STM_AFIO_MAPR_SPI1_REMAP_PA4_PA5_PA6_PA7,
STM_AFIO_MAPR_SPI1_REMAP_MASK);
stm_spi_output_enable(&stm_gpioa, 5, SPI_1_MODE_OUTPUT);
STM_AFIO_MAPR_SPI1_REMAP_PA4_PA5_PA6_PA7,
STM_AFIO_MAPR_SPI1_REMAP_MASK);
stm_spi_output_enable(&stm_gpioa, 5, SPI_1_MODE_OUTPUT);