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HOcg's avatar
HOcg
Icon for New Contributor rankNew Contributor
3 years ago
Solved

Subsector erase with Generic QUAD SPI controller II

I am trying to use the Generic QUAD SPI controller II with a MT25QU01G QSPI memory. In this regard, according to the memory manual, I can command subsector erases of 4 KB. Does the HAL of this IP c...
tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi


In the Generic QUAD SPI Controller II, you do not need to worry about the sector size.

You will just need to indicate the block that you would like to erase and it will determine the size of the block to be erased.


alt_qspi_controller2_erase_block(alt_flash_dev *flash_info, int block_offset)



Regards

Jingyang, Teh


  • HOcg's avatar
    HOcg
    Icon for New Contributor rankNew Contributor
    3 years ago

    Hi Jingyang,

    Thank you for your answer, but my question here is if I can erase just part of a block. According to the comment of the function alt_qspi_controller2_erase_block(alt_flash_dev *flash_info, int block_offset):

    /* ...
    * Arguments:
    * - *flash_info: Pointer to QSPI flash device structure.
    * - block_offset: byte-addressed offset, from start of flash, of the sector to be erased

    ...*/

    Thus from here I understand that I can only erase the memory in sectors. But I need to erase only a subsector within a given sector.