Flash Download Infomation

C:\CooCox\CoIDE_V2Beta>"C:/CooCox/CoIDE_V2Beta/bin\coflash.exe" 
erase STM32F429ZI 
--adapter-name=ST-Link 
--port=SWD 
--adapter-clk=1000000 
--driver=
  "C:\Users\m_fujii\AppData\Roaming\CooCox\CoIDE\config\flash\CooCox-Flash\
   CoIDE_STM32F4xx_2048K\STM32F4xx_2048.elf"  

Chip Erase:	 Failed
Error: Flash driver function execute timeout