What is static ram and dynamic ram
I applied the function F() to all my strings within println and it seems to now store them in static memory which free's up my SRAM. I understand that SRAM and DRAM and two different types but its still volatile memory. You can see Arduino use the terminology dynamic memory but obviously that refers to SRAM! Thanks for your response, I understand where I've went wrong now. No it does not say that as you have no DRAM!
It is stored in BOTH the flash and the SRAM. DRAM is dynamic RAM a different type of ram is used. SRAM is static ram this just means the type hardware used. However this seems to count towards dynamic memory and I'm starting to get warnings in the Arduino console saying "Low memory available, stability problems may occur." Why are these strings being placed in dynamic memory and how do I place them in static?
#What is static ram and dynamic ram serial#
I've got a lot of Serial prints for debugging like the following : if(DEBUG) Serial.println("WiFi/setupWiFi():: Resetting the module failed, retrying") So is a pointer just the location of where a variable is place in static memory? If you have a constant is the actual contents of the variable stored in static however is its memory location (pointer) stored in dynamic?Īnd for a non constant variable you have two copies of it, one in flash and one is SRAM? How are variables stored differently in static and dynamic memory? This is what I would think, however when I add X amount of characters too my char* the Arduino console shows the dynamic memory increasing by X amount of bytes. However are all constants such as : char* array = "My Char Array" When I declare a variable that is going to be used at runtime : char array = "My Char Array" You also have dynamic memory which is SRAM and on the Arduino Uno is limited to a small 2kb. I understand you have static memory which could be flash or EEPROM. I'm really struggling for space so I'm having to optimize all I can on memory however having a few questions.