Registry/calibration data code

[steved]

Following on from my previous post, I've written some code for a general-purpose registry for small chunks of data; generally as the discussions in that thread.

Not properly integrated into ugfx, but works for me!

I'm using the code on ChibiOS with a small I2C FRAM (similar to an EEPROM) - limiting data size to about 250 bytes for simplicity at the I2C level. There's also a skeleton interface to GFILE.

Each registry entry is assigned a 'tag' (16-bit value), with two ways of using the code:

a) With a list of predetermined tags. (Very small code overhead)

b) More as a crude (but simple) file system, where any tag value is allowed.

The code also introduces another idea - a set of ugfx-wide error/result codes, which may generate some comment!

ugfx_updates_010714.zip

[inmarket]

Thanks. I look forward to going through the code over the next few days and integrating it into the ugfx repository.