用SAM-BA或JLINK跑ATSAM4E16的程序(8)显示字符串

其实，显示字符串例程都有，我只不过多看了一下这个屏的函数。

其中定义了如下函数：


uint32_t ili93xx_init(struct ili93xx_opt_t *p_opt);
void ili93xx_display_on(void);
void ili93xx_display_off(void);
void ili93xx_set_foreground_color(ili93xx_color_t ul_color);
void ili93xx_fill(ili93xx_color_t ul_color);
void ili93xx_set_window(uint32_t ul_x, uint32_t ul_y,
        uint32_t ul_width, uint32_t ul_height);
void ili93xx_set_cursor_position(uint16_t us_x, uint16_t us_y);
void ili93xx_scroll(int32_t ul_lines);
void ili93xx_enable_scroll(void);
void ili93xx_disable_scroll(void);
void ili93xx_set_display_direction(enum ili93xx_display_direction e_dd,
        enum ili93xx_shift_direction e_shd,
        enum ili93xx_scan_direction e_scd);
uint32_t ili93xx_draw_pixel(uint32_t ul_x, uint32_t ul_y);
ili93xx_color_t ili93xx_get_pixel(uint32_t ul_x, uint32_t ul_y);
void ili93xx_draw_line(uint32_t ul_x1, uint32_t ul_y1,
        uint32_t ul_x2, uint32_t ul_y2);
void ili93xx_draw_rectangle(uint32_t ul_x1, uint32_t ul_y1,
        uint32_t ul_x2, uint32_t ul_y2);
void ili93xx_draw_filled_rectangle(uint32_t ul_x1, uint32_t ul_y1,
        uint32_t ul_x2, uint32_t ul_y2);
uint32_t ili93xx_draw_circle(uint32_t ul_x, uint32_t ul_y, uint32_t ul_r);
uint32_t ili93xx_draw_filled_circle(uint32_t ul_x, uint32_t ul_y,
        uint32_t ul_r);
void ili93xx_draw_string(uint32_t ul_x, uint32_t ul_y, const uint8_t *p_str);
void ili93xx_draw_pixmap(uint32_t ul_x, uint32_t ul_y, uint32_t ul_width,
        uint32_t ul_height, const ili93xx_color_t *p_ul_pixmap);
void ili93xx_set_top_left_limit(ili93xx_coord_t x, ili93xx_coord_t y);
void ili93xx_set_bottom_right_limit(ili93xx_coord_t x, ili93xx_coord_t y);
void ili93xx_set_limits(ili93xx_coord_t start_x, ili93xx_coord_t start_y,
        ili93xx_coord_t end_x, ili93xx_coord_t end_y);
ili93xx_color_t ili93xx_read_gram(void);
void ili93xx_write_gram(ili93xx_color_t color);
void ili93xx_copy_pixels_to_screen(const ili93xx_color_t *pixels,
        uint32_t count);
void ili93xx_copy_raw_pixel_24bits_to_screen(const uint8_t *raw_pixels,
        uint32_t count);
void ili93xx_duplicate_pixel(const ili93xx_color_t color, uint32_t count);
void ili93xx_copy_pixels_from_screen(ili93xx_color_t *pixels, uint32_t count);
uint8_t ili93xx_device_type(void);
void ili93xx_vscroll_area_define(uint16_t us_tfa, uint16_t us_vsa,
        uint16_t us_bfa);
uint8_t ili93xx_device_type_identify(void);


我试了下画图填充的画圆函数。需要注意的是每次画圆，都要选确定一下前台的着色:

以下是程序：

复制

#include "asf.h"

#include "stdio_serial.h"

#include "conf_board.h"

#include "conf_clock.h"

#include "smc.h"

#include "ili93xx.h"



/** Chip select number to be set */

#define ILI93XX_LCD_CS      1



struct ili93xx_opt_t g_ili93xx_display_opt;



/**

 *  Configure UART console.

