Hardfault Handler : uint8 table larger than 211 field

[Yves Bernard]

Hello,

I am developing a basic application on the nrf52832. I am using the SDK14.2 and freertos (two very basic task).

I basically have a problem when I set a uint8 table larger than 211 fields (so from 212 byte, the mcu goes in the hardfault handler). I guess I am messing up with the memories but I'm not sure exactly how and I would like to understand. 

How is the maximum size of a table defined ? I am defining the table as a global variable. 

/* Table of 212 bytes leads to hardfault error */
#define table_length 212 
uint8 var[table_length];

Thank you for your help,

Yves 

[Yves Bernard]

Hi Einar,

Thanks for your anszer. So yeah you are right it was it was a stack overflow. My porting to nrf52 was wrong as I was trying to read 1024 byte using the nrf spi api and it suppors max 255 bytes per read. Also, the 1024 array was initiated in my read_spi function so in the stack, leading to the stack overflow.

Thank you,

Regards

Yves