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Altera_Forum's avatar
Altera_Forum
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14 years ago

ALTASMI_PARALLEL - erase fails

Hi,

I'm using the ALTASMI_PARALLEL Megafuncion with a Cyclone III and EPCS16 flash memory.

On some production boards the ALTASMI indicates that a sector erase has been successful but in fact the sector has not been erased.

The clock is well within specifications and I have implemented the required two clock delay.

Any suggestions please?

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Sector could be protected. Check the illegal_erase status of ALTASMI_PARALLEL, if set it will indicate that sector is protected.