930 B
I2C Design
API / Interface
Ideally the interface should be as simple and portable as possible.
We don't want the consummer/user of the interface to need to worry about all the details of implimentation.
For instance the end-user should be able to in one line setup an I2C bus and on a second line to send or receive data.
I have some functions that I think should ideally be "privite" in normal usage. But I need to still be able to access those functions or methods during the testing.
Error handling
Errors need to be handled such that the end-user doesn't miss this information.
Timeouts
Sometimes there is errors in hardware or bus/hardware failures. These need to be found quickly and handled.
Sharing
The I2C bus needs to be shared sometimes. I need to figure out some ways to ensure safe sharing of the bus/resources.
I think maybe the sharing should be implimented externally to the HAL.