C47D
commented
4 years ago Hi,
Could you upload some code to replicate it? Are you using master?
Regards Carlos
Closed eddeyonline closed 4 years ago
C47D
commented
4 years ago Hi,
Could you upload some code to replicate it? Are you using master?
Regards Carlos
eddeyonline
commented
4 years ago /* LVGL Example project
// Change whether AP or STA mode with define at line 55, note flicker in AP mode // Fill in SSID and password for STA mode at lines 85-86
/ Littlevgl specific /
/*****
// Detect the use of a shared SPI Bus and verify the user specified the same SPI bus for both touch and tft
// FreeRTOS event group to signal when we are connected static EventGroupHandle_t s_wifi_event_group; /* The event group allows multiple bits for each event, but we only care about two events:
static const char *TAG = "wifi AP mode";
static const char *TAG = "wifi STA mode";
static int s_retry_num = 0;
/**
/ Example function that configure two spi devices (tft and touch controllers) into the same spi bus / static void configure_shared_spi_bus(void);
static void btn_event_cb(lv_obj_t * btn, lv_event_t event);
/**
static lv_obj_t * cont;
/**
/**
static void event_handler(void arg, esp_event_base_t event_base, int32_t event_id, void event_data) { if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) { esp_wifi_connect(); } else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) { if (s_retry_num < EXAMPLE_ESP_MAXIMUM_RETRY) { esp_wifi_connect(); s_retry_num++; ESP_LOGI(TAG, "retry to connect to the AP"); } else { xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT); } ESP_LOGI(TAG,"connect to the AP fail"); } else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) { ip_event_got_ip_t event = (ip_event_got_ip_t) event_data; ESP_LOGI(TAG, "got ip:%s", ip4addr_ntoa(&event->ip_info.ip)); s_retry_num = 0; xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT); } if (event_id == WIFI_EVENT_AP_STACONNECTED) { wifi_event_ap_staconnected_t event = (wifi_event_ap_staconnected_t) event_data; ESP_LOGI(TAG, "station "MACSTR" join, AID=%d", MAC2STR(event->mac), event->aid); } else if (event_id == WIFI_EVENT_AP_STADISCONNECTED) { wifi_event_ap_stadisconnected_t event = (wifi_event_ap_stadisconnected_t) event_data; ESP_LOGI(TAG, "station "MACSTR" leave, AID=%d", MAC2STR(event->mac), event->aid); } } void wifi_init_sta() { s_wifi_event_group = xEventGroupCreate();
tcpip_adapter_init();
ESP_ERROR_CHECK(esp_event_loop_create_default());
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL));wifi_config_t ap_wifi_config = {
.ap = {
.ssid = EXAMPLE_ESP_WIFI_SSID,
.ssid_len = strlen(EXAMPLE_ESP_WIFI_SSID),
.password = EXAMPLE_ESP_WIFI_PASS,
.max_connection = EXAMPLE_MAX_STA_CONN,
.authmode = WIFI_AUTH_WPA_WPA2_PSK
},
};
if (strlen(EXAMPLE_ESP_WIFI_PASS) == 0) {
ap_wifi_config.ap.authmode = WIFI_AUTH_OPEN;
}
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_AP) );
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_AP, &ap_wifi_config) );wifi_config_t sta_wifi_config = {
.sta = {
.ssid = SSID,
.password = PASS
},
};
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &sta_wifi_config) );ESP_ERROR_CHECK(esp_wifi_start() );ESP_LOGI(TAG, "Soft AP initialised. SSID:%s password:%s",
EXAMPLE_ESP_WIFI_SSID, EXAMPLE_ESP_WIFI_PASS);/* Waiting until either the connection is established (WIFI_CONNECTED_BIT) or connection failed for the maximum
