将代码下载到art-pi上时出现报错，无法完成下载

ST-LINK SN  : 0666FF554957886687091322
ST-LINK FW  : V2J37M27
Board       : --
Voltage     : 3.28V
SWD freq    : 4000 KHz
Connect mode: Normal
Reset mode  : Software reset
Device ID   : 0x450
Revision ID : Rev V
Device name : STM32H7xx
Flash size  : 128 KBytes
Device type : MCU
Device CPU  : Cortex-M7
Memory Programming ...
Opening and parsing file: rtthread.elf
  File          : rtthread.elf
  Size          : 912392 Bytes
  Address       : 0x90000000 
Erasing memory corresponding to segment 0:
Download in Progress:
Error: failed to download Segment[0]
Error: failed to download the File
Error: Unable to reset MCU!
RUNNING Program ... 
  Address:      : 0x8000000
Warning: The core is locked up
Start operation achieved successfully
执行完毕, 耗时：190ms.