1. O

    PIC16F819 External EEPROM (24LC64) with CCS C problem

    Hello, it's my first time playing around with external eeproms (ik this chip has internal eeprom but I want to experiment with external eeproms) I have a test setup where my chip connected to an LED and a button. so when I click the button a value (ex.: 5) should be written on my eeprom and...
  2. M

    How to bypass BIOS password on an SPI EEPROM

    Hey, first of all I would like to say that basically all of what I'm talking about is far far away from my comfort zone and everything I know is from a 30 minute research on this topic. So I am trying to reset BIOS password on an old ASUS X51L laptop because everytime I turn it on I first have...
  3. Iwannalearneeprom

    24C256 Checksum EEPROM

    Hey guys I am trying to find the checksum for a hex string. Below attached is the hex code that have checksum already found out and in the 2nd bottom I need to find the checksum 08 D0 1B 60 08 D0 1B 60 00 00 00 00 00 00 00 00 00 0B 75 4B 00 00 91 DC So, in the upper hex code the last 4...
  4. Danielsuri

    Brown-out detection with an external clock ATmega1280

    I'm using ATmega1280 with an external clock and I have some questions about the "safe operating area" for preventing EEPROM corruption with BOD. The external clock is: Crystals 14.7456MHz 18pF HC49S SMD by CITIZEN, without clock division. LINK to ATmega1280 datasheet In the datasheet of...
  5. ashokraj

    Having issues with establishing a connection between totalphase I2c with EEPROM M24C32-RDW6TP

    I have started using total phase I2C host adapter. when I am trying to communicate with my target i could not able to communicate !! it is a simple process of connecting two wires of host adapter to my target but it is not working out. if some one has worked with any of these two parts( Total...
  6. danwastheman

    How to use an STM32 to flash a bios chip with a bin or hex file?

    My old PC motherboard's bios chips were corrupted and it's an old 1155 socket so there were no available replacements. I believe I have the necessary tools to attempt to erase and reprogram the chip, but I'm not sure what I need to do. There isn't much STM32 resources online to guide me...
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