Lesson 06: Screens flicker when transitioning from one to another
Hi. I'm using the v.3 of CrowPanel 7" HMI display. Working through the youtube video tutorials, I'm currently looking at 'Design UI with Squareline Studio' (Lesson 06). With this example compiled and uploaded, I'm experiencing a lot of screen 'noise' when switching between screens. I had a similar issue with Lesson 03: Display images from SD card: the screens do not transition without flicker or noise.
my gfx_init config file is already set as such:
cfg.pin_henable = GPIO_NUM_41;
cfg.pin_vsync = GPIO_NUM_40;
cfg.pin_hsync = GPIO_NUM_39;
cfg.pin_pclk = GPIO_NUM_0;
cfg.freq_write = 14000000;
How can I resolve this issue? Is it wise to set cfg.freq_write any lower? I have attached an image which captures the problem I am experiencing.
Thanks
Comments
Please try to lower the frequency of 7-inch a little bit in gfx_conf.h to 10000000:
cfg.pin_henable = GPIO_NUM_41;
cfg.pin_vsync = GPIO_NUM_40;
cfg.pin_hsync = GPIO_NUM_39;
cfg.pin_pclk = GPIO_NUM_0;
cfg.freq_write = 10000000;
that worked!!
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