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stm32: Initial support for stm32g0

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2021-12-18 19:11:17 -05:00
parent 4576b3918c
commit 6e8f28117b
6 changed files with 253 additions and 8 deletions
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17
src/stm32/stm32f0_serial.c
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@@ -43,9 +43,20 @@
#endif
#if CONFIG_MACH_STM32F031
// The stm32f031 has same pins for USART2, but everything is routed to USART1
#define USART2 USART1
#define USART2_IRQn USART1_IRQn
// The stm32f031 has same pins for USART2, but everything is routed to USART1
#define USART2 USART1
#define USART2_IRQn USART1_IRQn
#endif
#if CONFIG_MACH_STM32G0
// The stm32g0 has slightly different register names
#define USART2_IRQn USART2_LPUART2_IRQn
#define USART_CR1_RXNEIE USART_CR1_RXNEIE_RXFNEIE
#define USART_CR1_TXEIE USART_CR1_TXEIE_TXFNFIE
#define USART_ISR_RXNE USART_ISR_RXNE_RXFNE
#define USART_ISR_TXE USART_ISR_TXE_TXFNF
#define USART_BRR_DIV_MANTISSA_Pos 4
#define USART_BRR_DIV_FRACTION_Pos 0
#endif
#define CR1_FLAGS (USART_CR1_UE | USART_CR1_RE | USART_CR1_TE \