我用的是原子的战舰V4板,lcd显示屏是在网上买的5寸屏幕,854*480的程序是正点提供的官方emwin例程,lcd的驱动程序事先验证过能够正常显示包括字符串文字
lcd的画点函数以及读点函数等都是用的正点的函数,只是改了底层配置
但是跟着正点加入emwin的程序后就不能正常显示移植黑屏,有没有大佬知道具体的原因
代码如下:
这里是单片机主程序
int main(void)
{
HAL_Init(); /* 初始化HAL库 */
sys_stm32_clock_init(RCC_PLL_MUL9); /* 设置时钟, 72Mhz */
delay_init(72); /* 延时初始化 */
usart_init(115200); /* 串口初始化为115200 */
usmart_dev.init(72); /* 初始化USMART */
led_init(); /* 初始化LED */
lcd_init(); /* 初始化LCD */
key_init(); /* 初始化按键 */
sram_init(); /* SRAM初始化 */
my_mem_init(SRAMIN); /* 初始化内部SRAM内存池 */
my_mem_init(SRAMEX); /* 初始化外部SRAM内存池 */
btim_timx_int_init(999,71); /* 定时1ms */
__HAL_RCC_CRC_CLK_ENABLE(); /* 使能CRC时钟 */
GUI_Init(); /* emWin 初始化 */
// GUIDEMO_Main();
GUI_SetBkColor(GUI_RED); /* 设置背景颜色 */
GUI_SetColor(GUI_BLUE);
GUI_Clear(); /* 清屏 */
GUI_SetColor(GUI_BLACK); /* 设置颜色 */
GUI_SetFont(&GUI_Font32_ASCII); /* 设置字体 */
GUI_DispStringAt("Hello emWin!", 0, 0); /* 在指定位置显示字符串 */
while(1);
}
下面是显示相关的函数
static void _SetPixelIndex(GUI_DEVICE * pDevice, int x, int y, LCD_PIXELINDEX PixelIndex) {
#ifdef WIN32
LCDSIM_SetPixelIndex(x, y, PixelIndex, pDevice->LayerIndex);
#else
//
// Convert logical into physical coordinates (Dep. on LCDConf.h)
//
#if (LCD_MIRROR_X == 1) || (LCD_MIRROR_Y == 1) || (LCD_SWAP_XY == 1)
int xPhys, yPhys;
xPhys = LOG2PHYS_X(x, y);
yPhys = LOG2PHYS_Y(x, y);
#else
#define xPhys x
#define yPhys y
#endif
GUI_USE_PARA(pDevice);
GUI_USE_PARA(x);
GUI_USE_PARA(y);
GUI_USE_PARA(PixelIndex);
{
//
// Write into hardware ... Adapt to your system
//
// TBD by customer...
//
lcd_draw_point(x,y,PixelIndex);
}
#if (LCD_MIRROR_X == 0) && (LCD_MIRROR_Y == 0) && (LCD_SWAP_XY == 0)
#undef xPhys
#undef yPhys
#endif
#endif
}
static LCD_PIXELINDEX _GetPixelIndex(GUI_DEVICE * pDevice, int x, int y) {
LCD_PIXELINDEX PixelIndex;
#ifdef WIN32
PixelIndex = LCDSIM_GetPixelIndex(x, y, pDevice->LayerIndex);
#else
//
// Convert logical into physical coordinates (Dep. on LCDConf.h)
//
#if (LCD_MIRROR_X == 1) || (LCD_MIRROR_Y == 1) || (LCD_SWAP_XY == 1)
int xPhys, yPhys;
xPhys = LOG2PHYS_X(x, y);
yPhys = LOG2PHYS_Y(x, y);
#else
#define xPhys x
#define yPhys y
#endif
GUI_USE_PARA(pDevice);
GUI_USE_PARA(x);
GUI_USE_PARA(y);
{
//
// Write into hardware ... Adapt to your system
//
// TBD by customer...
//
PixelIndex = lcd_read_point(x,y);
}
#if (LCD_MIRROR_X == 0) && (LCD_MIRROR_Y == 0) && (LCD_SWAP_XY == 0)
#undef xPhys
#undef yPhys
#endif
#endif
return PixelIndex;
}
static void _FillRect(GUI_DEVICE * pDevice, int x0, int y0, int x1, int y1) {
int x;
if (GUI_pContext->DrawMode & LCD_DRAWMODE_XOR)
{
for (; y0 <= y1; y0++)
{
for (x = x0; x <= x1; x++)
{
_XorPixel(pDevice, x, y0);
}
}
}
else
{
lcd_fill(x0,y0,x1,y1,LCD_COLORINDEX);
}
}
static void _DrawBitLine16BPP(GUI_DEVICE * pDevice, int x, int y, U16 const * p, int xsize) {
LCD_PIXELINDEX pixel;
lcd_set_cursor(x,y);
*(__IO uint16_t *)(UCGUI_LCD_CMD) = lcddev.wramcmd; /* 写入颜色值 */
for (;xsize > 0; xsize --, x++, p++)
{
pixel = *p;
*(__IO uint16_t *)(UCGUI_LCD_DATA) = pixel;
}
}
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