All Questions
53
questions
2
votes
0
answers
73
views
Is it safe to replace a 120ns Flash memory with a 90ns part?
Here is an old PLC board with a pair of AM29F200AB-120SI SOP-44 256kB 5V flash chips. One is unable to retain data, after nearly three decades in service.
These are very challenging to find today, ...
- 16.3k
1
vote
0
answers
46
views
Does "field electron emission" used in EEPROM work better than "hot-carrier injection" in NOR Flash?
After deeping research based on my another question, I continued comparing Flash and EEPROM based on wikipedia comparison table.
From wikipedia about the Flash memory:
Programming
the source-drain ...
- 183
2
votes
0
answers
210
views
FLASH memory corruption
I have a stm32f030c8t6 which I wish to save some data in its FLASH memory. I use Address Page30 which is 0x08007800 in memory map. it is in 7th Sector. I've developed my code and easily saved some ...
- 103
0
votes
2
answers
532
views
Microcontroller and Memory size allocation
Below are two custom made microcontrollers. The only difference between this is memory size.
My question:
Can someone tell me what is their start address and end address? Like, for the first one - ...
user220456
0
votes
1
answer
258
views
Use FPGA to program external memory? [closed]
For a project, I am going to use an FPGA to process an incoming data stream and convert it into binary code that a microcontroller runs.
My current idea is to store the processed data on an EEPROM ...
7
votes
5
answers
2k
views
EEPROM Fatigue - Does it affect only the cells being written excessively, or will it cause global failures?
We have an EEPROM with a 10,000 cycle life duration - Our application may write more than 10,000 times.
If we write to the same location over & over, is it only that single location that ...
- 4,618
0
votes
0
answers
344
views
Can I safely erase the EEPROM on my ATmega2560 by flashing a hex file where every byte is 0xFF?
I am updating the firmware on my 3D printer from Sailfish to Marlin and my chip is not responding to the erase command on my ATmega2560; but I am able to flash it:
...
- 2,885
4
votes
4
answers
1k
views
Possible to buy Atmega328p with programmed Flash and EEPROM?
I've recently upgraded my old project that goes to mass production (a pair of thousand pieces, pretty niche). Previously I used DIP atmega328p, which were manually programmed in China. I sent them a ...
- 3,613
1
vote
1
answer
404
views
Interface USB and SPI flash (Boot PC from SPI)
Basically I am looking for a way to boot a PC from SPI flash. I'm talking about average AMD/Intel desktop mainboards. BIOS is already on SPI, but I need a way to also put the kernel and maybe initrd ...
- 19
6
votes
4
answers
3k
views
Why is my program stored in flash memory instead of EEPROM in ATmega328?
As I was going through the differences (basically they are same, but they still have some differences) between flash memory and EEPROM here, I figured out that the flash memory can handle lesser ...
- 1,079
1
vote
2
answers
222
views
Is it possible to use PIC10Fxx internal flash to store data between deep sleep?
I want to store a single bit with rare rewrite. It's possible for STM32 without EEPROM, but how about PIC microcontroller?
And is there examples with configuration and code?
- 125
0
votes
1
answer
93
views
Adapt EEPROM EMULATOR STM32F103VE
I'm working with STM32F103VE and STM32F746, and i want to use my Flash memory as EEPROM EMULATOR for writing and reading data easily.
I have searched for axemples of Emulation of EEPROM for my board ...
0
votes
0
answers
313
views
Why bad data is read from SPI Flash
I have a device in which there is a SPI flash and a I2C EEPROM, W25Q256JV (32MB) and AT24C1024 (1MB) respectively.
The MCU writes data packets in the flash fifo and saves its read write pointers in ...
- 1,479
0
votes
1
answer
544
views
How is an EEPROM different from a Flash memory? [duplicate]
I am trying to understand the terminology used for various non-volatile memory chips for example as EEPROM and Flash.
Is there any preference to use the word EEPROM or Flash for specific type of ...
- 1,479
1
vote
1
answer
1k
views
Put saved data in flash of STM32 at the end of all other sections
I want to emulate EEPROM over flash of STM32F103. Is there a way to use all free flash instead of the only page? How can I initialize starting point of my EEPROM emulation so that it would be after ...
- 121