比如LTDC，可以在AF12，AF13和AF14中。
配置GPIO复用要特别注意。
/**
* @brief AF 0 selection
*/
#define GPIO_AF0_RTC_50Hz ((uint8_t)0x00) /* RTC_50Hz Alternate Function mapping */
#define GPIO_AF0_MCO ((uint8_t)0x00) /* MCO (MCO1 and MCO2) Alternate Function mapping */
#define GPIO_AF0_SWJ ((uint8_t)0x00) /* SWJ (SWD and JTAG) Alternate Function mapping */
#define GPIO_AF0_LCDBIAS ((uint8_t)0x00) /* LCDBIAS Alternate Function mapping */
#define GPIO_AF0_TRACE ((uint8_t)0x00) /* TRACE Alternate Function mapping */
/**
* @brief AF 1 selection
*/
#define GPIO_AF1_TIM1 ((uint8_t)0x01) /* TIM1 Alternate Function mapping */
#define GPIO_AF1_TIM2 ((uint8_t)0x01) /* TIM2 Alternate Function mapping */
#define GPIO_AF1_TIM16 ((uint8_t)0x01) /* TIM16 Alternate Function mapping */
#define GPIO_AF1_TIM17 ((uint8_t)0x01) /* TIM17 Alternate Function mapping */
#define GPIO_AF1_LPTIM1 ((uint8_t)0x01) /* LPTIM1 Alternate Function mapping */
#define GPIO_AF1_HRTIM1 ((uint8_t)0x01) /* HRTIM1 Alternate Function mapping */
/**
* @brief AF 2 selection
*/
#define GPIO_AF2_TIM3 ((uint8_t)0x02) /* TIM3 Alternate Function mapping */
#define GPIO_AF2_TIM4 ((uint8_t)0x02) /* TIM4 Alternate Function mapping */
#define GPIO_AF2_TIM5 ((uint8_t)0x02) /* TIM5 Alternate Function mapping */
#define GPIO_AF2_TIM12 ((uint8_t)0x02) /* TIM12 Alternate Function mapping */
#define GPIO_AF2_HRTIM1 ((uint8_t)0x02) /* HRTIM2 Alternate Function mapping */
#define GPIO_AF2_SAI1 ((uint8_t)0x02) /* SAI1 Alternate Function mapping */
/**
* @brief AF 3 selection
*/
#define GPIO_AF3_TIM8 ((uint8_t)0x03) /* TIM8 Alternate Function mapping */
#define GPIO_AF3_LPTIM2 ((uint8_t)0x03) /* LPTIM2 Alternate Function mapping */
#define GPIO_AF3_DFSDM1 ((uint8_t)0x03) /* DFSDM Alternate Function mapping */
#define GPIO_AF3_HRTIM1 ((uint8_t)0x03) /* HRTIM3 Alternate Function mapping */
#define GPIO_AF3_LPTIM3 ((uint8_t)0x03) /* LPTIM3 Alternate Function mapping */
#define GPIO_AF3_LPTIM4 ((uint8_t)0x03) /* LPTIM4 Alternate Function mapping */
#define GPIO_AF3_LPTIM5 ((uint8_t)0x03) /* LPTIM5 Alternate Function mapping */
#define GPIO_AF3_LPUART ((uint8_t)0x03) /* LPUART Alternate Function mapping */
/**
* @brief AF 4 selection
*/
#define GPIO_AF4_I2C1 ((uint8_t)0x04) /* I2C1 Alternate Function mapping */
#define GPIO_AF4_I2C2 ((uint8_t)0x04) /* I2C2 Alternate Function mapping */
#define GPIO_AF4_I2C3 ((uint8_t)0x04) /* I2C3 Alternate Function mapping */
#define GPIO_AF4_I2C4 ((uint8_t)0x04) /* I2C4 Alternate Function mapping */
#define GPIO_AF4_TIM15 ((uint8_t)0x04) /* TIM15 Alternate Function mapping */
#define GPIO_AF4_CEC ((uint8_t)0x04) /* CEC Alternate Function mapping */
#define GPIO_AF4_LPTIM2 ((uint8_t)0x04) /* LPTIM2 Alternate Function mapping */
#define GPIO_AF4_USART1 ((uint8_t)0x04) /* USART1 Alternate Function mapping */
#define GPIO_AF4_DFSDM1 ((uint8_t)0x04) /* DFSDM Alternate Function mapping */
/**
* @brief AF 5 selection
*/
#define GPIO_AF5_SPI1 ((uint8_t)0x05) /* SPI1 Alternate Function mapping */
#define GPIO_AF5_SPI2 ((uint8_t)0x05) /* SPI2 Alternate Function mapping */
