topic Re: HardFault Error While Init Clock in S32K

HardFault Error While Init Clock

daoph — Tue, 11 Nov 2025 03:14:20 GMT

Hi,

I am facing a problem while configuring the S32K344. Without I2C MCAL configuration, I can go to debug mode. However, when I add I2C MCAL configuration, I got the following error:

MemManage: The processor attempted an instruction fetch from a location that does not permit execution.

while Mcu_InitClock(McuClockSettingConfig_0) was called. Could you please help? I attached the project here.

I'm using S32K3X4EVB

Re: HardFault Error While Init Clock

Robin_Shen — Tue, 11 Nov 2025 04:54:38 GMT

Please configure the McuPeripheral -> Peripheral Clock Enable

Hope it helps.

Best Regards,
Robin
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Re: HardFault Error While Init Clock

daoph — Tue, 11 Nov 2025 05:12:22 GMT

Thanks for your reply,

I already enable the PLL & I2C peripheral clock, but the problem still persist.

Re: HardFault Error While Init Clock

Robin_Shen — Mon, 08 Dec 2025 03:40:46 GMT

Thank you for your patience.
Here is the reply from Software Team:

I checked the example after adding I2C, I see that the section int_sram_no_cacheable was overflowed Because I2C used quite larger spaces in that section.

The solution is that reduces using int_sram_no_cacheable

E.g: in the file ethif_port.c, you can also remove the statement: " __attribute__ ((section (".int_sram_no_cacheable")))" as below

__attribute__ ((section (".int_sram_no_cacheable")))

VAR_ALIGN(uint8 ethif_DataBuffer[ETH_RXBD_NUM * ETH_43_ETH_MAX_RXBUFFLEN_SUPPORTED], 64);

BTW, Please remove the preprocessor: "D_CACHE_ENABLE" if ping cannot work