_STM32G4/todo.txt
+++ /dev/null
@@ -1 +0,0 @@
-Still to be added: CAN, USBDEVICE, QSPI, CRC(?), TRNG
diff --git a/targets/TARGET_STM/TARGET_STM32G4/us_ticker_data.h b/targets/TARGET_STM/TARGET_STM32G4/us_ticker_data.h
index 526a12d274..928d55ee27 100644
--- a/targets/TARGET_STM/TARGET_STM32G4/us_ticker_data.h
+++ b/targets/TARGET_STM/TARGET_STM32G4/us_ticker_data.h
@@ -23,13 +23,13 @@
 #include "stm32g4xx_ll_tim.h"
 #include "cmsis_nvic.h"
    
-#define TIM_MST      TIM2
-#define TIM_MST_IRQ  TIM2_IRQn
-#define TIM_MST_RCC  __TIM2_CLK_ENABLE()
-#define TIM_MST_DBGMCU_FREEZE  __HAL_DBGMCU_FREEZE_TIM2()
+#define TIM_MST      TIM5
+#define TIM_MST_IRQ  TIM5_IRQn
+#define TIM_MST_RCC  __TIM5_CLK_ENABLE()
+#define TIM_MST_DBGMCU_FREEZE  __HAL_DBGMCU_FREEZE_TIM5()
 
-#define TIM_MST_RESET_ON   __TIM2_FORCE_RESET()
-#define TIM_MST_RESET_OFF  __TIM2_RELEASE_RESET()
+#define TIM_MST_RESET_ON   __TIM5_FORCE_RESET()
+#define TIM_MST_RESET_OFF  __TIM5_RELEASE_RESET()
 
 #define TIM_MST_BIT_WIDTH  32 // 16 or 32