From b6bdb0875d5b923ec39f3091dc845899b3f6ef72 Mon Sep 17 00:00:00 2001 From: Chen Jichang Date: Wed, 11 Feb 2026 12:09:13 +0800 Subject: [PATCH] fix(i80_lcd): fix dma stuck with high pclk --- components/esp_lcd/src/esp_lcd_panel_io_i80.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/components/esp_lcd/src/esp_lcd_panel_io_i80.c b/components/esp_lcd/src/esp_lcd_panel_io_i80.c index 27cca1cb0c..d71e1fdae5 100644 --- a/components/esp_lcd/src/esp_lcd_panel_io_i80.c +++ b/components/esp_lcd/src/esp_lcd_panel_io_i80.c @@ -619,9 +619,9 @@ static void lcd_start_transaction(esp_lcd_i80_bus_t *bus, lcd_i80_trans_descript if (trans_desc->data) { // some specific LCD commands can have no parameters gdma_start(bus->dma_chan, (intptr_t)(bus->dma_nodes)); - // delay 1us is sufficient for DMA to pass data to LCD FIFO + // delay 4us is sufficient for DMA to pass data to LCD FIFO // in fact, this is only needed when LCD pixel clock is set too high - esp_rom_delay_us(1); + esp_rom_delay_us(4); } lcd_ll_start(bus->hal.dev); }