stm_spi->dr = 0xff;
while (!(stm_spi->sr & (1 << STM_SPI_SR_RXNE)))
;
- return stm_spi->dr;
+ return (uint8_t) stm_spi->dr;
}
void
#define ao_disable_port(port) do { \
if ((port) == &stm_gpioa) \
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIOAEN); \
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_GPIOAEN); \
else if ((port) == &stm_gpiob) \
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIOBEN); \
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_GPIOBEN); \
else if ((port) == &stm_gpioc) \
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIOCEN); \
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_GPIOCEN); \
else if ((port) == &stm_gpiod) \
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIODEN); \
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_GPIODEN); \
else if ((port) == &stm_gpioe) \
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIOEEN); \
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_GPIOEEN); \
} while (0)