All Questions
Tagged with eeprom microcontroller
69
questions
1
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2
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43
views
Is this EEPROM write procedure on STC microcontrollers correct? Any alternative?
I'm working on a STC15W204S microcontroller, a small, cheap and capable 8051 microcontroller. So far, with the flexibility of SDCC, using the provided STCAI-ISP software and the datasheet (which is ...
- 183
0
votes
0
answers
70
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Losing external EEPROM data after power Cycles on ESP32
Sending "1" starts the write operation into the eeprom every 1 second to the next available address, and sending "2" starts reading the written values into the eeprom. When there's ...
- 21
0
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0
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47
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External NOR Flash malfunctioning
External NOR Flash malfunctioning
Part used: ZD25WQ16CTIGT Zetta NOR Flash
We are using Zetta family 16MBit NOR Flash in a partitioned format. One partition is used as an emulated EEPROM, and another ...
0
votes
0
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72
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Problem in code while interfacing PIC24 with 25AA256 EEPROM
I have been trying to interface a PIC24FJ128GA010 with a 25AA256 EEPROM using Proteus and Serial Peripheral Interface (SPI).
I wrote a C code and configured everything and all pins but since I self ...
- 13
1
vote
1
answer
230
views
What is 0-255 in EEPROM in Arduino?
I am trying to use the EEPROM in Arduino but somehow getting the wrong number. Can anyone explain to me what does that parameter 'value' of 0 to 255(byte) actually mean does it mean it can only hold a ...
- 57
4
votes
1
answer
142
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Non-standard bitrate for I2C EEPROM
I have an I2C bus containing only 2 devices: a microcontroller and a Microchip 24LCXXX EEPROM.
In the datasheet of the EEPROM only maximum speed is specified (which is 100 kHz @VDD<2.5 V and 400 ...
- 489
0
votes
2
answers
270
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Is it possible to simulate an EEPROM with the STM32 F446RE chip?
I looked through the STM32 F446RE datasheet and was unable to find a way for the chip to keep persistent data values for when it is turned on and off, or when reset.
The only alternative I can think ...
- 77
1
vote
0
answers
336
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USB to Ethernet controller, RTL8153, without EEPROM and only 3.3 V
I want to implement an RTL8153 controller in the simplest and most compact way possible on the PCB of an Arduino project. It's a driver-free (CDC-ECM) USB to Ethernet PHY controller.
Can it be used ...
- 11
0
votes
0
answers
323
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Help with identifying rip off ARC HP Chip
I am really tired of 30$ HP Aliexpress magic chips worth 0.5$ in BOM.
Usually I did not care that much about the price as those ARC chips are more less permanent. However this time curiosity took over!...
0
votes
1
answer
113
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How to use external EEPROM (25AA320A) with the AT89S52 microcontroller over SPI
I am using the AT89S52-24PU as my MCU for a project where I need to read data from an EEPROM chip (in this case the 25AA320A serial EEPROM chip) over SPI. On the datasheet for the AT89S52 it says that ...
- 5
1
vote
1
answer
229
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EEPROM usage in LAN9500 USB to Ethernet IC
I'm using a Microchip LAN 9500 USB 2.0 to Ethernet IC - Datasheet
However, I don't want to use the EEPROM section, and I don't want the IC to be connected to any EEPROM.
What do I have to do with the ...
user220456
0
votes
1
answer
143
views
Can exceeding the write endurance of one EEPROM address corrupt the data at adjacent addresses?
As the title says, I want to know what could happen if you write too many time in one EEPROM address.
To be specific, I'm working on a microcontroller (STM32L072) and I saw a bit flip in EEPROM at a ...
- 13
2
votes
0
answers
210
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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
1
answer
181
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Page write method EEPROM is overwriting after 16 bytes [closed]
I am using an M24C04-R EEPROM. I am trying to do write page and read page of structure values, but it's overwriting the values after 16 bytes. uC is Renesas RX24T. Can anyone explain why?
- 9
0
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2
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532
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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