HardFault in Function CRC_Lock

[jimmii]

Hi,

I'm using the STM32H750 Discoveryboard.

When running my code from TouchGFX Designer, everything works fine.

But when running with Keil IDE, something strange is happening:

-Flashing the application and loading with the debugger -> hard fault occurs in funtion crc_lock

If I unplug and replug the board, the application starts just fine. Only when connected to the debugger, the hard fault occurs.

Do you have any hints?

__HAL_RCC_CRC_CLK_ENABLE is being called, so that shouldn't be a problem

Thanks.

[Martin KJELDSEN]

What do you mean by "The examples" ?

/Martin

[jimmii]

The Application templates which come with the designer.

[Martin KJELDSEN]

@Community member​,

What goes wrong here is actually that the Device ID of the Chip is not read properly with a Keil project (in debug mode using some particular version of ST-Link,) and thus the lock defaults to checking a CRC on the wrong address.

Probably related to DBGMCU not being readable at all.

/Martin

[Martin KJELDSEN]

Just to rule it out: Please make sure that the CRC is actually activated.

[jimmii]

Yes it is activated. Think wouldn't work at all if it's deactivated.

[Martin KJELDSEN]

Can you read anything from DBGMCU at all? 0x5C001000

[Martin KJELDSEN]

The application templates contain no libraries or headerfiles - The application is bootstrapped by the particular verison of the designer you're using.

[jimmii]

Then what's the library called touchgfx_core.lib found in C:\TouchGFXProjects\I2CTouchGfx\Middlewares\ST\TouchGFX\touchgfx\lib\core\cortex_m7\Keil

[Martin KJELDSEN]

It's the library copied by the designer when you generated code. Coincidentally located in Middlewares/ST/TouchGFX/

/Martin

[jimmii]

Ok, that's what I mean by "is this library correct to use" in Keil?

Not that I'm using the wrong library...