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SOtsr's avatar
SOtsr
Icon for New Contributor rankNew Contributor
6 years ago

Generic Quad SPI for MT25QL512ABB8ESF

Hi all i'm trying to interface the Micron MT25QL512 Flash device by using the Altera Generic Quad SPI controller. I'm using the Cyclone V SOC. When i try to access the Memory Avalon slave it seems ...
JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

May I know what is the I/O mode used in your IP? Have tried to change the I/O mode of the IP?

Have you tried to performed Sector Protect to make sure that the sector protect is not enabled?

Have you tried to read the "FLASH_RD_STATUS" from the IP after performing sector erase?

What is the IP that you are using as the Avalon Master? Have you tried to use SignalTap to tap the Generic Quad SPI Avalon interface to see if you are having the correct timing?

  • SOtsr's avatar
    SOtsr
    Icon for New Contributor rankNew Contributor
    6 years ago
    Hi i work in standard I/O mode (not QSPI) didnt try to change to QSPI yet... yes i tried to perform sector protect but still i can write to the sector i "protected" the RD_STATUS register after power up is 0x2. after any action i make (erase or write protect) the register value is 0x0. the master is the HPS H2F bridge. i work with the UBOOT. also, i run the system with signal tap. the SPI interface is working fine. the avalon interface seems to be looking good also...