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  • Will an SPI EEPROM chip have the same issues with non-atomic write operations as a dsPIC's internal EEPROM? March 7

    This question already has an answer here: Will an SPI flash memory chip have the same issues with non-atomic write operations as a dsPIC's internal EEPROM? 4 answers A while back I had some intermittent trouble with the internal EEPROM of a dsPIC. Ev

  • Serial EEPROM with FATAugust 9

    Is it possible to format an SPI EEPROM (such as AT24C128) to be used as an SD card? So format it with FAT 32 and have a 16MB drive appear in windows? Thanks --------------Solutions------------- Yes, it is possible, but you'd need some kind of control

  • How to write to 93LC46B EEPROM from an Arduino using SPIApril 8

    I have a question regarding eeproms and an Arduino (I am using Arduino Uno). I have the following eeprom: 93LC46B. From the datasheet I understand that in order to write the integers 1 and 2 to the first address I need to send the following bits: 1 :

  • High capacity - EEPROM chipJune 2

    I am looking for high capacity eeprom(I2C compatible) IC as an alternative to 1gb or 2gb micro SD card (data storage segment in my project) just in case I fail to interface Sdcard with pic32 mcu.. Suggestions are welcomed.. Thanks in advance.. ------

  • how to use TMP87P809N microcontroller with any EEPROMMay 5

    How to use TMP87P809N with any EEPROM so that I can save timer counting of CMOS RAM in EEPROM for backup, I want to save that counting if electricity get failed and restart. --------------Solutions------------- The TMP87P809N is an old microcontrolle

  • Simulating a Read/Write operation by FPGA in EEPROMSeptember 28

    I have to write some data into an SPI EEPROM by the FPGA. FPGA will act as master, and EEPROM will act as a slave. The problem is as I do not have FPGA board as of now, I will be simulating these read write operations. I am able to do some master sid

  • I need to lock reading my mega328 flash but be able to write to the eepromNovember 18

    I need to be able to prevent other from copying my program placed in the flash, but want to still be able to write to the EEPROM. I tried the lock bits by setting them to Mode 3 (0x3C). But that will prevent me from writing to the EEPROM. Is there a

  • EEPROM Reading/Writing without Use of ProgrammerDecember 27

    I am designing a small password based door lock project which is fully made from logic gates and ICs without the use of any sort of programmable devices(it is a simple university project for the Logic Design Course). And as assigned to me, I need a n

  • EEPROM MicrocontrollerFebruary 28

    It is just a general question. I have designed some micro controller boards with On-Board EEPROM. This EEPROM is to store some configuration parameters for program like calibration data and system IDs. Now when i want to write some configuration para

  • transferring bytes of data continous using SPIJuly 12

    I am pretty new to SPI module. I need to write bytes of data at 3 different locations of the temperature sensor memory only one time after power up. My doubts is, can i write all data by asserting CS(slave select) pin only one time. Or, do i need to

  • Why and when are development boards needed?

    Why and when are development boards needed? May 30

    To get started with embedded system development, is it enough to have an IDE like MPLAB? Or, do I also need a development board? Can't we just program micro-controller logics on our PCs and test the programs in IDEs? When, at our learning point, do w

  • Is it possible to use multi gigabyte DRAM modules with a microcontroller?May 4

    I have two leftover 2GB RAM modules that I removed from my MacBook Pro when doing an upgrade. I was just wondering if these were usable with, for example, an Arduino. I'd be too much of a beginner to actually try to do this now anyway, but I'm curiou

  • ezDSP does not boot with programmed codeJune 16

    I have an ezDSP, and I can program the examples. They work just fine when I open the debugger. When I unplug the module and plug it back in, it always reverts back to the factory test code. How do I make it so that the module boots with my code, not

  • Linux on ARM Cortex-M3 seriesSeptember 8

    I'm new to ARM and a bit confused with all the diferent series. I need to build a low power gateway (ethernet, wifi...), so I guess a cortex-M or cortex-R will be the good starting point. But it didn't find any dev board with say a cortex-m3 (wich se

  • STM32 and embedded linux? September 8

    I'm new to ARM and a bit confused with all the diferent series. I need to build a low power gateway (ethernet, wifi...), so I guess a cortex-M or cortex-R will be the good starting point. But it didn't find any dev board with say a cortex-m3 (wich se

  • PIC24FJ64GB110 and 25AA160October 17

    I have a 25AA160 wired to a PIC24FJ64GB110 (100-pin): SO - RD3 (pin78) SI - RD2 (pin77) SCK - RD1 (pin76) SS is not used. CS\ is wired to GND and WP\, HOLD\ are wired to VDD. I copy/paste code from Microchip and modified few lines to accomplish my ha

  • Non-Volatile Serial Memory ChipMarch 29

    I need a non-voltile serial memory chip that I can clock random bits(about 500 bits) into one at a time by hand using toggle switch to clock them in . This stored bitstream is then clocked out at 20K bits/second at the push of a button, every time yo

  • How to store audio data for AVR project?

    How to store audio data for AVR project?September 18

    I see a lot of projects for AVR-based audio players that use an SD card to store the audio data. In fact, I am currently doing the very same thing on an Arduino and its Wave Shield, which has an SD card reader. However, I'd like to develop a device t

  • Why do Nintendo 3DS games have 17 pins?

    Why do Nintendo 3DS games have 17 pins? October 29

    I took a good, hard look at one of my Nintendo 3DS games today, and I realized that there are actually 17 pins on the game that connect with the console. Why? I was under the impression that "everything" needed to be to a power of 2? -----------

  • Informations about FT2232H as programmer

    Informations about FT2232H as programmerJune 3

    I was looking on a EVB that use FT2232H chip to program an SPI ram used in second time to programm another device. My question is, if I copy the circuit that programm this SPI ram and use the same programmer provided by producer of EVB, it will work

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