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Disable FSMC in Stop mode

Question asked by guenni on Jul 11, 2017

Hi,

I'm using Stop mode on a custom board with STM32F207. There is a SRAM on the board for data storage.

I turn off SRAM in Stop mode, to reduce power consumption. Now I want to disable the FSMC of SRAM too. Therefore I use the function HAL_SRAM_DeInit before entering Stop mode. After leaving the Stop mode I reinitialize the FSMC by using HAL_SRAM_Init.

After reinitialization the FSMC doesn’t work correctly and I can’t access SRAM.

Is there a different way to disable FSMC?

 

Thanks in advance

Guenter

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