STM32F401 has USART6 on PA12/PA11 and PC7/PC6 with alternate
function mapping AF08. This can be used, for example, to connect
to the Elegoo Neptune 3, where PA12/PA11 are wired to an RJ10 plug
going to the stock screen.
Signed-off-by: Marius Petcu <marius@petcu.me>
If an USART RX overrun happened on a stm32g0/f0/h7, the ORE flag
would get set by hardware. This flag would also trigger an interrupt.
The problem was that this flag was never cleared on these 3 mcu families
since the ORE flag clear sequence is different to all of the older
chips.
Since the ORE flag is not used in any meaningful way anyway, it was
disabled during the init sequence.
Signed-off-by: Alex Voinea <voinea.dragos.alexandru@gmail.com>
Now that the code in stm32f4/ can handle both stm32f1 and stm32f4
chips, rename the directory to just "stm32".
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
