Eduardo de Mier

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9 years, 8 months ago.

Single Byte read

Hallo. Is there any special reason why there is no function for single byte read?

Question relating to:

Last updated: 06 Dec 2013
I2C EEPROM 24LCXXX Driver

2 Answers

Wim Huiskamp
9 years, 8 months ago.

You can use the multibyte read and set size to 1. The code for a single byte read would be just about identical and just makes the lib larger.

The code for single and multi byte write on the other hand has more differences. BTW a quick look at the code shows that multibyte write is probably not very efficiently implemented. The memory address is set again for each byte. This should be auto-incremented by the EEPROM.

Great. I will look forward to optimize multi byte write and make a pull request. Will take some time until my pcbs arrive. Do you recommend any other lib for 24LC64 as a "standard"?

posted by Eduardo de Mier 01 Apr 2015

The component page has some examples https://developer.mbed.org/components/cat/storage/

posted by Wim Huiskamp 01 Apr 2015

The multibyte write didn't work as it didn't recognized page size. (You can not write over the page border). We have cleaned up and added a correct multibyte write to the library here: http://developer.mbed.org/teams/Akafugu/code/_24LCXXX/

Pull requests are pending.

posted by Karl Backström 15 Apr 2015
Hiroshi M
9 years, 7 months ago.

Thank you everyone.

I'm not familiar with how to use the mbed web. I published a half-hearted Archives that made the time being. It seems to have become as they left the state.

Like I have in the code that was written there was a bug. I am grateful. you for correction.