anders429 / gba_clock Goto Github PK

Hey,
I just wanted to let you know that it seems like it's not possible to use the library in a gba project as one of the dependencies deranged, is using std.

error[E0463]: can't find crate for `std`
  |
  = note: the `thumbv4t-none-eabi` target may not support the standard library
  = note: `std` is required by `deranged` because it does not declare `#![no_std]`
  = help: consider building the standard library from source with `cargo build -Zbuild-std`

While testing behavior when no RTC is actually present, it seems that trying to read from a non-existent RTC just returns all 0s. This causes errors to be returned in every case except for attempting to read the stored time by itself, as the returned set of all 0s is a valid read from the RTC.

Ideally, there needs to be some way to verify whether the RTC is actually readable. This should hopefully catch that the RTC is not available at all, since enabling it should have no effect (assuming that setting GPIO to readable doesn't have any effect when GPIO is not used by any specific device, need to confirm that).