CODESYS Forge - CODESYS Forge / Talk / Runtime 🇬🇧: R/W retain variables in external i2c EEPROM type 24xxx

R/W retain variables in external i2c EEPROM type 24xxx

Forum: Runtime 🇬🇧

Creator: Ledrunner

Created: 2015-12-26

Updated: 2016-04-01

Ledrunner - 2015-12-26

Hi everyone! Has anyone used 24C32(64) EEPROM chip to saving retain variables? Is it possible? I have this part: http://www.ebay.com/itm/400503978923 m

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murdemon - 2015-12-26

You can save retain in data file like here l viewtopic.php?f=21&t=5722&start=15 l
then use http://www.gallot.be/?p=180 and execute from codesys ./eeprom -f data -w to save and to read ./eeprom –r –f data

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Ledrunner - 2015-12-28

murdemon hat geschrieben:
You can save retain in data file like here l viewtopic.php?f=21&t=5722&start=15 l
then use http://www.gallot.be/?p=180 and execute from codesys ./eeprom -f data -w to save and to read ./eeprom –r –f data

Hi! Thank you very! Tell me please where I'll find this programm for eeprom? This link is damaged root# wget http://www.lm-sensors.org/browser/i2c-t ... format=txt ...

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murdemon - 2015-12-31

Here is last version https://github.com/dgallot/i2c-tools m

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Ledrunner - 2016-04-01

Hello. Still, how to organize external at24cxxx memory accesses in codesys?

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