lcd_ssd1289.zip_LCD1289_嵌入式 lcd

/** * @file lcd_ssd1289.c * @brief lcd驱动程序(仅支持ssd1289芯片) * @author 王晓荣 * @version * @date 2014-04-02 */ #include "lcd_ssd1289.h" #include "delay.h" #include "lcd_font.h" /** 引脚定义 */ #define LCD_WR_PIN GPIO_Pin_14 #define LCD_WR_PORT GPIOD #define LCD_WR_APB2Periph RCC_APB2Periph_GPIOD #define LCD_CS_PIN GPIO_Pin_7 #define LCD_CS_PORT GPIOC #define LCD_CS_APB2Periph RCC_APB2Periph_GPIOC #define LCD_RS_PIN GPIO_Pin_15 #define LCD_RS_PORT GPIOD #define LCD_RS_APB2Periph RCC_APB2Periph_GPIOD #define LCD_RD_PIN GPIO_Pin_13 #define LCD_RD_PORT GPIOD #define LCD_RD_APB2Periph RCC_APB2Periph_GPIOD #define LCD_DATA_PORT GPIOE #define LCD_DATA_APB2Periph RCC_APB2Periph_GPIOE ////////////////////////////////////////////////////////////////////////////////////////////////////// static void lcd_pin_config(void); static void lcd_write_reg(uint16_t reg,uint16_t value); static void lcd_ram_prepare(void); static void lcd_write_ram(uint16_t value); static uint16_t lcd_bgr2rgb(uint16_t c); static uint16_t lcd_read_ram(void); static void lcd_data_as_input(void); static void lcd_data_as_output(void); static uint16_t lcd_read_sta(void); /** 控制引脚设置 */ #define lcd_set_cs() GPIO_SetBits(LCD_CS_PORT, LCD_CS_PIN) #define lcd_set_wr() GPIO_SetBits(LCD_WR_PORT, LCD_WR_PIN) #define lcd_set_rs() GPIO_SetBits(LCD_RS_PORT, LCD_RS_PIN) #define lcd_set_rd() GPIO_SetBits(LCD_RD_PORT, LCD_RD_PIN) #define lcd_reset_cs() GPIO_ResetBits(LCD_CS_PORT, LCD_CS_PIN) #define lcd_reset_wr() GPIO_ResetBits(LCD_WR_PORT, LCD_WR_PIN) #define lcd_reset_rs() GPIO_ResetBits(LCD_RS_PORT, LCD_RS_PIN) #define lcd_reset_rd() GPIO_ResetBits(LCD_RD_PORT, LCD_RD_PIN) /** * LCD测试 * @param None * @return None */ void lcd_test(void) { /** 输出文本测试 */ uint16_t i; uint8_t ch[] = "ABCDEFG" ; uint8_t *str = ch; for (i=0; *(str + i); i++) { lcd_putchar_16x24((16*i), 24, *(str + i), RED, YELLOW); } // /** 输出图像测试 */ // uint16_t *str1; //TEST PICTURE // str1 = (uint16_t * )PICTURE; // lcd_draw_picture(0, 0, 134, 239, str1); } /** * LCD配置函数 * @param None * @return None */ void lcd_config(void) { lcd_pin_config(); delay_ms(50); /** 控制引脚初始化 */ lcd_set_cs(); lcd_set_wr(); lcd_set_rd(); lcd_set_rs(); /** 开启内部振荡器 */ lcd_write_reg(0x0000,0x0001); delay_ms(50); /**< 等待osc稳定 */ /** 执行上电流程 */ lcd_write_reg(0x0003,0xA8A4); lcd_write_reg(0x000C,0x0000); lcd_write_reg(0x000D,0x080C); lcd_write_reg(0x000E,0x2B00); lcd_write_reg(0x001E,0x00B0); delay_ms(50); /** .13 0：RGB的值越小越亮；1：RGB的值越大越亮 * .11 0：RGB；1: BGR * .9 0：319-->0；1: 0-->319 * .14 0：719-->0；1: 0-->719 * .0 ~.8: 设置最大行号 (0x13f = 319) */ lcd_write_reg(0x0001,0x293F); lcd_write_reg(0x0002,0x0600); /**< LCD Driving Waveform control */ lcd_write_reg(0x0010,0x0000); /**< .0 0: 关闭睡眠模式; 1: 打开睡眠模式 */ lcd_write_reg(0x0011,0x6070); /**< .13-.14 11：16位RGB模式；10：18位RGB模式 */ lcd_write_reg(0x0016,0xEF1C); /**< .15-.8 设置每行的像素数，0xef: 设为240 */ lcd_write_reg(0x0017,0x0003); /**< Vertical Porch */ lcd_write_reg(0x0007,0x0233); /**< Display Control */ lcd_write_reg(0x000B,0x0000); /**< Frame Cycle Control */ lcd_write_reg(0x000F,0x0000); /**< Gate Scan Position */ lcd_write_reg(0x0041,0x0000); /**< Vertical Scroll Control */ lcd_write_reg(0x0042,0x0000); /**< Vertical Scroll Control */ lcd_write_reg(0x0048,0x0000); /**< Screen