espressif/esp-idf
1
0
Fork 1
mirror of https://github.com/espressif/esp-idf.git synced 2026-05-05 12:25:03 +02:00
Code Issues Packages Projects Releases Wiki Activity

rgb_lcd: support restart dma transmission manually

Browse Source 
When doing Flash operations (e.g. OTA), LCD's DMA bandwidth will be not
sufficient, causing the desync between the LCD controller and DMA.

Added a restart function to help the user to make them sync again.
This commit is contained in:
morris
2022-09-22 17:52:52 +08:00
parent 052dc64616
commit 05092e2f82
5 changed files with 92 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/esp_lcd/test_apps/rgb_lcd/main/test_rgb_panel.c
+25
View File
@@ -214,6 +214,31 @@ TEST_CASE("lcd_rgb_panel_update_pclk", "[lcd]")
free(img);
}
TEST_CASE("lcd_rgb_panel_restart", "[lcd]")
{
uint8_t *img = malloc(TEST_IMG_SIZE);
TEST_ASSERT_NOT_NULL(img);
printf("initialize RGB panel with stream mode\r\n");
esp_lcd_panel_handle_t panel_handle = test_rgb_panel_initialization(16, 16, 0, false, NULL, NULL);
printf("flush one clock block to the LCD\r\n");
uint8_t color_byte = esp_random() & 0xFF;
int x_start = esp_random() % (TEST_LCD_H_RES - 100);
int y_start = esp_random() % (TEST_LCD_V_RES - 100);
memset(img, color_byte, TEST_IMG_SIZE);
esp_lcd_panel_draw_bitmap(panel_handle, x_start, y_start, x_start + 100, y_start + 100, img);
printf("The LCD driver should keep flushing the color block in the background (as it's in stream mode)\r\n");
vTaskDelay(pdMS_TO_TICKS(1000));
printf("Restart the DMA transmission in the background\r\n");
TEST_ESP_OK(esp_lcd_rgb_panel_restart(panel_handle));
vTaskDelay(pdMS_TO_TICKS(1000));
printf("delete RGB panel\r\n");
TEST_ESP_OK(esp_lcd_panel_del(panel_handle));
free(img);
}
TEST_CASE("lcd_rgb_panel_rotate", "[lcd]")
{
const int w = 200;
components/esp_lcd/test_apps/rgb_lcd/sdkconfig.ci.iram_safe
+1
View File
@@ -1,5 +1,6 @@
CONFIG_COMPILER_DUMP_RTL_FILES=y
CONFIG_LCD_RGB_ISR_IRAM_SAFE=y
CONFIG_GDMA_CTRL_FUNC_IN_IRAM=y
CONFIG_COMPILER_OPTIMIZATION_NONE=y
# silent the error check, as the error string are stored in rodata, causing RTL check failure
CONFIG_COMPILER_OPTIMIZATION_CHECKS_SILENT=y