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stm32/common: Implemented oversampling control support for the F2/F4 parts

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This commit is contained in:
dragonmux
2024-04-29 11:05:09 +01:00
committed by Piotr Esden-Tempski
parent 03a884bcca
commit 94411df91f
2 changed files with 25 additions and 0 deletions
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16
include/libopencm3/stm32/common/usart_common_f24.h
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@@ -89,6 +89,16 @@ specific memorymap.h header before including this header file.*/
/* OVER8: Oversampling mode */ /* OVER8: Oversampling mode */
#define USART_CR1_OVER8 (1 << 15) #define USART_CR1_OVER8 (1 << 15)
/* CR1_OVER8 values */
/****************************************************************************/
/** @defgroup usart_cr1_oversampling USART Oversampling Mode Selection
@ingroup STM32F_usart_defines
@{*/
#define USART_OVERSAMPLING_8 USART_CR1_OVER8
#define USART_OVERSAMPLING_16 0U
/**@}*/
/* --- USART_CR3 values ---------------------------------------------------- */ /* --- USART_CR3 values ---------------------------------------------------- */
/* ONEBIT: One sample bit method enable */ /* ONEBIT: One sample bit method enable */
@@ -96,6 +106,12 @@ specific memorymap.h header before including this header file.*/
#define USART_BRR_UPPER_MASK (0x0000fff0U) #define USART_BRR_UPPER_MASK (0x0000fff0U)
#define USART_BRR_LOWER_MASK (0x0000000fU) #define USART_BRR_LOWER_MASK (0x0000000fU)
BEGIN_DECLS
void usart_set_oversampling(uint32_t usart, uint32_t mode);
END_DECLS
#endif #endif
/** @cond */ /** @cond */
#else #else

9
lib/stm32/common/usart_common_f124.c
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@@ -110,5 +110,14 @@ bool usart_get_flag(uint32_t usart, uint32_t flag)
return ((USART_SR(usart) & flag) != 0); return ((USART_SR(usart) & flag) != 0);
} }
#ifdef LIBOPENCM3_USART_COMMON_F24_H
void usart_set_oversampling(uint32_t usart, uint32_t mode)
{
if (mode)
USART_CR1(usart) |= USART_CR1_OVER8;
else
USART_CR1(usart) &= ~USART_CR1_OVER8;
}
#endif
/**@}*/ /**@}*/