* number of re-tries (WIFI_FAIL_BIT). The bits are set by event_handler() (see above) */
EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
pdFALSE,
pdFALSE,
portMAX_DELAY);
/* xEventGroupWaitBits() returns the bits before the call returned, hence we can test which event actually
* happened. */
if (bits & WIFI_CONNECTED_BIT) {
ESP_LOGI(TAG, "connected to ap SSID:%s password:%s",
SSID, PASS);
} else if (bits & WIFI_FAIL_BIT) {
ESP_LOGI(TAG, "Failed to connect to SSID:%s, password:%s",
SSID, PASS);
} else {
ESP_LOGE(TAG, "UNEXPECTED EVENT");
}
vEventGroupDelete(s_wifi_event_group);ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler));
ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler)); }
void lv_tutorial_objects(void) {
/********************
* CREATE A SCREEN
*******************/
/* Create a new screen and load it
* Screen can be created from any type object type
* Now a Page is used which is an objects with scrollable content*/
static lv_style_t style;
lv_style_copy(&style, &lv_style_plain);
style.body.main_color = LV_COLOR_BLUE;
style.body.grad_color = LV_COLOR_BLUE;
style.text.color = LV_COLOR_WHITE;
lv_obj_t * scr = lv_page_create(NULL, NULL);
lv_page_set_style(scr, LV_PAGE_STYLE_BG, &style);
lv_page_set_style(scr, LV_PAGE_STYLE_SCRL, &style);
lv_page_set_sb_mode(scr, LV_SB_MODE_OFF);
lv_disp_load_scr(scr);
/****************
* ADD A TITLE
****************/
lv_obj_t * label = lv_label_create(scr, NULL); /*First parameters (scr) is the parent*/
lv_label_set_text(label, "Test for flickering"); /*Set the text*/
lv_obj_set_x(label, 30); /*Set the x coordinate*/
/****************
* ADD A STATUS FIELD
****************/
cont = lv_cont_create(lv_scr_act(), NULL); //Global static definition so accessible in CB
lv_obj_set_auto_realign(cont, true); /*Auto realign when the size changes*/
lv_obj_align_origo(cont, NULL, LV_ALIGN_CENTER, 0, 0); /*This parametrs will be sued when realigned*/
lv_cont_set_fit(cont, LV_FIT_TIGHT);
lv_cont_set_layout(cont, LV_LAYOUT_COL_M);
label = lv_label_create(cont, NULL);
#if MODE_AP_STA == 0
lv_label_set_text(label, "AP MODE");
#else
lv_label_set_text(label, "STA MODE");
#endif
/***********************
* CREATE TWO BUTTONS
***********************/
/*Create a button*/
lv_obj_t * btn1 = lv_btn_create(lv_disp_get_scr_act(NULL), NULL); /*Create a button on the currently loaded screen*/
lv_obj_set_event_cb(btn1, btn_event_cb); /*Set function to be called when the button is released*/
lv_obj_align(btn1, scr, LV_ALIGN_IN_BOTTOM_LEFT, 0, 0); /*Align below the label*/
/*Create a label on the button (the 'label' variable can be reused)*/
label = lv_label_create(btn1, NULL);
lv_label_set_text(label, "<--");
/*Copy the previous button*/
lv_obj_t * btn2 = lv_btn_create(scr, btn1); /*Second parameter is an object to copy*/
lv_obj_align(btn2, scr, LV_ALIGN_IN_BOTTOM_RIGHT, 0, 0); /*Align next to the prev. button.*/
/*Create a label on the button*/
label = lv_label_create(btn2, NULL);
lv_label_set_text(label, "-->");}
void app_main() { //Initialize NVS const static char* TAG = "app_main"; esp_err_t ret = nvs_flash_init(); if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) { ESP_ERROR_CHECK(nvs_flash_erase()); ret = nvs_flash_init(); } ESP_ERROR_CHECK(ret);
ESP_LOGI(TAG, "ESP_WIFI_MODE_STA");
wifi_init_sta();lv_init();
/ Interface and driver initialization /
/ Configure one SPI bus for the two devices / configure_shared_spi_bus();
