FMC Timing registers can not be written!
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‎2018-07-26 5:54 AM
Im working to use external SDRAM for STM32F746DISCO board and configuring associated FMC register. When ia start to debug i see that all of SDTR (timing) register bits are valued as F. I can write to SDCR and SDCMR registers but can not write to timing registers. What is the reason for that and how can i fix this problem?
Thanks
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‎2018-07-26 1:22 PM
Having a hard time visualizing this issue, show some configuration code and register view from the debugger.
Review and test the code examples from the repository, and compare-and-contrast with what you are doing.
Up vote any posts that you find helpful, it shows what's working..
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‎2018-07-26 11:16 PM
Thank for your answer Clive. i fixed that problem. These register's reset value are 0xFFFFFFFF so when i "ORed (|=)" the register with my values, all of the bits remain as F.
