There is a 4.5MB FLASH in EMX.
I want to store some values in Flash once every 10 seconds in Flash, so that the values will be not left if power off. These values will be read from flash again when power on.
I have read some posts in the forum, it seems that I need the "Extended Weak Reference"
or “Battery RAM”. and a battery(3.3V) for “RTC_VBAT” Pin.
Question 1: why a battery(3.3) is needed? Flash is an electronic non-volatile storage, why I need a battery to keep the data in the Flash?
Question 2: After builing the Visual Studio project and clicking “F5”, the project will be loaded to EMX, which file of Visual Studio is be loaded in EMX? where is the file be save in EMX?