/ Configure the drivers / disp_driver_init(false);
touch_driver_init(false);
/ Otherwise configure the SPI bus and devices separately inside the drivers/ disp_driver_init(true);
touch_driver_init(true);
static lv_color_t buf1[DISP_BUF_SIZE]; static lv_color_t buf2[DISP_BUF_SIZE]; static lv_disp_buf_t disp_buf; lv_disp_buf_init(&disp_buf, buf1, buf2, DISP_BUF_SIZE);
lv_disp_drv_t disp_drv; lv_disp_drv_init(&disp_drv); disp_drv.flush_cb = disp_driver_flush; disp_drv.buffer = &disp_buf; lv_disp_drv_register(&disp_drv);
lv_indev_drv_t indev_drv; lv_indev_drv_init(&indev_drv); indev_drv.read_cb = touch_driver_read; indev_drv.type = LV_INDEV_TYPE_POINTER; lv_indev_drv_register(&indev_drv);
esp_register_freertos_tick_hook(lv_tick_task);
lv_tutorial_objects();
while (1) { vTaskDelay(1); lv_task_handler(); }
}
static void IRAM_ATTR lv_tick_task(void) { lv_tick_inc(portTICK_RATE_MS); }
static void configure_shared_spi_bus(void) { / Shared SPI bus configuration / spi_bus_config_t buscfg = { .miso_io_num = TP_SPI_MISO, .mosi_io_num = DISP_SPI_MOSI, .sclk_io_num = DISP_SPI_CLK, .quadwp_io_num = -1, .quadhd_io_num = -1,
.max_transfer_sz = DISP_BUF_SIZE * 2,.max_transfer_sz = DISP_BUF_SIZE * 2,.max_transfer_sz = DISP_BUF_SIZE * 3,.max_transfer_sz = DISP_BUF_SIZE * 2};
esp_err_t ret = spi_bus_initialize(TFT_SPI_HOST, &buscfg, 1); assert(ret == ESP_OK);
/ SPI Devices / disp_spi_add_device(TFT_SPI_HOST); tp_spi_add_device(TOUCH_SPI_HOST); }
eddeyonline
commented
4 years ago That didn't format too well! I'll just email you Carlos.
C47D
commented
4 years ago Could you create a repo with it?
eddeyonline
commented
4 years ago I've never done that before, but I'll give it a go!
On Mon, 6 Apr 2020, 02:06 Carlos Diaz, notifications@github.com wrote:
Could you create a repo with it?
— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/littlevgl/lv_port_esp32/issues/92#issuecomment-609440238, or unsubscribe https://github.com/notifications/unsubscribe-auth/AO2H6Z6HL7XOZVOLREW4U6DRLCUCFANCNFSM4L55C5LQ .
eddeyonline
commented
4 years ago C47D
commented
4 years ago Thanks for the repo @eddeyonline, I will take a look at it.
KammutierSpule
commented
4 years ago Is the flickering brightness change (a possible hardware power supply issue) or pixel filling flickering?
eddeyonline
commented
4 years ago I don't think it's a power issue as changing power supply doesn't make a difference and it doesn't flicker when under load in STA mode. I've just switched from using VSPI to HSPI to see if that made a difference but the issue is the same. I've tried videoing the display in the two different modes to demonstrate the issue, but the flickering isn't apparent on the video. Is anyone else noting this issue at all?
stale[bot]
commented
4 years ago This issue or pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
I've noticed a consistent issue with the display flickering when the ESP32 is in AP or APSTA mode. I'm using a 240x320 2.4" TFT LCD from AliExpress with ILI9341 display driver and XPT2046 touch driver. The display works perfectly when wifi is not enabled or when the ESP32 is connected in STA mode. As soon as it is in AP or APSTA mode, without changing any other factors or connecting to the AP, the display has a constant flicker (maybe 20-30Hz just by looking at it). Any ideas on how to resolve this issue? Thanks!