Hi Nathan, I have not looked at the G part yet so I cannot say for certain, but I can share this:
We learned many lessons from the coupling in the stm32 dirs. The take away was Avoid it! The F7 model is much better - the goal is to not have ifdef rash. Layered includes bring it the correct headers. Not litter the headers or code with #if defined(STM32xxxxx) .... David -----Original Message----- From: Nathan Hartman [mailto:hartman.nat...@gmail.com] Sent: Tuesday, April 14, 2020 2:51 PM To: dev@nuttx.apache.org Subject: Adding support for STM32G474RET6 Regarding STM32 support, I'd like to add architectural and board support for the B-G474E-DPOW1 Discovery board and its STM32G474RET6 microcontroller: https://www.st.com/en/evaluation-tools/b-g474e-dpow1.html My first question is, which directory does this architecture belong in? Looking at the directories under arch/arm/src or arch/arm/include, it seems they go loosely by core type: * stm32 - Mix of Cortex-M3 STM32F1, STM32F2 families, Cortex-M4 STM32F3, STM32F4 families * stm32f0l0g0 - Cortex-M0, -M0+ * stm32f7 - Cortex-M7 * stm32h7 - Cortex-M4 and Dual Core -M4/-M7, in the STM32H7 family only * stm32l4 - Cortex-M4, in the STM32L4 family only The STM32G4 family is Cortex-M4 and seems to have similarities to the STM32F4 family. Does this belong in the stm32 directory? Does it require a new stm32g4 directory? Thanks, Nathan
