stm32l1xx_ll_spi.h BUG and Warning

Posted on December 15, 2016 at 18:16

Dear Sirs

File : stm32l1xx_ll_spi.h

Very ugly BUG !!!!

__STATIC_INLINE void LL_GPIO_ResetOutputPin(GPIO_TypeDef *GPIOx, uint32_t PinMask)

{

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

&sharpif defined(GPIO_BRR_BR_0)   !!!!!!!   Correct : 

(GPIO_BRR)  !!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

WRITE_REG(GPIOx->BRR, PinMask);

&sharpelse

WRITE_REG(GPIOx->BSRR, (PinMask << 16));

&sharpendif /* GPIO_BRR_BR_0 */

}

OpenSTM32 rise a warning :

arm-none-eabi-gcc -mcpu=cortex-m3 -mthumb -mfloat-abi=soft -D__weak=__attribute__((weak)) -D__packed=__attribute__((__packed__)) -DUSE_HAL_DRIVER -DSTM32L100xC

stm32l1xx_ll_spi.h:1137:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]

__STATIC_INLINE void LL_SPI_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData)

{

*((__IO uint16_t *)&SPIx->DR) = TxData;

}

This code compiled without warning :

__STATIC_INLINE void LL_SPI_TransmitData8(SPI_TypeDef *SPIx, uint8_t TxData)

{

*((__IO uint8_t *)&SPIx->DR) = TxData;

}

Thanks

Tibor Kiss

#stm32l1xx_ll_spi.h-warning