2019-05-21 07:22 PM
I erased on board stlink firmware by mistake.
I got STLinkV2.J16.S4 bin file from a web site . and downloaded it into on board stlink with STM32 ST-LINK Utility.
and then upgraded STLinkV2.J34.S4 to on board stlink by using ST-LinkUpgrade tool
but L475E board doesn't work properly..