STM32L072CZY6是否可以多次擦写？

支持。FLASH一般寿命为10万次。通过串口、JTAG口进行程序烧写。可以通过
stm32cubeProgrammer、FLASHLOADER、IDE通过JTAG口进行程序烧写。如果是购买的成熟产品，可能会开启读写保护，需要通过stm32cubeProgrammer进行擦除操作后，解除读写保护。

STM32L072CZY6 is a microcontroller that supports multiple erase and write cycles. It has a Flash memory with a guaranteed minimum number of erase/write cycles of 10,000 in the industrial temperature range.

Regarding the firmware version based on D/C=1937, it is not possible to determine the specific firmware version without more information. D/C (Die revision and Wafer number) is a unique identifier used by manufacturers to track the die and wafer of a semiconductor device, and it does not directly indicate the firmware version.

For erasing the flash memory and programming a new firmware, STMicroelectronics provides various tools, including STM32CubeProgrammer and ST-LINK Utility. These tools offer an intuitive GUI interface for erasing, programming, and verifying the flash memory of STM32 microcontrollers.

The exact steps for erasing and programming the STM32L072CZY6 using STMicroelectronics' tools will depend on the specific tool being used. However, in general, the process involves connecting the SWD or JTAG interface of the microcontroller to a programmer/debugger tool (such as an ST-LINK probe), selecting the target device and connection interface in the programming software, erasing the flash memory, and then programming the new firmware by selecting the firmware file and initiating the programming process. It is recommended to refer to the documentation and user guides provided by STMicroelectronics for detailed instructions on using the specific programming tool.