How can Flash running at 96MHZ

tiffanychen · ‎2008-03-27

Posted on March 28, 2008 at 05:09

tiffanychen · ‎2011-05-17

Posted on May 17, 2011 at 09:50

As title,

I use STR911FAM44X6, when I run flash up than 48MHZ the system hang...

So I only can run it on 48MHZ...

If some one knows solution, please kindly give me some advices...

Thank you very much

kais · ‎2011-05-17

Posted on May 17, 2011 at 09:50

Dear tiffanychen,

Please verify the Flash wait states insertion when running above 48MHZ.

For example when running @96MHZ, Insert 2 Wait States for read:

FMI_Config(FMI_READ_WAIT_STATE_2, FMI_WRITE_WAIT_STATE_0, FMI_PWD_ENABLE,

FMI_LVD_ENABLE, FMI_FREQ_HIGH);

Kind regards,

Eris.

amira1 · ‎2011-05-17

Posted on May 17, 2011 at 09:50

Hello tiffanychen,

There is no problem with running flash above 48MHz. However, the maximum PCLK frequency is 48 MHz. Please find attached a simple example of toggling leds, flash running at 96MHz, and it's working well.

Please verify if you have something wrong in your software application.

Best regards,

Amira.

amira1 · ‎2011-05-17

Posted on May 17, 2011 at 09:50

Hello tiffanychen,

There is no problem with running flash above 48MHz. However, the maximum PCLK frequency is 48 MHz. Please find attached a simple example of toggling leds, flash running at 96MHz, and it's working well.

Please verify if you have something wrong in your software application.

Best regards,

Amira.

tiffanychen · ‎2011-05-17

Posted on May 17, 2011 at 09:50

I'd already try the example from mirou,

but the system still hang...

Because the example is used for STR912...not STR911

so I just copy the clock setting part on my code

I also set the Wait state to 2, but it still can't run...

Please give me some advices if you have any idea...

Thank you very much

tiffanychen · ‎2011-05-17

Posted on May 17, 2011 at 09:50

Can everybody help me?

Thank you very much