topic Need some info on Flashx in MQX Software Solutions

Need some info on Flashx

mayak — Mon, 19 Dec 2011 15:09:01 GMT

I have a requirement of formatting flash driver in MCF52259.

I'm using

//Enable cache

_io_ioctl(file_ptr1,FLASH_IOCTL_ENABLE_SECTOR_CACHE, NULL);

//format flash

ioctl(file_ptr2,IO_IOCTL_DEFAULT_FORMAT,NULL);

I'm able to format it but this mode is internally allocating RAM buffer of 4KB. how can i free this memory?

Re: Need some info on Flashx

c0170 — Thu, 22 Dec 2011 21:24:47 GMT

Hi mayak,

In the new 3.8 this is fixed. You can download 3.8 MQX from the website.

The IOCTL_ENABLE_SECTOR_CACHE should free the memory after it was allocated and used. If the FLASH_IOCTL_ENABLE_BUFFERING was also called before, then the memory is not deallocated.

Regards,

MartinK