atanisoft / esp_lcd_touch_xpt2046 Goto Github PK

Hello @atanisoft and thank you for sharing your library.

Could you provide some working example that makes use of the LVGL framework with ESP-ISD v5.x.x?
It would be greatly appreciated.

Thanks!

Hi,
I'm using your component in a ESP32-2432S028 board. I'm running spi_lcd_touch example with ESP-IDF v5.0-rc1. I had to edit some lines at ESP_LCD_TOUCH_IO_SPI_XPT2046_CONFIG struct, but the touch component works fine! Thank you!

However, display buttons and touch coords do not match and I wonder what would be the best way to convert them applying some offsets. By now, I implemented data_convert function from esp_lcd_touch_stmpe610 component and looks good. But, would you do this conversion at app level? Maybe by implementing a process_coordinates callback function from esp_lcd_touch_config_t struct?

Thanks!

https://github.com/atanisoft/esp_lcd_touch_xpt2046/blob/ede6c4f05f96991e48990c7da426eef7c995001b/esp_lcd_touch_xpt2046.c#L76C68-L76C68

`

if (config->int_gpio_num != GPIO_NUM_NC)
{
    ESP_GOTO_ON_FALSE(GPIO_IS_VALID_GPIO(config->int_gpio_num),
           ESP_ERR_INVALID_ARG, err, TAG, "Invalid GPIO Interrupt Pin");

`
This should be int_gpio_num instead of rst_gpio_num, or?

I try to use Touch with ILI9488 3,5" 480x320 V1.0 XPT2046
But i don't get any error or Data.

I had it working 2021 with an older version of driver.
https://github.com/lvgl/lvgl_esp32_drivers

I have disconnected the SDO from the touch, according too lvgl/lvgl_esp32_drivers#91
But even with that no data from the touch.

Do you have any idea what can be wrong? Its the same touch code that i use with an ili9341 where the xtp2046 is working with lvgl.

I use the esp error check function and so on but nothing, not even an error.

I call from the lvgl timer handler loop
ESP_ERROR_CHECK(esp_lcd_touch_read_data(tp));

but

void touch_driver_read(lv_indev_drv_t *drv, lv_indev_data_t *data)
{
    ESP_LOGI(TAG, "Read Touch Data");
    uint16_t x[1];
    uint16_t y[1];
    uint16_t strength[1];
    uint8_t count = 0;

    // Update touch point data.
    ESP_ERROR_CHECK(esp_lcd_touch_read_data(tp));

    data->state = LV_INDEV_STATE_REL;

    if (esp_lcd_touch_get_coordinates(tp, x, y, strength, &count, 1))
    {
        ESP_LOGI(TAG, "Touch Data %hu, %hu, %hu", *x, *y, *strength);
        data->point.x = x[0];
        data->point.y = y[0];
        data->state = LV_INDEV_STATE_PR;
    }

    data->continue_reading = false;
}

seems never get called.