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.

24 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3
votes
1answer
2k views

Flash String Helper object as variable

So I have a Bunch of commonly used char arrays to build commands in my library. So to preserve memory, I have them put into flash, via PROGMEM ext, typedef const char PROGMEM ProgChar; ProgChar AT[] =...
2
votes
0answers
44 views

How to adjust Partition Scheme Wemos D1 mini pro?

I bought myself a WEMOS D1 mini PRO (16MB) for creating a quite large project. As I'm writing code, my memory is starting to grow. When I looked at the Flash size in Arduino IDE, the only options I ...
2
votes
0answers
3k views

ESP-01 not running custom firmware

I have two esp-01 micro controllers that I'm trying to flash using the Arduino IDE but found some problems in the process. I followed step 1 of this tutorial to install all the dependencies to the IDE....
2
votes
0answers
105 views

Erasing all flash on boards with over 64kb of program memory

I'm using a Mega2560 board. My project needs to store some large constant data. To preserve the first 64kb flash chunk, I write these data on addresses beyond this limit. But there is either an ...
2
votes
0answers
314 views

Software flashing attiny167 from RPi with avrdude

I am trying to flash a program onto an attiny167 (already bootloaded with the micronucleus bootloader) with a Raspberry Pi via avrdude and USB. Background I have 50 Raspberry Pi 3B's connected to an ...
2
votes
0answers
130 views

In-application programming for the Arduino Uno

I would like to know if it is possible to read from and write to the microcontroller's (Arduino Uno's ATmega328P) flash memory using a program or "bootloader" previously stored in the flash memory (or ...
1
vote
0answers
42 views

How can we remove unused feature in Arduino's standard SD library so we can reduce the sketch size?

With the ReadWrite example in Arduino IDE, the sketch size is 10980 bytes (34%) of an Arduino UNO's storage. How can we reduce the sketch size? There isn't any kind of #define to turn on/off features ...
1
vote
0answers
54 views

avrdude not in sync

So this uno was working before, now i can't upload anything, can't even burn the bootloader. Using another arduino as isp does not work. It always says avrdude: stk500_recv(): programmer is not ...
1
vote
0answers
59 views

Is there a way for an Arduino to flash another one without a computer?

I am going to create a game console. The games will be in an SD card and an Arduino (or an Atmega chip) will read a hex file's contents to RAM and will flash it to another one. Something like this but ...
1
vote
0answers
3k views

Send file from ESP to server via FTP

I've a code which records sound to SD, then starts an FTP connection for a limited time. I want to make an automatic system which records then sends the sound file continuously. Now I'm recording ...
1
vote
0answers
324 views

Reasons Flash Page is Locked Due

Using the Arduino Due on a project, I have found that I commonly run into the issue Flash Page is Locked when attempting to upload. I have used the library write functions of DueFlashStorage that ...
1
vote
0answers
174 views

Understanding flashing with bash in Ubuntu

I am following the instruction from this DIY tutorial to set up the firmware for my dust sensor on Arduino board (NodeMCU): https://luftdaten.info/en/construction-manual/#feinstaubsensor-konfiguration ...
1
vote
1answer
46 views

How Arduino UNO differentiate between program/flash and serial terminal data

I am excited to know how Arduino UNO or nano differentiate between program data that is to be burned into its flash when we press Upload Sketch and serial terminal data when we press Send? Is there ...
0
votes
0answers
45 views

D1 mini esp8266 error: esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header

I am pretty sure this device worked yesterday. I tried to short GPIO0 to ground (flash), nothing. I have a second ESP that uploads fine, but this one does not. Is their another way to get this ...
0
votes
0answers
30 views

25Q128 flash and garbage data over SPI

I have a logic analyzer coming in the mail, but thought I might ask for help here first. I soldered the 25Q128 flash onto an adapter and wired it up to an Arduino UNO clone as you can see in the ...
0
votes
0answers
300 views

Read & write on Winbond SPI flash using Arduino UNO

Recently I have brought a original UNO for modifying and flashing various types of bios. I had a dedicated one click bios programmer which was very expensive but few days ago it failed. So I thought ...
0
votes
0answers
39 views

CMOS returns unexpected result via SPI

I'm trying to set up SPI in order to interact with a CMOS flash, the MX25L6405DMI-12G to be exact. As a test I'm trying to read the identifier (RDID) which should return 3 fixed bytes. Currently the ...
0
votes
0answers
144 views

SPIFFS image does not fit in flash (offset 108MB)

I'm trying to upload an empty SPIFFS image to my ESP32's flash memory via the ESP32 sketch data uploader but I'm getting the following error: [SPIFFS] data : /path/to/my/data [SPIFFS] start : ...
0
votes
0answers
266 views

Standalone Programmer

I am trying to make my small stand-allone programmer to work using this code: https://github.com/adafruit/Standalone-Arduino-AVR-ISP-programmer But when I hookup everything and press button to flash ...
0
votes
0answers
89 views

Dataflash SPI Flash chip shared programming SPI pins

I have an ATTINY841 that is utilizing a Dataflash SPI flash chip (AT45DB011D). The SPI pins are connected to the same pins used for programming the ATTINY841. When I program the ATTINY841, I find ...
0
votes
0answers
35 views

Split flash Arduino nano

I need to update the firmware over-the-air for Arduino nano. For that I need to split the flash into two so that one of the partition that contains the original code cannot be erased while re-flashing ...
0
votes
0answers
497 views

Writing to flash Attiny 85

I set a project-goal for me: to make a very small compiler in Attiny.This compiler should read the code from user and translate it into code;then save it in some portion of the flash and jump there. I ...
-1
votes
2answers
1k views

getting “ .error: failed sending 1116 bytes warning: espcomm_send_command: didn't receive command response”

I'm getting error while uploading sketch into nodemcu ch340g as shown below I have tried these things to rectify the error 1) Changed usb cable 2) changed the port 3) flashed the firmware with ...
-1
votes
1answer
86 views

Files to YUN flash?

Is there a directory where, if I put files there, they will be on the Yun's internal flash instead of the SD card? ex. No SD card error handler file. I'm using openssh-sftp-server for a sftp server, ...