#define GPIO_AF5_SPI3 ((uint8_t)0x05) /* SPI3 Alternate Function mapping */
#define GPIO_AF5_SPI4 ((uint8_t)0x05) /* SPI4 Alternate Function mapping */
#define GPIO_AF5_SPI5 ((uint8_t)0x05) /* SPI5 Alternate Function mapping */
#define GPIO_AF5_SPI6 ((uint8_t)0x05) /* SPI6 Alternate Function mapping */
#define GPIO_AF5_CEC ((uint8_t)0x05) /* CEC Alternate Function mapping */
/**
* @brief AF 6 selection
*/
#define GPIO_AF6_SPI2 ((uint8_t)0x06) /* SPI2 Alternate Function mapping */
#define GPIO_AF6_SPI3 ((uint8_t)0x06) /* SPI3 Alternate Function mapping */
#define GPIO_AF6_SAI1 ((uint8_t)0x06) /* SAI1 Alternate Function mapping */
#define GPIO_AF6_SAI3 ((uint8_t)0x06) /* SAI3 Alternate Function mapping */
#define GPIO_AF6_I2C4 ((uint8_t)0x06) /* I2C4 Alternate Function mapping */
#define GPIO_AF6_DFSDM1 ((uint8_t)0x06) /* DFSDM Alternate Function mapping */
#define GPIO_AF6_UART4 ((uint8_t)0x06) /* UART4 Alternate Function mapping */
/**
* @brief AF 7 selection
*/
#define GPIO_AF7_SPI2 ((uint8_t)0x07) /* SPI2 Alternate Function mapping */
#define GPIO_AF7_SPI3 ((uint8_t)0x07) /* SPI3 Alternate Function mapping */
#define GPIO_AF7_SPI6 ((uint8_t)0x07) /* SPI6 Alternate Function mapping */
#define GPIO_AF7_USART1 ((uint8_t)0x07) /* USART1 Alternate Function mapping */
#define GPIO_AF7_USART2 ((uint8_t)0x07) /* USART2 Alternate Function mapping */
#define GPIO_AF7_USART3 ((uint8_t)0x07) /* USART3 Alternate Function mapping */
#define GPIO_AF7_USART6 ((uint8_t)0x07) /* USART6 Alternate Function mapping */
#define GPIO_AF7_UART7 ((uint8_t)0x07) /* UART7 Alternate Function mapping */
#define GPIO_AF7_DFSDM1 ((uint8_t)0x07) /* DFSDM Alternate Function mapping */
#define GPIO_AF7_SDMMC1 ((uint8_t)0x07) /* SDMMC1 Alternate Function mapping */
/**
* @brief AF 8 selection
*/
#define GPIO_AF8_SPI6 ((uint8_t)0x08) /* SPI6 Alternate Function mapping */
#define GPIO_AF8_SAI2 ((uint8_t)0x08) /* SAI2 Alternate Function mapping */
#define GPIO_AF8_SAI4 ((uint8_t)0x08) /* SAI4 Alternate Function mapping */
#define GPIO_AF8_UART4 ((uint8_t)0x08) /* UART4 Alternate Function mapping */
#define GPIO_AF8_UART5 ((uint8_t)0x08) /* UART5 Alternate Function mapping */
#define GPIO_AF8_UART8 ((uint8_t)0x08) /* UART8 Alternate Function mapping */
#define GPIO_AF8_SPDIF ((uint8_t)0x08) /* SPDIF Alternate Function mapping */
#define GPIO_AF8_LPUART ((uint8_t)0x08) /* LPUART Alternate Function mapping */
#define GPIO_AF8_SDMMC1 ((uint8_t)0x08) /* SDMMC1 Alternate Function mapping */
/**
* @brief AF 9 selection
*/
#define GPIO_AF9_FDCAN1 ((uint8_t)0x09) /* FDCAN1 Alternate Function mapping */
#define GPIO_AF9_FDCAN2 ((uint8_t)0x09) /* FDCAN2 Alternate Function mapping */
#define GPIO_AF9_TIM13 ((uint8_t)0x09) /* TIM13 Alternate Function mapping */
#define GPIO_AF9_TIM14 ((uint8_t)0x09) /* TIM14 Alternate Function mapping */
#define GPIO_AF9_QUADSPI ((uint8_t)0x09) /* QUADSPI Alternate Function mapping */
#define GPIO_AF9_SDMMC2 ((uint8_t)0x09) /* SDMMC2 Alternate Function mapping */
#define GPIO_AF9_LTDC ((uint8_t)0x09) /* LTDC Alternate Function mapping */
#define GPIO_AF9_SPDIF ((uint8_t)0x09) /* SPDIF Alternate Function mapping */
