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If yes then What happens to the remaining locations n in case of Page write? Will it Stay OxFF or turns 0. I’m not sure datasyeet realize what are the implications of an eeprom page. Here is the 24LC datasheet.
One option to fill it is to write individual bytes. Using that mode you send the eeprom byte address for each byte you want to write so the page location poses no limit.
An alternative option is to write a block. The size of the block for the particular device is 64 bytes 2l4c256 the pages boundaries are.
24LC256 Serial I2C EEPROM 256K
When you write a block you only send the memory address once and then send the bytes to be stored. The address increments internally for each new byte. The page writes can only be used inside the boundaries of a page, what you reach the page boundaries you have to stop and start a new write sending the address again.
If you start a block write from an address that is near the end of the block then you can only write a few bytes until the end of the page rather than 64 bytes.
Please help me clarify Prop hex editor and the 24lc — Parallax Forums
For example If you start a block write from eeprom address then you can only write two bytes, in locations and If you keep writing bytes then the address rolls over and overwrites the start of the block in this case 64, In any case values of any eeprom location where a write or erase action hasn’t been performed maintain the existing value. Sure you can either with individual byte writes or with page write but withing the page boundaries which will be Is I explained earlier values in location where a dataasheet or erase cycle hasn’t been performs maintain their existing value.
Home Questions Tags Users Unanswered. Can i Write less than 64 Bytes? Say n Bytes If yes then What happens to the remaining locations n in case of Page write? Alin 7, 13 51 Rookie91 1, 3 16 There is a possibly helpful answer here: I have lost track of the number of comments I have left asking for clarification on your questions. Where are the datasheets and appnotes?
Thanks BrianDrummond, sloppy on my part. I can’t edit it now so have upvoted your correction.
Here is the 24LC datasheet One option to fill it is to write individual bytes. The size of the block for the particular device is 64 bytes so the pages boundaries are So for your question Can I Write less than 64 Bytes? If yes then What happens to that locations? Ben Jackson 3 Dave 1 Sign up or log in Sign up using Google. Sign up using Facebook.
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