board: update ledc frequency

redchenjs · redchenjs · commit 5c3b4ea1a0b1 · 2020-03-12T04:32:21.000+08:00
diff --git a/main/src/board/st7735.c b/main/src/board/st7735.c
@@ -33,7 +33,7 @@ void st7735_init_board(void)
 
     ledc_timer_config_t ledc_timer = {
         .duty_resolution = LEDC_TIMER_8_BIT,
-        .freq_hz         = 20000,
+        .freq_hz         = 40000,
         .speed_mode      = LEDC_HIGH_SPEED_MODE,
         .timer_num       = LEDC_TIMER_0,
         .clk_cfg         = LEDC_AUTO_CLK,
diff --git a/main/src/board/st7789.c b/main/src/board/st7789.c
@@ -33,7 +33,7 @@ void st7789_init_board(void)
 
     ledc_timer_config_t ledc_timer = {
         .duty_resolution = LEDC_TIMER_8_BIT,
-        .freq_hz         = 20000,
+        .freq_hz         = 40000,
         .speed_mode      = LEDC_HIGH_SPEED_MODE,
         .timer_num       = LEDC_TIMER_0,
         .clk_cfg         = LEDC_AUTO_CLK,