#define GPIO_AF9_FMC ((uint8_t)0x09) /* FMC Alternate Function mapping */
#define GPIO_AF9_SAI4 ((uint8_t)0x09) /* SAI4 Alternate Function mapping */
/**
* @brief AF 10 selection
*/
#define GPIO_AF10_QUADSPI ((uint8_t)0xA) /* QUADSPI Alternate Function mapping */
#define GPIO_AF10_SAI2 ((uint8_t)0xA) /* SAI2 Alternate Function mapping */
#define GPIO_AF10_SAI4 ((uint8_t)0xA) /* SAI4 Alternate Function mapping */
#define GPIO_AF10_SDMMC2 ((uint8_t)0xA) /* SDMMC2 Alternate Function mapping */
#define GPIO_AF10_OTG2_HS ((uint8_t)0xA) /* OTG2_HS Alternate Function mapping */
#define GPIO_AF10_OTG1_FS ((uint8_t)0xA) /* OTG1_FS Alternate Function mapping */
#define GPIO_AF10_COMP1 ((uint8_t)0xA) /* COMP1 Alternate Function mapping */
#define GPIO_AF10_COMP2 ((uint8_t)0xA) /* COMP2 Alternate Function mapping */
#define GPIO_AF10_LTDC ((uint8_t)0xA) /* LTDC Alternate Function mapping */
/**
* @brief AF 11 selection
*/
#define GPIO_AF11_SWP ((uint8_t)0x0B) /* SWP Alternate Function mapping */
#define GPIO_AF11_ETH ((uint8_t)0x0B) /* ETH Alternate Function mapping */
#define GPIO_AF11_MDIOS ((uint8_t)0x0B) /* MDIOS Alternate Function mapping */
#define GPIO_AF11_OTG1_HS ((uint8_t)0x0B) /* OTG1_HS Alternate Function mapping */
#define GPIO_AF11_UART7 ((uint8_t)0x0B) /* UART7 Alternate Function mapping */
#define GPIO_AF11_SDMMC2 ((uint8_t)0x0B) /* SDMMC2 Alternate Function mapping */
#define GPIO_AF11_DFSDM1 ((uint8_t)0x0B) /* DFSDM Alternate Function mapping */
#define GPIO_AF11_COMP1 ((uint8_t)0x0B) /* COMP1 Alternate Function mapping */
#define GPIO_AF11_COMP2 ((uint8_t)0x0B) /* COMP2 Alternate Function mapping */
#define GPIO_AF11_I2C4 ((uint8_t)0x0B) /* I2C4 Alternate Function mapping */
/**
* @brief AF 12 selection
*/
#define GPIO_AF12_FMC ((uint8_t)0xC) /* FMC Alternate Function mapping */
#define GPIO_AF12_SDMMC1 ((uint8_t)0xC) /* SDMMC1 Alternate Function mapping */
#define GPIO_AF12_MDIOS ((uint8_t)0xC) /* MDIOS Alternate Function mapping */
#define GPIO_AF12_OTG2_FS ((uint8_t)0xC) /* OTG2_FS Alternate Function mapping */
#define GPIO_AF12_COMP1 ((uint8_t)0xC) /* COMP1 Alternate Function mapping */
#define GPIO_AF12_COMP2 ((uint8_t)0xC) /* COMP2 Alternate Function mapping */
#define GPIO_AF12_LTDC ((uint8_t)0xC) /* LTDC Alternate Function mapping */
/**
* @brief AF 13 selection
*/
#define GPIO_AF13_DCMI ((uint8_t)0x0D) /* DCMI Alternate Function mapping */
#define GPIO_AF13_DSI ((uint8_t)0x0D) /* DSI Alternate Function mapping */
#define GPIO_AF13_COMP1 ((uint8_t)0x0D) /* COMP1 Alternate Function mapping */
#define GPIO_AF13_COMP2 ((uint8_t)0x0D) /* COMP2 Alternate Function mapping */
#define GPIO_AF13_LTDC ((uint8_t)0x0D) /* LTDC Alternate Function mapping */
/**
* @brief AF 14 selection
*/
#define GPIO_AF14_LTDC ((uint8_t)0x0E) /* LTDC Alternate Function mapping */
#define GPIO_AF14_UART5 ((uint8_t)0x0E) /* UART5 Alternate Function mapping */
/**
* @brief AF 15 selection
*/
#define GPIO_AF15_EVENTOUT ((uint8_t)0x0F) /* EVENTOUT Alternate Function mapping */ |
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