Questions tagged [flash]
Flash memory is a type of memory available on the Arduino boards. It can be accessed from a program using PROGMEM directive to store data. For questions about using and accessing flash memory, use this tag.
125 questions
1
vote
1
answer
485
views
ESP32-CAM infinite boot loop
I am currently using an ESP32-CAM with an OV5460 camera, and I am interfacing it with my computer using an Arduino Nano. I am trying to run a camera web server using the Arduino example code. I have ...
- 11
0
votes
1
answer
120
views
Creating firmware redundancy on Arduino Nano
Is there an established system, that, if a new version of the application is uploaded to Flash, switches to it automatically, but keeps the old one for the cases if, due to some problems, we need to ...
- 123
0
votes
1
answer
350
views
Attempt to change an ESP8266's flashs layout over-the-air
Backstory
Several Tasmota devices based on an ESP8285 have to be flashed with alien firmware. The devices' programming ports are not accessible (except for one dummy device which was cracked open for ...
- 1,878
2
votes
1
answer
131
views
Micropython installation on Arduino nano
I am currently trying to use micropython on an arduino Nano 33 BLE using MacOS. Following the instructions from arduino website I was able to complete steps 1-3. At step 4, I can find the bossac file ...
- 21
2
votes
2
answers
543
views
How .data + .text section can be = How much flash the final program will consume
I could not understand one point related with Arduino code.
Let's say i have following code
void setup()
{
Serial.begin(9600);
Serial.println("foo");
}
void loop()
{
}
When i ...
- 131
2
votes
0
answers
214
views
Can't flash my nodemcu esp8266
I wanted to flash my Nodemcu esp8266 v3.4 with esp8266 deauther code: script-github.
I did everything said. First I plugged in my nodemcu. Windows detected it and drivers for ch340 where already ...
- 21
1
vote
0
answers
68
views
How to prevent the application code from getting stuck in forever loop when using SerialFlash library in Arduino-Adafruit framework
I have been working on a project that runs on Adafruit's Bluefruit nRF52 board. I used the SerialFlash library for Arduino provided by Paul Stoffregen: https://github.com/PaulStoffregen/SerialFlash....
1
vote
1
answer
585
views
Arduino Nano IOT33 - Using flash
I'm looking for a way to store data on flash as on ESP8266 or ESP32 using FS.h, LITTLEFS.h but it fails.
Is is possible on Nano IOT33 ?
- 1,049
1
vote
2
answers
512
views
Is there a good reference for Arduino Due memory architecture and usage?
It's been harder than I expected to find a reference source or usage guide.
There's a number of sources I've looked at along the road to this question:
The Due is listed here and here as having 512KB ...
- 869
0
votes
1
answer
628
views
How I can populate a buffer from data read from SPI?
I have wired a Macronix MX35LF1GE4AB Flash memory into an arduino Uno using Logic Level Shifters. What I try to do with it is to dump its contents.
In order to do so, I am implementing the following ...
1
vote
1
answer
285
views
Reading & writing a configuration file on an Adafruit Circuit Playground Express
I would like to store an application's configuration in a file stored on the Circuit Playground Express (CPX) flash. The application itself needs to be able to update the configuration file. Things I ...
- 41
1
vote
1
answer
2k
views
How to set the eeprom initial value when flashing an ESP32
As I use the EEPROM to persist data such as for provisioning the WiFi (SSID and password), I'd like to make sure that the very first time the ESP32 runs, it finds the initial '\0' for the SSID so that ...
- 173
-1
votes
1
answer
1k
views
ESP8266 module ESP-12F does not connect to esptool.py
I have bought some blank ESP-12F modules like this: https://www.aliexpress.com/item/1005001520382593.html
For these modules I have made my own adapter PCB to connect them, but now I don't get any ...
- 1
1
vote
0
answers
266
views
Fatal exception preventing flashing ESP8266 ESP-01
My issue arose when attempting to flash several of my ESP8266 ESP-01 module (https://www.aliexpress.com/item/33010444450.html?spm=a2g0s.9042311.0.0.27424c4dNkKYQZ). In the past and with the first chip ...
- 11
1
vote
0
answers
720
views
Arduino Mega as a EEPROM Programmer for Winbond W29EE011 memories
I'm trying to use my Arduino Mega as an EEPROM memory writer. For this project, besides my Arduino Mega, I use an SD Card module, an LCD display and two push buttons to handle the events. Inside the ...
- 11