driving position */ lcd_write_reg(0x0049,0x013F); /**< Screen driving position */ lcd_write_reg(0x004A,0x0000); /**< Screen driving position */ lcd_write_reg(0x004B,0x0000); /**< Screen driving position */ lcd_write_reg(0x0044,0xEF00); /**< Horizontal RAM address position */ lcd_write_reg(0x0045,0x0000); /**< Horizontal RAM address position */ lcd_write_reg(0x0046,0x013F); /**< Horizontal RAM address position */ lcd_write_reg(0x0030,0x0707); /**< Gamma Control */ lcd_write_reg(0x0031,0x0204); /**< Gamma Control */ lcd_write_reg(0x0032,0x0204); /**< Gamma Control */ lcd_write_reg(0x0033,0x0502); /**< Gamma Control */ lcd_write_reg(0x0034,0x0507); /**< Gamma Control */ lcd_write_reg(0x0035,0x0204); /**< Gamma Control */ lcd_write_reg(0x0036,0x0204); /**< Gamma Control */ lcd_write_reg(0x0037,0x0502); /**< Gamma Control */ lcd_write_reg(0x003A,0x0302); /**< Gamma Control */ lcd_write_reg(0x003B,0x0302); /**< Gamma Control */ lcd_write_reg(0x0023,0x0000); /**< RAM write data mask */ lcd_write_reg(0x0024,0x0000); /**< RAM write data mask */ lcd_write_reg(0x0025,0x8000); /**< Frame Frequency Control; 0X8000: 对应屏幕响应频率为65Hz */ lcd_write_reg(0x004e,0); /**< 列(X)首地址设置 */ lcd_write_reg(0x004f,0); /**< 行(Y)首地址设置 */ } /** * LCD清屏 * @param [in]color 刷屏颜色 * @return None */ void lcd_clr(uint16_t color) { u32 index=0; lcd_set_cursor(0,0); lcd_ram_prepare(); lcd_reset_cs(); lcd_set_rs(); for(index=0;index<76800;index++) /** 320*240 = 76800 */ { lcd_reset_wr(); GPIO_Write(LCD_DATA_PORT, color); lcd_set_wr(); } lcd_set_cs(); } /** * 设置鼠标 * @param [in]x 列 * @param [in]y 行 * @return None */ void lcd_set_cursor(uint16_t x,uint16_t y) { lcd_write_reg(0x004e,y); lcd_write_reg(0x004f,x); } /** * 设置窗口 * @param [in]窗口起始点和结束点位置 * @return None */ void lcd_set_windows(uint16_t start_x,uint16_t start_y,uint16_t end_x,uint16_t end_y) { lcd_set_cursor(start_x, start_y); lcd_write_reg(0x0050, start_x); lcd_write_reg(0x0052, start_y); lcd_write_reg(0x0051, end_x); lcd_write_reg(0x0053, end_y); } /** * 获取指定像素点的值 * @param [in]x 列 * @param [in]y 行 * @return 像素点处的值 */ uint16_t lcd_get_point(uint16_t x,uint16_t y) { lcd_set_cursor(x, y); return (lcd_bgr2rgb(lcd_read_ram())); } /** * 指定像素点赋值 * @param [in]x 列 * @param [in]y 行 * @param [in]value 像素点处的值 * @return None */ void lcd_set_point(uint16_t x, uint16_t y, uint16_t value) { lcd_set_cursor(x, y); lcd_ram_prepare(); lcd_write_ram(value); } /** * 固定窗口显示图片 * 源图为RGB888模式: R8 G8 B8 R8 G8 B8 R8 G8 B8... * 需转换为: BGR565 BGR565 BGR565 ... * @param [in]窗口起始点和结束点位置 * @param [in]*picture 图像指针 * @return None */ void lcd_draw_picture(uint16_t start_x, uint16_t start_y, uint16_t end_x, uint16_t end_y, uint16_t *picture) { uint16_t g_r, r_b, b_g, bgr565; u32 length_div2; u32 i; uint16_t x, y; uint16_t *p_pic = picture; x = start_x; y = start_y; length_div2 = (end_x - start_x + 1) * (end_y - start_y + 1) / 2; for (i = 0; i < length_div2; i++) { g_r = *p_pic++; r_b = *p_pic++; b_g = *p_pic++; bgr565 = ( ((g_r >> 3) & 0x001f) | /**< 取r的高5位 */ ((g_r >> 5) & 0x07E0) | /**< 取g的高6位 */ ((r_b << 8) & 0xF800) ); /**< 取b的高5位 */ lcd_set_point(x, y, bgr565); y++; if(y > end_y) { x++; y = start_x; } bgr565 = ( ((r_b >> 11) & 0x001f) | /**< 取r的高5位 */ ((b_g << 3) & 0x07E0) | /**< 取g的高6位 */ ( b_g & 0xF800) );