/* * File : drv_lcd.c * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Change Logs: * Date Author Notes * 2017-08-08 Yang the first version */ #include #include #include #include #include "fsl_iocon.h" #include "fsl_sctimer.h" #include "fsl_lcdc.h" static rt_uint16_t *lcd_framebuffer = RT_NULL; static rt_uint16_t *_rt_framebuffer = RT_NULL; #define RT_HW_LCD_WIDTH 480 #define RT_HW_LCD_HEIGHT 272 static struct rt_device_graphic_info _lcd_info; static struct rt_device lcd; #define LCD_PANEL_CLK (9 * 1000000UL) #define LCD_PPL 480 #define LCD_HSW 2 #define LCD_HFP 8 #define LCD_HBP 43 #define LCD_LPP 272 #define LCD_VSW 10 #define LCD_VFP 4 #define LCD_VBP 12 #define LCD_POL_FLAGS kLCDC_InvertVsyncPolarity | kLCDC_InvertHsyncPolarity #define LCD_WIDTH 480 #define LCD_HEIGHT 272 #define LCD_BITS_PER_PIXEL 16 static void lcd_gpio_init(void) { const uint32_t port2_pin11_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_PWR */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN11_IDX, port2_pin11_config); /* PORT2 PIN11 (coords: K3) is configured as LCD_PWR */ const uint32_t port2_pin13_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_DCLK */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN13_IDX, port2_pin13_config); /* PORT2 PIN13 (coords: P7) is configured as LCD_DCLK */ const uint32_t port2_pin14_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_FP */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN14_IDX, port2_pin14_config); /* PORT2 PIN14 (coords: L7) is configured as LCD_FP */ const uint32_t port2_pin15_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_AC */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN15_IDX, port2_pin15_config); /* PORT2 PIN15 (coords: M8) is configured as LCD_AC */ const uint32_t port2_pin16_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_LP */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN16_IDX, port2_pin16_config); /* PORT2 PIN16 (coords: L8) is configured as LCD_LP */ const uint32_t port2_pin21_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(3) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN21_IDX, port2_pin21_config); /* PORT2 PIN21 (coords: L10) is configured as LCD_VD(3) */ const uint32_t port2_pin22_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(4) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN22_IDX, port2_pin22_config); /* PORT2 PIN22 (coords: K10) is configured as LCD_VD(4) */ const uint32_t port2_pin23_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(5) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN23_IDX, port2_pin23_config); /* PORT2 PIN23 (coords: M14) is configured as LCD_VD(5) */ const uint32_t port2_pin24_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(6) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN24_IDX, port2_pin24_config); /* PORT2 PIN24 (coords: K14) is configured as LCD_VD(6) */ const uint32_t port2_pin25_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(7) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN25_IDX, port2_pin25_config); /* PORT2 PIN25 (coords: J11) is configured as LCD_VD(7) */ const uint32_t port2_pin27_config = ( IOCON_PIO_FUNC0 | /* Pin is configured as PIO2_27 */ IOCON_PIO_MODE_PULLUP | /* Selects pull-up function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN27_IDX, port2_pin27_config); /* PORT2 PIN27 (coords: H14) is configured as PIO2_27 */ const uint32_t port2_pin28_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(10) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN28_IDX, port2_pin28_config); /* PORT2 PIN28 (coords: G13) is configured