1 files changed, 6 insertions, 0 deletions
diff --git a/Projects/P-NUCLEO-WB55.USBDongle/Applications/Thread/Thread_Coap_DataTransfer/Core/Src/main.c b/Projects/P-NUCLEO-WB55.USBDongle/Applications/Thread/Thread_Coap_DataTransfer/Core/Src/main.c
index 9f1faa6ad..501af6260 100644
--- a/Projects/P-NUCLEO-WB55.USBDongle/Applications/Thread/Thread_Coap_DataTransfer/Core/Src/main.c
+++ b/Projects/P-NUCLEO-WB55.USBDongle/Applications/Thread/Thread_Coap_DataTransfer/Core/Src/main.c
@@ -64,6 +64,12 @@ static void Init_Exti( void );
 
 int main( void )
 {
+  /**
+   * The OPTVERR flag is wrongly set at power on
+   * It shall be cleared before using any HAL_FLASH_xxx() api
+   */
+  __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_OPTVERR);
+
   HAL_Init();
 
   Reset_Device();