STM32F429第二十五篇之MCU屏实验详解

发布日期：2021-05-14 11:31:51 浏览次数：20 分类：精选文章

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SRAM_HandleTypeDef

/**
 * @brief SRAM handle Structure definition
 */
#ifndef USE_HAL_SRAM_REGISTER_CALLBACKS
typedef struct __SRAM_HandleTypeDef {
    FMC_NORSRAM_TypeDef *Instance;
    FMC_NORSRAM_EXTENDED_TypeDef *Extended;
    FMC_NORSRAM_InitTypeDef Init;
    HAL_LockTypeDef Lock;
    __IO HAL_SRAM_StateTypeDef State;
   _DMA_HandleTypeDef *hdma;
#if USE_HAL_SRAM_REGISTER_CALLBACKS
    void (* MspInitCallback)(struct __SRAM_HandleTypeDef *hsram);
    void (* MspDeInitCallback)(struct __SRAM_HandleTypeDef *hsram);
    void (* DmaXferCpltCallback)(DMA_HandleTypeDef *hdma);
    void (* DmaXferErrorCallback)(DMA_HandleTypeDef *hdma);
#endif
} SRAM_HandleTypeDef;
#endif

FMC_NORSRAM_InitTypeDef

/**
 * @brief FMC NORSRAM Configuration Structure definition
 */
typedef struct {
    uint32_t NSBank;
    uint32_t DataAddressMux;
    uint32_t MemoryType;
    uint32_t MemoryDataWidth;
    uint32_t BurstAccessMode;
    uint32_t WaitSignalPolarity;
    uint32_t WrapMode;
    uint32_t WaitSignalActive;
    uint32_t WriteOperation;
    uint32_t WaitSignal;
    uint32_t ExtendedMode;
    uint32_t AsynchronousWait;
    uint32_t WriteBurst;
    uint32_t ContinuousClock;
    uint32_t WriteFifo;
    uint32_t PageSize;
} FMC_NORSRAM_InitTypeDef;

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/** FMC_NORSRAM������������ */
#define FMC_NORSRAM_DEVICE        FMC_Bank1
/** FMC������������������ */
#define FMC_R_BASE              0xA0000000UL
/** FMC������������������������ */
#define FMC_NORSRAM_EXTENDED_DEVICE    FMC_Bank1E
#define FMC_Bank1E_R_BASE     (FMC_R_BASE + 0x0104UL)

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/** HAL��������������� */
typedef enum {
    HAL_UNLOCKED = 0x00U,
    HAL_LOCKED   = 0x01U
} HAL_LockTypeDef;

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/** SRAM������������ */
typedef enum {
    HAL_SRAM_STATE_RESET     = 0x00U,
    HAL_SRAM_STATE_READY     = 0x01U,
    HAL_SRAM_STATE_BUSY      = 0x02U,
    HAL_SRAM_STATE_ERROR     = 0x03U,
    HAL_SRAM_STATE_PROTECTED = 0x04U
} HAL_SRAM_StateTypeDef;

FMC_NORSRAM_TimingTypeDef

/**
 * @brief FMC NORSRAM Timing parameters structure definition
 */
typedef struct {
    uint32_t AddressSetupTime;
    uint32_t AddressHoldTime;
    uint32_t DataSetupTime;
    uint32_t BusTurnAroundDuration;
    uint32_t CLKDivision;
    uint32_t DataLatency;
    uint32_t AccessMode;
} FMC_NORSRAM_TimingTypeDef;

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int main(void) {
    u8 x = 0;
    u8 lcd_id[12];
    
    /* ��������������� */
    HAL_Init();
    Stm32_Clock_Init(360, 25, 2, 8);
    delay_init(180);
    uart_init(115200);
    LED_Init();
    LCD_Init();
    
    /* ��������������� */
    POINT_COLOR = RED;
    sprintf((char *)lcd_id, "LCD ID:%04X", lcddev.id);
    
    /* while������ */
    while (1) {
        switch (x) {
            case 0:
                LCD_Clear(WHITE);
                break;
            case 1:
                LCD_Clear(BLACK);
                break;
            case 2:
                LCD_Clear(BLUE);
                break;
            case 3:
                LCD_Clear(RED);
                break;
            case 4:
                LCD_Clear(MAGENTA);
                break;
            case 5:
                LCD_Clear(GREEN);
                break;
            case 6:
                LCD_Clear(CYAN);
                break;
            case 7:
                LCD_Clear(YELLOW);
                break;
            case 8:
                LCD_Clear(BRRED);
                break;
            case 9:
                LCD_Clear(GRAY);
                break;
            case 10:
                LCD_Clear(LGRAY);
                break;
            case 11:
                LCD_Clear(BROWN);
                break;
        }
        POINT_COLOR = RED;
        LCD_ShowString(10, 40, 240, 32, 32, "Apollo STM32F4/F7");
        LCD_ShowString(10, 80, 240, 24, 24, "TFTLCD TEST");
        LCD_ShowString(10, 110, 240, 16, 16, "ATOM@ALIENTEK");
        LCD_ShowString(10, 130, 240, 16, 16, lcd_id);
        LCD_ShowString(10, 150, 240, 12, 12, "2016/1/6");
        x++;
        if (x == 12) x = 0;
        LED0 = !LED0;
        delay_ms(1000);
    }
}

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HAL_SRAM_Init

HAL_StatusTypeDef HAL_SRAM_Init(SRAM_HandleTypeDef *hsram, FMC_NORSRAM_TimingTypeDef *Timing, FMC_NORSRAM_TimingTypeDef *ExtTiming) {
    if (hsram == NULL) {
        return HAL_ERROR;
    }
    if (hsram->State == HAL_SRAM_STATE_RESET) {
        hsram->Lock = HAL_UNLOCKED;
        #if USE_HAL_SRAM REGISTER_CALLBACKS
        if (hsram->MspInitCallback == NULL) {
            hsram->MspInitCallback = HAL_SRAM_MspInit;
        }
        hsram->DmaXferCpltCallback = HAL_SRAM_DMA_XferCpltCallback;
        hsram->DmaXferErrorCallback = HAL_SRAM_DMA_XferErrorCallback;
        hsram->MspInitCallback(hsram);
        #else
        HAL_SRAM_MspInit(hsram);
        #endif
    }
    FMC_NORSRAM_Init(hsram->Instance, &hsram->Init);
    FMC_NORSRAM_Timing_Init(hsram->Instance, Timing, hsram->Init.NSBank);
    FMC_NORSRAM_Extended_Timing_Init(hsram->Extended, ExtTiming, hsram->Init.NSBank, hsram->Init.ExtendedMode);
    __FMC_NORSRAM_ENABLE(hsram->Instance, hsram->Init.NSBank);
    return HAL_OK;
}

HAL_SRAM_MspInit

void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram) {
    __HAL_RCC_FMC_CLK_ENABLE();
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_GPIOE_CLK.EnablePopup();
    GPIO_InitTypeDef GPIO_Initure = {GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15};
    GPIO_Initure.Mode = GPIO_MODE_AF_PP;
    GPIO_Initure.Pull = GPIO_PULLUP;
    GPIO_Initure.Speed = GPIO_SPEED_HIGH;
    GPIO_Initure.Alternate = GPIO_AF12_FMC;
    HAL_GPIO_Init(GPIOD, &GPIO_Initure);
    GPIO_Initure.Pin = GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
    HAL_GPIO_Init(GPIOE, &GPIO_Initure);
}

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上一篇：ACM【倒蛇填数】：

下一篇：STM32F429第二十四篇之SRAM原理

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