paolop74/exteeprom

Arduino library to support external I2C EEPROMs.

exteeprom's Issues

Small bug in print of dump function of eepromTest example

extEEPROM/examples/eepromTest/eepromTest.ino

Lines 148 to 152 in 4abc28d

	if ( d[c] < 16 ) {
	Serial.print(F("0"));
	Serial.print(d[c], HEX);
	Serial.print( c == 7 ? " " : " ");
	}

The original code of dump function skips print of byte when the value is < 16

Should be changed to this:
if ( d[c] < 16 ) Serial.print(F("0"));
Serial.print(d[c], HEX);
Serial.print( c == 7 ? " " : " ");

[Feature Request] get() and put()

Hi,

Are you able to add get() and put() functions for easy handling of data structures?

Cheers
Jye

FRAM Support

I would like to see direct FRAM support... eliminating the un-needed read/verify command after a write with FRAM's...

thanks

ESP32

Hiii!
I have been using this library with my M24M02 and Arduino board, working perfectly! But now in the ESP32 I cannot make it works.
Is there some change that should I do? It's this library prepare to ESP32 module too?

Thanks for your amazing work!

Clarification about using multiple I2C devices

Hello,

Thank you for providing this library ... it seems to be working well!

I do have one question in trying to better understand the library design, and how we can use this for our purposes. When I read the documentation, it appears that the Constructor allows us to provide a "nDev" parameter that represents the number of devices on the bus. If we do this, should we understand that you will then treat the set of devices as one consecutive chunk of EEPROM? And the addresses must be sequential and in order?

In our case we have a "motherboard" that can have up to 5 different daughter cards plugged in. We are using the I2C EEPROM on each daughter card to determine which card is plugged into which socket ... and some sockets might be empty.

So my real question is the best way that we could use your library to iterate the 5 addresses for each socket (0x50-0x54), detect if the EEPROM is present, and then read or write them.

I was thinking of trying to create an array of extEEPROM objects and iterate them, but in the Constructor I have to pass the I2C address ... and so I wasn't sure if this would work?

I would appreciate any suggestions on the best way to accomplish this ... and if there is a better place to post this question please let me know.

How to customize I2C pin

I plan to use 25 to define SDA and 26 to define SCL. How do I adjust the settings?

Clarification - const uint32_t totalKBytes = 1; for Microchip 24AA02

Hello, I'm just starting to use EEPROMs and quite frankly am still struggling with the addressing.
I am trying to use your extEEPROM driver and am getting errors (see below). I expect I have a wrong setup value but am at a loss to find the correct one.
(I'm using Arduino IDE 1.8.9)

My settings are:
//One 24AA02 EEPROMs on the bus const uint32_t totalKBytes = 1; //for read and write test functions extEEPROM eep(kbits_2, 1, 8); //device size, number of devices, page size uint8_t chunkSize = 4;

Thank you for your library and help

Regards
John

extEEPROM_output.txt