F021 Flash API - Fapi_initializeFlashBanks() problem

Joachim

Other Parts Discussed in Thread: RM48L952

Hello

I use the F021 Flash API V.2.00.01 to flash the internal flash memory of the RM48L952 at 220MHz.
If I call the Fapi_initializeFlashBanks() function with HCLK_FREQ=220 I get the return code Fapi_Error_InvalidHclkValue. If i go down with the frequency to HCLK_FREQ=207 (only for this function, not the system clock) everything works fine and I'm able to erase and flash the internal memory.

RWAIT and EWAIT are initialized to 3 what should be ok for 220MHz system clock.

Does anybody now what the problem could be?

Regards,
Joachim

over 12 years ago

0 John Hall over 12 years ago

TI__Genius 9015 points

Hello Joachim,

Are your parts marked xRM48L952?

0 Joachim over 12 years ago in reply to John Hall

Prodigy 170 points

Hello John

Yes, you are right (XRM48L952).

0 John Hall over 12 years ago in reply to Joachim

TI__Genius 9015 points

Hello Joachim,

The non-qualified xRM48L952 devices at 3 wait states is limited to 200MHz for erase and program operations. The qualified parts, RM48L952, do not have this limitation and supports these operations at 220MHz with 3 wait states.

The recommended solution for the xRM48L952 devices is either change system speed to 200MHz at 3 wait states or 220MHz at 4 wait states for erase and program operations.

0 Joachim over 12 years ago in reply to John Hall

Prodigy 170 points

Hello John

Thanks for the useful information!

Arm-based microcontrollers

Arm-based microcontrollers forum

F021 Flash API - Fapi_initializeFlashBanks() problem