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error 65

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Dear All,
my first program for stm32f030x (turn on a LED)is compiled without error.
it didn't work so I try to debug see this error:
*** error 65: access violation at 0x0000000C : no 'read' permission

I check Options->linker
here is:
R/O base: 0x08000000
R/W base: 0x20000000
which seems okay.

I checked options target:
IROM1: start: 0x8000000 size: 0x4000
IRAM1: start: 0x20000000 size: 0x1000

No help!
I found below in this forum: RE: *** error 65: access violation at 0x40023800 : no 'read' permission
The problem is that the STM32F4 series is not fully simulated and therefore any peripheral access causes an access violation.

any solutions ???

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