 */

static void configure_console(void)

{

        const usart_serial_options_t uart_serial_options = {

                .baudrate = CONF_UART_BAUDRATE,

                .paritytype = CONF_UART_PARITY

        };



        /** Configure console UART. */

        sysclk_enable_peripheral_clock(CONSOLE_UART_ID);

        stdio_serial_init(CONF_UART, &uart_serial_options);

}



/**

 * \brief Application entry point for smc_lcd example.

 *

 * \return Unused (ANSI-C compatibility).

 */

int main(void)

{

        sysclk_init();

        board_init();



        /** Initialize debug console */

        configure_console();



        /** Enable peripheral clock */

        pmc_enable_periph_clk(ID_SMC);



        /** Configure SMC interface for Lcd */

        smc_set_setup_timing(SMC, ILI93XX_LCD_CS, SMC_SETUP_NWE_SETUP(2)

                        | SMC_SETUP_NCS_WR_SETUP(2)

                        | SMC_SETUP_NRD_SETUP(2)

                        | SMC_SETUP_NCS_RD_SETUP(2));

        smc_set_pulse_timing(SMC, ILI93XX_LCD_CS, SMC_PULSE_NWE_PULSE(4)

                        | SMC_PULSE_NCS_WR_PULSE(4)

                        | SMC_PULSE_NRD_PULSE(10)

                        | SMC_PULSE_NCS_RD_PULSE(10));

        smc_set_cycle_timing(SMC, ILI93XX_LCD_CS, SMC_CYCLE_NWE_CYCLE(10)

                        | SMC_CYCLE_NRD_CYCLE(22));

#if ((!defined(SAM4S)) && (!defined(SAM4E)))

        smc_set_mode(SMC, ILI93XX_LCD_CS, SMC_MODE_READ_MODE

                        | SMC_MODE_WRITE_MODE

                        | SMC_MODE_DBW_8_BIT);

#else

        smc_set_mode(SMC, ILI93XX_LCD_CS, SMC_MODE_READ_MODE

                        | SMC_MODE_WRITE_MODE);

#endif

        /** Initialize display parameter */

        g_ili93xx_display_opt.ul_width = ILI93XX_LCD_WIDTH;

        g_ili93xx_display_opt.ul_height = ILI93XX_LCD_HEIGHT;

        g_ili93xx_display_opt.foreground_color = COLOR_BLACK;

        g_ili93xx_display_opt.background_color = COLOR_WHITE;



        /** Switch off backlight */

        aat31xx_disable_backlight();



        /** Initialize LCD */

        ili93xx_init(&g_ili93xx_display_opt);



        /** Set backlight level */

        aat31xx_set_backlight(AAT31XX_AVG_BACKLIGHT_LEVEL);



        ili93xx_set_foreground_color(COLOR_DARKBLUE);

        ili93xx_draw_filled_rectangle(0, 0, ILI93XX_LCD_WIDTH,

                        ILI93XX_LCD_HEIGHT);

        /** Turn on LCD */

        ili93xx_display_on();

        ili93xx_set_cursor_position(0, 0);



        /** Draw text, image and basic shapes on the LCD */

        ili93xx_set_foreground_color(COLOR_WHITE);

        ili93xx_draw_string(10, 20, (uint8_t *)"ili93xx_lcd example");

        

        ili93xx_draw_string(10, 40, (uint8_t *)"This's 21ic's Atmel");



        ili93xx_set_foreground_color(COLOR_RED);

        ili93xx_draw_filled_circle(60, 160, 40);

        ili93xx_set_foreground_color(COLOR_GREEN);

        ili93xx_draw_filled_circle(120, 160, 40);

        ili93xx_set_foreground_color(COLOR_BLUE);

        ili93xx_draw_filled_circle(180, 160, 40);



        //ili93xx_set_foreground_color(COLOR_VIOLET);

        //ili93xx_draw_line(0, 0, 240, 320);

        

    

        

        



        while (1) {

        }

}

下面是运行结果：