as LCD_VD(10) */ const uint32_t port2_pin29_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(11) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN29_IDX, port2_pin29_config); /* PORT2 PIN29 (coords: G11) is configured as LCD_VD(11) */ const uint32_t port2_pin30_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(12) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN30_IDX, port2_pin30_config); /* PORT2 PIN30 (coords: F12) is configured as LCD_VD(12) */ const uint32_t port2_pin31_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(13) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT2_IDX, PIN31_IDX, port2_pin31_config); /* PORT2 PIN31 (coords: D14) is configured as LCD_VD(13) */ const uint32_t port3_pin0_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(14) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT3_IDX, PIN0_IDX, port3_pin0_config); /* PORT3 PIN0 (coords: D12) is configured as LCD_VD(14) */ const uint32_t port3_pin1_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(15) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT3_IDX, PIN1_IDX, port3_pin1_config); /* PORT3 PIN1 (coords: D11) is configured as LCD_VD(15) */ const uint32_t port3_pin5_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(19) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT3_IDX, PIN5_IDX, port3_pin5_config); /* PORT3 PIN5 (coords: B10) is configured as LCD_VD(19) */ const uint32_t port3_pin6_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(20) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT3_IDX, PIN6_IDX, port3_pin6_config); /* PORT3 PIN6 (coords: C9) is configured as LCD_VD(20) */ const uint32_t port3_pin7_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(21) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT3_IDX, PIN7_IDX, port3_pin7_config); /* PORT3 PIN7 (coords: B8) is configured as LCD_VD(21) */ const uint32_t port3_pin8_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(22) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT3_IDX, PIN8_IDX, port3_pin8_config); /* PORT3 PIN8 (coords: A7) is configured as LCD_VD(22) */ const uint32_t port3_pin9_config = ( IOCON_PIO_FUNC1 | /* Pin is configured as LCD_VD(23) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_STANDARD | /* Standard mode, output slew rate control is enabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT3_IDX, PIN9_IDX, port3_pin9_config); /* PORT3 PIN9 (coords: C7) is configured as LCD_VD(23) */ } void LCD_IRQHandler(void) { uint32_t intStatus = LCDC_GetEnabledInterruptsPendingStatus(LCD); LCDC_ClearInterruptsStatus(LCD, intStatus); if (intStatus & kLCDC_VerticalCompareInterrupt) { //s_frameEndFlag = true; } //__DSB(); } /* RT-Thread Device Interface */ static rt_err_t rt_lcd_init(rt_device_t dev) { /* Route Main clock to LCD. */ CLOCK_AttachClk(kMCLK_to_LCD_CLK); CLOCK_SetClkDiv(kCLOCK_DivLcdClk, 1, true); /*LCD管脚配置*/ lcd_gpio_init(); /* Set the back light PWM. */ { sctimer_config_t config; sctimer_pwm_signal_param_t pwmParam; uint32_t event; CLOCK_AttachClk(kMCLK_to_SCT_CLK); CLOCK_SetClkDiv(kCLOCK_DivSctClk, 2, true); SCTIMER_GetDefaultConfig(&config); SCTIMER_Init(SCT0, &config); pwmParam.output = kSCTIMER_Out_5; pwmParam.level = kSCTIMER_HighTrue; pwmParam.dutyCyclePercent = 5; SCTIMER_SetupPwm(SCT0, &pwmParam, kSCTIMER_CenterAlignedPwm, 1000U, CLOCK_GetFreq(kCLOCK_Sct), &event); } lcd_framebuffer = rt_malloc_align(sizeof(rt_uint16_t) * RT_HW_LCD_HEIGHT * RT_HW_LCD_WIDTH, 32); rt_memset(lcd_framebuffer, 0, sizeof(rt_uint16_t) * RT_HW_LCD_HEIGHT * RT_HW_LCD_WIDTH); { /* Initialize the display. */ lcdc_config_t