On Thu, Apr 16, 2020 at 1:16 AM raiden00pl . <raiden0...@gmail.com> wrote: > > How does the RCC (clock tree) compare? > > RCC looks like in G0 family, which is not registers compatible with older > versions. But clock tree is similar to those found in F4/F7.
On Thu, Apr 16, 2020 at 12:44 AM raiden00pl . <raiden0...@gmail.com> wrote: > Yes, there are some new features in analogs but if you look at registers > organization > and configuration bits, these looks the same as in F3. > > Timers: Both have HRTIM, but the STM32F334 has HRTIM IP version 1.0 > > while STM32G474Cxt has HRTIM IP version 2.0. This adds various > > features and capabilities, described in [2]. Also, the G4 more of the > > regular resolution timers. > > > > As above, we have new features, but the basic structure is the same. > The question is when we can talk about completely new IP block and > when we can talk only about an extended old version. > In my opinion, when the registers are identical, we have backward > compatibility but some new functions added - we are dealing with the same > IP block. > > With this approach, we can easily extend existing code with some #ifdefs. So what's the deciding factor? Should this be in 'stm32' directory because most peripherals have compatibility? Or a different directory because RCC is different? Nathan
