我现在将littlevgl移植到nano板子上
Linux上运行ts_calibrate正常
Linux运行ts_test也正常
1608.891816: 529 287 255
1608.931818: 505 266 255
1608.971854: 474 243 255
1609.011849: 448 220 255
1609.051823: 423 199 255
1609.091839: 395 176 255
1609.131810: 358 158 255
1609.171840: 358 144 255
1609.211843: 343 132 255
1609.251849: 329 120 255
1609.291859: 326 116 255
1609.331852: 305 102 255
1609.371806: 290 88 255
1609.411850: 288 81 255 点击屏幕后,上面的数据至少都在800*480之间
之后运行littlevgl的demo程序,发现demo自动运行(就是3个tab循环播放那种),点击屏幕没有任何效果,我在littlevgl中的evdev.c打印了log,获得的点坐标非常不对
code如下:
bool evdev_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
{
struct input_event in;
while(read(evdev_fd, &in, sizeof(struct input_event)) > 0) {
printf("in.type = %d\n", in.type);
printf("in.code = %d\n", in.code);
if(in.type == EV_REL) {
if(in.code == REL_X)
#if EVDEV_SWAP_AXES
evdev_root_y += in.value;
#else
evdev_root_x += in.value;
#endif
else if(in.code == REL_Y)
#if EVDEV_SWAP_AXES
evdev_root_x += in.value;
#else
evdev_root_y += in.value;
#endif
} else if(in.type == EV_ABS) {
if(in.code == ABS_X)
#if EVDEV_SWAP_AXES
evdev_root_y = in.value;
#else
evdev_root_x = in.value;
#endif
else if(in.code == ABS_Y)
#if EVDEV_SWAP_AXES
evdev_root_x = in.value;
#else
evdev_root_y = in.value;
#endif
else if(in.code == ABS_MT_POSITION_X)
#if EVDEV_SWAP_AXES
evdev_root_y = in.value;
#else
evdev_root_x = in.value;
#endif
else if(in.code == ABS_MT_POSITION_Y)
#if EVDEV_SWAP_AXES
evdev_root_x = in.value;
#else
evdev_root_y = in.value;
#endif
} else if(in.type == EV_KEY) {
if(in.code == BTN_MOUSE || in.code == BTN_TOUCH) {
if(in.value == 0)
evdev_button = LV_INDEV_STATE_REL;
else if(in.value == 1)
evdev_button = LV_INDEV_STATE_PR;
} else if(drv->type == LV_INDEV_TYPE_KEYPAD) {
data->state = (in.value) ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL;
switch(in.code) {
case KEY_BACKSPACE:
data->key = LV_KEY_BACKSPACE;
break;
case KEY_ENTER:
data->key = LV_KEY_ENTER;
break;
case KEY_UP:
data->key = LV_KEY_UP;
break;
case KEY_LEFT:
data->key = LV_KEY_PREV;
break;
case KEY_RIGHT:
data->key = LV_KEY_NEXT;
break;
case KEY_DOWN:
data->key = LV_KEY_DOWN;
break;
default:
data->key = 0;
break;
}
evdev_key_val = data->key;
evdev_button = data->state;
return false;
}
}
}
if(drv->type == LV_INDEV_TYPE_KEYPAD) {
/* No data retrieved */
data->key = evdev_key_val;
data->state = evdev_button;
return false;
}
if(drv->type != LV_INDEV_TYPE_POINTER)
return false;
/*Store the collected data*/
#if EVDEV_SCALE
data->point.x = map(evdev_root_x, 0, EVDEV_SCALE_HOR_RES, 0, lv_disp_get_hor_res(drv->disp));
data->point.y = map(evdev_root_y, 0, EVDEV_SCALE_VER_RES, 0, lv_disp_get_ver_res(drv->disp));
#else
#if EVDEV_CALIBRATE
data->point.x = map(evdev_root_x, EVDEV_HOR_MIN, EVDEV_HOR_MAX, 0, lv_disp_get_hor_res(drv->disp));
data->point.y = map(evdev_root_y, EVDEV_VER_MIN, EVDEV_VER_MAX, 0, lv_disp_get_ver_res(drv->disp));
#else
data->point.x = evdev_root_x;
data->point.y = evdev_root_y;
#endif
#endif
data->state = evdev_button;
