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50金钱
本帖最后由 592924270 于 2024-8-30 11:07 编辑
难道是真的就只能跑这么点吗,还是有什么其他配置错误的地方,了解的朋友指点下
设备配置&ecspi1{
fsl,spi-num-chipselects = <2>;
cs-gpios = <&gpio4 26 0
&gpio4 23 0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi1>;
status = "okay";
ili9341@0{
compatible = "ilitek,ili9341";
reg = <0>;
dc-gpios = <&gpio4 22 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio4 21 GPIO_ACTIVE_HIGH>;
spi-max-frequency = <50000000>;
rotation = <270>;
bgr;
fps = <100>;
buswidth= <8>;
debug = <0>;
};
xpt2046@1{
compatible = "ti,tsc2046";
reg = <1>;
pinctrl-0 = <&pinctrl_tsc>;
interrupt-parent = <&gpio1>;
interrupts = <9 0>;
interrupt-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
spi-max-frequency = <1000000>;
pendown-gpio = <&gpio1 9 0>;
vcc-supply = <®_can_3v3>;
ti,x-min = /bits/ 16 <0>;
ti,x-max = /bits/ 16 <320>;
ti,y-min = /bits/ 16 <0>;
ti,y-max = /bits/ 16 <240>;
//ti,x-plate-ohms = /bits/ 16 <0>;
//ti,pressure-max = /bits/ 16 <255>;
linux,wakeup;
};
};
lvgl 配置,屏蔽了触摸输入
#define DISP_BUF_SIZE (240 * 320)
int main(void)
{
/*LittlevGL init*/
lv_init();
/*Linux frame buffer device init*/
fbdev_init();
/*A small buffer for LittlevGL to draw the screen's content*/
static lv_color_t buf[DISP_BUF_SIZE];
/*Initialize a descriptor for the buffer*/
static lv_disp_draw_buf_t disp_buf;
lv_disp_draw_buf_init(&disp_buf, buf, NULL, DISP_BUF_SIZE);
/*Initialize and register a display driver*/
static lv_disp_drv_t disp_drv;
lv_disp_drv_init(&disp_drv);
disp_drv.draw_buf = &disp_buf;
disp_drv.flush_cb = fbdev_flush;
disp_drv.hor_res = 240;
disp_drv.ver_res = 320;
lv_disp_drv_register(&disp_drv);
/*evdev_init();
static lv_indev_drv_t indev_drv_1;
lv_indev_drv_init(&indev_drv_1); /*Basic initialization*/
//indev_drv_1.type = LV_INDEV_TYPE_POINTER;
/*This function will be called periodically (by the library) to get the mouse position and state*/
// indev_drv_1.read_cb = evdev_read;
//lv_indev_t *mouse_indev = lv_indev_drv_register(&indev_drv_1);
/*Set a cursor for the mouse*/
//LV_IMG_DECLARE(mouse_cursor_icon)
//lv_obj_t * cursor_obj = lv_img_create(lv_scr_act()); /*Create an image object for the cursor */
//lv_img_set_src(cursor_obj, &mouse_cursor_icon); /*Set the image source*/
//lv_indev_set_cursor(mouse_indev, cursor_obj); /*Connect the image object to the driver*/
/*Create a Demo*/
lv_demo_benchmark();
/*Handle LitlevGL tasks (tickless mode)*/
while(1) {
lv_timer_handler();
usleep(2000);
}
return 0;
}
显示刷新配置
/*Default display refresh period. LVG will redraw changed areas with this period time*/
#define LV_DISP_DEF_REFR_PERIOD 10 /*[ms]*/
/*Input device read period in milliseconds*/
#define LV_INDEV_DEF_READ_PERIOD 1000 /*[ms]*/
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最佳答案
查看完整内容[请看2#楼]
50M频率/(X方向分辨率320*Y轴方向分辨率240*色彩位数24)=27FPS,SPI通信还会存在命令发送的一些数据,实际更低。所以17也差不多
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