The programming and reading of I2C EEProms is one of the major uses of the as 2,4 or 8 separate 24C02 memories with sequential I2C sub-. I am trying to read and write I2C EEPROM (24C02 from Microchip) but i failed every-time. i am using Kohms as a pull up resistor in the I2C bus. My code is. Now the problem is: as I go through the datasheets of all such I2C serial memories there is a memory reset in that of AT24C02 which is not.
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‘Resetting 24C02 I2C EEPROM’ – confused
Handy to check first if you are getting a connection with the device, try running the following code: Maecenas et dictum libero. Menu Search through millions of questions and answers User.
The device address word consists of a mandatory one, zero sequence for the first 24c022 most significant bits as shown. It may help you farther to view my problem.
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Content on this site may contain or be subject to specific guidelines or limitations on use. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Heat sinks, Part 2: In 244c02 to Maria Todorova: I2C bus 24C08 and 24C64 Problem 3.
The Byte Write operation to the AT24C02 requires 7 42c02 device address, one byte memory addressand one or more bytes of memory data. However, I want you to confirm that your write byte and read byte function work properly or not the ones that you said they worked.
In reply to Maria Todorova:.
Fritzing Project – Read/Write Serial EEPROM via I2C
If you observed i2v waveform you will find that only first data was written. Read this before posting a programming question Don’t use “copy for forum” in the IDE.
I will share you my i2c code using i22c, it is very simple and doesn’t use interrupt, so it is easier to follow the flow. I checked the wave forms on DSO. In reply to sagar:.