lcdConfig; LCDC_GetDefaultConfig(&lcdConfig); lcdConfig.panelClock_Hz = LCD_PANEL_CLK; lcdConfig.ppl = LCD_PPL; lcdConfig.hsw = LCD_HSW; lcdConfig.hfp = LCD_HFP; lcdConfig.hbp = LCD_HBP; lcdConfig.lpp = LCD_LPP; lcdConfig.vsw = LCD_VSW; lcdConfig.vfp = LCD_VFP; lcdConfig.vbp = LCD_VBP; lcdConfig.polarityFlags = LCD_POL_FLAGS; lcdConfig.upperPanelAddr = (uint32_t)lcd_framebuffer;//VRAM_ADDR; lcdConfig.bpp = kLCDC_16BPP565; lcdConfig.display = kLCDC_DisplayTFT; lcdConfig.swapRedBlue = true; LCDC_Init(LCD, &lcdConfig, CLOCK_GetFreq(kCLOCK_LCD)); /* Trigger interrupt at start of every vertical back porch. */ LCDC_SetVerticalInterruptMode(LCD, kLCDC_StartOfBackPorch); LCDC_EnableInterrupts(LCD, kLCDC_VerticalCompareInterrupt); NVIC_EnableIRQ(LCD_IRQn); LCDC_Start(LCD); LCDC_PowerUp(LCD); } return RT_EOK; } static rt_err_t rt_lcd_control(rt_device_t dev, rt_uint8_t cmd, void *args) { switch (cmd) { case RTGRAPHIC_CTRL_RECT_UPDATE: { struct rt_device_rect_info *rect_info = (struct rt_device_rect_info *)args; /* 先指向绘图 buff 显示 */ LCD->UPBASE = (rt_uint32_t)_rt_framebuffer; /* 从绘图 buff copy 数据到显示 buff */ if (rect_info->width * rect_info->height < RT_HW_LCD_WIDTH * RT_HW_LCD_HEIGHT / 5 * 3) { int index = 0; rt_uint8_t *p = (rt_uint8_t *)lcd_framebuffer; rt_uint8_t *q = (rt_uint8_t *)_rt_framebuffer; p += (rect_info->x + rect_info->y * RT_HW_LCD_WIDTH) * sizeof(rt_uint16_t); q += (rect_info->x + rect_info->y * RT_HW_LCD_WIDTH) * sizeof(rt_uint16_t); for (index = 0; index < rect_info->height; index ++) { memcpy((void *)p, (void *)q, sizeof(rt_uint16_t) * rect_info->width); p += RT_HW_LCD_WIDTH * sizeof(rt_uint16_t); q += RT_HW_LCD_WIDTH * sizeof(rt_uint16_t); } } else { memcpy((void *)lcd_framebuffer, _rt_framebuffer, sizeof(rt_uint16_t)*RT_HW_LCD_HEIGHT * RT_HW_LCD_WIDTH); } /* 指回显示 buff */ LCD->UPBASE = (rt_uint32_t)lcd_framebuffer; rt_kprintf("====> rect_info : %d %d %d %d\n", rect_info->x, rect_info->y, rect_info->width, rect_info->height); } break; case RTGRAPHIC_CTRL_POWERON: break; case RTGRAPHIC_CTRL_POWEROFF: break; case RTGRAPHIC_CTRL_GET_INFO: memcpy(args, &_lcd_info, sizeof(_lcd_info)); break; case RTGRAPHIC_CTRL_SET_MODE: break; } return RT_EOK; } rt_uint16_t* get_lcd_framebuffer(void) { return lcd_framebuffer; } void lcd_clear(rt_uint16_t color) { volatile rt_uint16_t *p = (rt_uint16_t *)lcd_framebuffer; int x, y; for (y = 0; y <= RT_HW_LCD_HEIGHT; y++) { for (x = 0; x <= RT_HW_LCD_WIDTH; x++) { *p++ = color; /* red */ } } } void rt_hw_lcd_init(void) { _rt_framebuffer = rt_malloc_align(sizeof(rt_uint16_t) * RT_HW_LCD_HEIGHT * RT_HW_LCD_WIDTH, 32); if (_rt_framebuffer == RT_NULL) return; /* no memory yet */ _lcd_info.bits_per_pixel = LCD_BITS_PER_PIXEL; _lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565; // RTGRAPHIC_PIXEL_FORMAT_ARGB888 _lcd_info.framebuffer = (void *)_rt_framebuffer; _lcd_info.width = RT_HW_LCD_WIDTH; _lcd_info.height = RT_HW_LCD_HEIGHT; /* init device structure */ lcd.type = RT_Device_Class_Graphic; lcd.init = rt_lcd_init; lcd.open = RT_NULL; lcd.close = RT_NULL; lcd.control = rt_lcd_control; lcd.user_data = (void *)&_lcd_info; /* register lcd device to RT-Thread */ rt_device_register(&lcd, "lcd", RT_DEVICE_FLAG_RDWR); rt_lcd_init(&lcd); } void lcd_test(void) { lcd_clear(0xf800); rt_thread_delay(200); lcd_clear(0x07e0); rt_thread_delay(200); lcd_clear(0x001f); rt_thread_delay(200); } #ifdef RT_USING_FINSH #include FINSH_FUNCTION_EXPORT(lcd_clear, lcd_clear); FINSH_FUNCTION_EXPORT(lcd_test, lcd_test); #ifdef FINSH_USING_MSH MSH_CMD_EXPORT(lcd_clear, lcd_clear); MSH_CMD_EXPORT(lcd_test, lcd_test); #endif #endif