Mohamed Ayman commented on a discussion on bsps/arm/stm32f4/include/bsp/stm32_usart.h: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1130#note_146220 > #define STM32F4_USART_DR_GET(reg) BSP_FLD32GET(reg, 0, 7) > #define STM32F4_USART_DR_SET(reg, val) BSP_FLD32SET(reg, val, 0, 7) > - uint32_t bbr; > -#define STM32F4_USART_BBR_DIV_MANTISSA(val) BSP_FLD32(val, 4, 15) > -#define STM32F4_USART_BBR_DIV_MANTISSA_GET(reg) BSP_FLD32GET(reg, 4, 15) > -#define STM32F4_USART_BBR_DIV_MANTISSA_SET(reg, val) BSP_FLD32SET(reg, val, > 4, 15) > -#define STM32F4_USART_BBR_DIV_FRACTION(val) BSP_FLD32(val, 0, 3) > -#define STM32F4_USART_BBR_DIV_FRACTION_GET(reg) BSP_FLD32GET(reg, 0, 3) > -#define STM32F4_USART_BBR_DIV_FRACTION_SET(reg, val) BSP_FLD32SET(reg, val, > 0, 3) > + uint32_t brr; > +#define STM32F4_USART_BRR_DIV_MANTISSA(val) BSP_FLD32(val, 4, 15) > +#define STM32F4_USART_BRR_DIV_MANTISSA_GET(reg) BSP_FLD32GET(reg, 4, 15) > +#define STM32F4_USART_BRR_DIV_MANTISSA_SET(reg, val) BSP_FLD32SET(reg, val, > 4, 15) > +#define STM32F4_USART_BRR_DIV_FRACTION(val) BSP_FLD32(val, 0, 3) > +#define STM32F4_USART_BRR_DIV_FRACTION_GET(reg) BSP_FLD32GET(reg, 0, 3) > +#define STM32F4_USART_BRR_DIV_FRACTION_SET(reg, val) BSP_FLD32SET(reg, val, > 0, 3) hi Wayne, This update is to ensure correctness and consistency across the codebase(cause stm32f4 driver is still under development). The register is officially named **BRR (Baud Rate Register)**, so the previous BBR naming was incorrect. I updated it to match the hardware specification and to stay consistent with other drivers like STM32H7 . I also updated all affected usages (such as in usart.c) and verified that there are no remaining dependencies on the old BBR naming. -- View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1130#note_146220 You're receiving this email because of your account on gitlab.rtems.org.
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