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Questions tagged [eeprom]

Anything related to Electrically-Erasable Programmable Read Only Memory (EEPROM), a kind of non-volatile electronic memory technology. EEPROMs can be programmed and erased using only electrical signals and maintain their content also in absence of power supply. The now ubiquitous Flash memory is a specialized form of EEPROM. QUESTIONS ON STACK OVERFLOW MUST BE PROGRAMMING-RELATED, for other types of questions, post on another Stack Exchange site.

Anything related to Electrically-Erasable Programmable Read Only Memory (EEPROM), a kind of non-volatile electronic memory technology. EEPROMs can be programmed and erased using only electrical signals and maintain their content also in absence of power supply. The now ubiquitous is a specialized form of EEPROM.

See Wikipedia page on EEPROMs.

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How to store an equation in EEPROM?

I'm working with embedded systems. For the sake of explanation, I'm working with a dsPIC33EP and a simple serial EEPROM. Suppose I'm building a controller that uses a linear control scheme (y=mx+b). If the controller needs may different setting…
vini_i
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What's the difference between EEPROM.read(address) and EEPROM[address]

I'm using EEPROM on Arduino to store some large constant array. I noticed that both EEPROM.read(address) and EEPROM[address] works for my reading. But there are few documentations on the EEPROM[address] method. I also experienced occasional memory…
Rongzhong Li
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Reading from a eemprom with a pic16

I am currently using a pic16f1825 with an eeprom (24LC16BI/OT) and I'm trying to read from the eeprom. There is already a file on the eemprom but the trouble I am having is what address do I use because I was reading the datasheet and it says that…
mohammed saleh
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Atmega8 stops working after downloding EEPROM image

I had a very strange problem - after downloading EEPROM image to my atmega8 it's suddenly stops working - it's looks like it hangs up or something like this. If I download only flash image - it works perfect, except unproper values in EEMEM…
Funker
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Storing data in EEPROM, MICROCONTROLLER

I'm working with a MCF51EM256 Freescale microcontroller and I've some problems to store some data in the EEPROM to make it persistent. I need to store this struct in EEPROM: typedef struct { ui64_s Ea_ps; ui64_s Ea_ng; ui64_s Er_q1; …
Kroka
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Does comment style affect binary size?

I am getting started to the embedded system's world. During this journey I came across to a "different" way to comment functions: ISR(INT0_vect) { /* Run every time there is a change on button*/ I particularly prefer something like: // Run…
Kaguei Nakueka
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Write to memory? (PIC internal EEPROM)

I am following this tutorial which shows you how to write to data to Internal EEPROM. The only thing that is different in this tut is that they are using p18f4520 and I am using PIC18F87J11. When I try to build the code I get the following errors,…
Ammar
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Are EEPROMs one time programmable?

I want to erase only some part of locations to be modified in my application. Does the EEPROM supports these featrue? or they ar one time programmable?
Gunjan Bhavsar
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ESP32 CAM - EEPROM / sdcard / non erasable memory - beginner problem

Overwiew I am working on my first project with ESP32, I have ESP32 CAM model and I am creating an automatic roller blinds. I got most of the project working - I have web server that controls continous servo and all mechanics. I want to be able to…
nokufano
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Is it possible to write Cert.der and key.der in internal flash EEprom at run time? I am using stm32

All I am trying to write certifictae and key to flash EEPROM of stm32 , I know we can write the string but is it possible to write whole certificate(.der) in flash. I am using stm32f7 microcontroller and using internal eeprom. and I want to add…
embbo
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What is maximum of RAM and EEPROM use for Z80

I don't understand how function memory adress so i whant to buy memory for my zilog z80 but I don't know whitch one. I whant to know the maximum of memory can be using whith Zilog Z80.
Mr Lokki
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STM32 write signed short into EEPROM

I use STM32F0 mcu with emulated EEPROM. The EEPROM takes data as EE_WriteVariable(uint16_t VirtAddress, uint16_t Data) and returns them as EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data) but my data are int16_t. So my question is, how do I…
muliku
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Error in writing data in eeprom in Nodemcu

i am writing the data in eeprom of nodemcu esp8266 12e but their is error in writing data. after restarting the board the value is lost again not store for long . help to solve this issue. when i am writing the data in eeprom on board the data is…
ashwani pal
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PIC18F46J50 EEPROM read/write

The project i am working is as below: I got ADuC7061's USART is connected with PIC18F46j50 EUSART. the aduc7061 continously transmits an information and the pic18f receives that information through its eusart0. Now the question is that I have to…
akumar
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