Question
STM32L021D4P7 this MCU not able to dump the code
I have taken one dot board a placed the MCU (TSSOP14) STM32L021D4P7 wired with STLINK V2 programmer , Boot0 pin to pull up and pull down option with jumper wire , NRST pin also same pull up 10kohm and jumper wire to pull down to ground. In STM32 CUBE programmer latest version i am using STM32CubeProgrammer 2.23.0 , chip is only detecting if under hot plug mode , under reset mode it not working , its first time from factory its programming through SWDIO /SWCLK VCC and VSS . After detecting the hex file if a loaded its showing internal memory [0 45] failed to erase, so RDP - i kept to AA it in STMcube programmer after that if i click file for programming in GUI its crashing the tool. Kindly give help to program this IC.
