Stlink烧录显示如下：可以编译但下载报错，试过下载最新固件，重连stlink依旧没有解决
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STM32CubeProgrammer v2.8.0
ST-LINK SN : 37FF71064E573436C3531143
ST-LINK FW : V2J46S7
Board : --
Voltage : 3.30V
SWD freq : 4000 KHz
Connect mode: Normal
Reset mode : Software reset
Error: Unable to list supported devices
Error: Cannot identify the device