Questions tagged [flash]
Flash is a type of EEPROM which is page-eraseable. It's commonly used for microcontroller program memory and code storage. You can use this tag for questions about this type of memory as well as questions about "flashing", the process of changing the data in Flash when programming a microcontroller.
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How to isolate a chip from a board without unsoldering it?
I have a board from some device with SPI flash memory chip. I also have a separate CH341a programmer for such chips and I intend to read the SPI flash memory chip from the board.
Now I want to do this ...
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How can I take advantage of the way that a Flash memory chip actually works? [closed]
What kind of FLASH memory lets me to separate the ERASE and WRITE operations, and lets me directly address memory cells without some controller abstracting away that possibility from me?
For ...
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Are there any flash (or other non-volatile) memories with page erase sizes that are not a power of two?
Are there any flash (or other non-volatile) memories with page erase sizes (in terms of address space) that are not a power of two?
I am not interested in old (retro-computing / out of production / ...
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[STM32F412]Flash writing problem with USB Host active
I've a problem on the STM32F412 with flash writing and USB Host initialized.
When USB Host is active and I attempt to write to flash, the software execution blocking at FLASH_FlushCaches function, on ...
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What are some typical SPI NOR flash failure modes?
I am working with SPI connected NOR flash memory and I've noticed that something like 0.01% of devices experience some kind of write failure over their lifetime. We are careful not to exceed the ...
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Multiple Page Write of Flash
My querry is, I am trying to write data from a file stored in by Raspberry PI to an external flash. The size of the file is greater than 256 bytes. As Flash allows writing a max of only 256 bytes in 1 ...
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Flash memory corruption possible reasons?
I am working with an external Serial Flash memory (Winbond 25Q80). I could read-erase-write the flash memory using SerialFlash library in arduino environment. But it seems data of flash memory gets ...
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How to design an SD card to Memory Stick adapter?
I want to design an SD card to Memory Stick adapter. I will need to somehow implement SD controller (host) and Memory Stick controller (device) in my design, then do the translation between the ...
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Where are the SFDP tables stored?
For context, I'm learning about the boot process of Intel devices.
SFDP standard provides a consistent method of describing the functional and feature capabilities of Serial Flash devices in a ...
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ESP32-CAM flash via UART
I'm looking for help to upload from Arduino IDE into an ESP32-CAM module, without an FTDI programmer or shield.
Context
I've got a couple of ESP32-CAM modules with an associated ESP32-CAM-MB shield ...
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Can I write SD card a cluster without erasing if it contains only 0xFF?
In my understanding, a block has many clusters in it. Once I erase a block, all data in the block became 0xFF. Then I can write new data into the clusters in the block.
So, if I already know that all ...
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Where should the interrupt vector table be placed in memory on STM32H7A3RGT6 chips?
According to the STM32H7 programming manual "On system reset, the vector table is at address 0x00000000."
But at the same time the STM32H7A3 reference manual says in it's memory map ...
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Is resistor needed for Flash IC?
I am making my first micro controller board with the rp2040. It requires external flash and so I picked the MT25QL128ABA1EW7 since it seems to match all the requirements based on this document: https:/...
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STM32 BOOTLOAD and FLASH
I am designing a PCB with stm32f4 controller in it. I was designed arduino boards in my past. I am researching for STM32 flashing a code or bootload in datasheets. If I am not wrong with a only 4 pin (...
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ESP8266: Able to flash but no program execution
I designed a PCB based on the ESP8266EX dotn here is the schematic:
To flash the board I use the module: https://joy-it.net/de/products/SBC-ESP8266-PROG
I am able to flash the board with Arduino IDE ...
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