printf("before data->point.x = %d\n", data->point.x);
printf("before data->point.y = %d\n", data->point.y);
if(data->point.x < 0)
data->point.x = 0;
if(data->point.y < 0)
data->point.y = 0;
if(data->point.x >= lv_disp_get_hor_res(drv->disp))
data->point.x = lv_disp_get_hor_res(drv->disp) - 1;
if(data->point.y >= lv_disp_get_ver_res(drv->disp))
data->point.y = lv_disp_get_ver_res(drv->disp) - 1;
printf("after data->point.x = %d\n", data->point.x);
printf("after data->point.y = %d\n", data->point.y);
return false;
}log如下
before data->point.x = 3921
before data->point.y = 3773
after data->point.x = 799
after data->point.y = 479
before data->point.x = 3921
before data->point.y = 3773
after data->point.x = 799
after data->point.y = 479
before data->point.x = 3921
before data->point.y = 3773
after data->point.x = 799
after data->point.y = 479 从(read(evdev_fd, &in, sizeof(struct input_event))获得的点基本都是3000多以上的,之后由于都超过800*480了,在下边的代码中都处理为799*499了
if(data->point.x < 0)
data->point.x = 0;
if(data->point.y < 0)
data->point.y = 0;
if(data->point.x >= lv_disp_get_hor_res(drv->disp))
data->point.x = lv_disp_get_hor_res(drv->disp) - 1;
if(data->point.y >= lv_disp_get_ver_res(drv->disp))
data->point.y = lv_disp_get_ver_res(drv->disp) - 1;lv_drv_conf.h如下
#ifndef USE_EVDEV
# define USE_EVDEV 1
#endif
#if USE_EVDEV
# define EVDEV_NAME "/dev/input/event1" /*You can use the "evtest" Linux tool to get the list of devices and test them*/main.c如下
lv_indev_drv_t indev_drv;
lv_indev_drv_init(&indev_drv); /*Basic initialization*/
evdev_init();
indev_drv.type = LV_INDEV_TYPE_POINTER; /*See below.*/
indev_drv.read_cb = evdev_read; /*See below.*/
lv_indev_drv_register(&indev_drv); /*Register the driver in LittlevGL*/我现在搞不清我哪里配置错了,请帮忙看看?
另外运行官方的littlevgl的demo后,3个tab是循环播放吗?我感觉这个现象也怪怪的,我在pc_imulator上也运行过,他那个就没循环播放
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before data->point.x = 3921
before data->point.y = 3773
这种一看就是 ADC 值,
要获取 LCD X/Y 要通过 tslib
tslib 有做滤波、去抖、校准等功能了。
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你的意思是要将tslib整合至littlevgl中吗?就像 https://whycan.cn/t_2303.html 说的, 下午我试试看看
before data->point.x = 3921
before data->point.y = 3773这种一看就是 ADC 值,
要获取 LCD X/Y 要通过 tslib
tslib 有做滤波、去抖、校准等功能了。
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点进去看了下，是我发的帖子。。。
你的意思是要将tslib整合至littlevgl中吗?就像 https://whycan.cn/t_2303.html 说的, 下午我试试看看
firstman 说：before data->point.x = 3921
before data->point.y = 3773这种一看就是 ADC 值,
要获取 LCD X/Y 要通过 tslib
tslib 有做滤波、去抖、校准等功能了。
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可以了,感谢二位!
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是啊,谢谢!!!
点进去看了下，是我发的帖子。。。
shiqx429 说：你的意思是要将tslib整合至littlevgl中吗?就像 https://whycan.cn/t_2303.html 说的, 下午我试试看看
firstman 说：before data->point.x = 3921
before data->point.y = 3773这种一看就是 ADC 值,
要获取 LCD X/Y 要通过 tslib
tslib 有做滤波、去抖、校准等功能了。
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Can you share your pin out. I'm newbie to Lichee Pi Nano.
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