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STM32F427 SRAM

gui2
Associate II

‎2014-05-20 02:54 PM

Posted on May 20, 2014 at 23:54

Hi,

I'm trying to use the 4K SRAM from STM32F427 with FreeRTOS 7.4.2. The VBat pin is correctly powered to a battery... The RTC works great.

I can access to SRAM memory and use it. At each reboot I can grab the data stored there.

The problem is when I power off the main power supply, leaving only the VBat supply: the information that I had stored in SRAM is changed by trash! :(

Anybody can help me?

#sram-stm32f4-reboot
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Tesla DeLorean
Guru

‎2014-05-20 04:51 PM

Posted on May 21, 2014 at 01:51

Place the chip in STANDBY

Tips, Buy me a coffee, or three.. PayPal Venmo
Up vote any posts that you find helpful, it shows what's working..
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