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sosandroid / FRAM_MB85RC_I2C

Arduino library for I2C FRAM - Fujitsu MB85RC & Cypress FM24, CY15B
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add an example for working with 1Mbit Devices ? #17

Closed BlackBrix closed 4 years ago

BlackBrix commented 5 years ago

it is stated:

1M devices are in fact managed as 2 512 devices from lib point of view > create 2 instances of the object with each a differnt address

is it possible to add example code for that, just to show how to do it the right way ?

is it planned to overcome this limitation for 1Mbit (or greater) devices in future, so that it is not needed anymore to create 2 instances, but everything that is needed (special addressing and so on) is done internally within the library already ?

sosandroid commented 5 years ago

To add an exemple #include <Wire.h> #include <FRAM_MB85RC_I2C.h> FRAM_MB85RC_I2C mymemory_1sthalf; FRAM_MB85RC_I2C mymemory_2ndhalf; mymemory_1sthalf.begin(); mymemory_2ndhalf.begin();

For the rest of your question, this is possible to manage natively the 1M devices from the lib. You'll need to change the memory addressing to uint32_t and adapt the I2CAddressAdapt() method Not sure of the behavior when reading or writing 2 bytes data starting at the last location of the 1st memory page.