Search found 5 matches

by fdrvlx
Tue Mar 22, 2022 7:07 am
Forum: Hardware
Topic: ESP32-S3 RGB LCD maximum throughput
Replies: 34
Views: 40018

Re: ESP32-S3 RGB LCD maximum throughput

There's no problem with the LCD display. And the PSRAM is actually working at almost 80 MB/s. In fact, yesterday I was able to drive the display with a pixel clock of 40 MHz (almost 80 MB/s) by displaying a static image e not using the PSRAM for doing anything else in the application code. This mean...
by fdrvlx
Mon Mar 21, 2022 8:55 am
Forum: Hardware
Topic: ESP32-S3 RGB LCD maximum throughput
Replies: 34
Views: 40018

Re: ESP32-S3 RGB LCD maximum throughput

Thank you, I've just tried the new driver. The only difference I see is that the image doesn't keep shifting anymore, but instead it hase some "glitches". This is because the new driver forces the display to start drawing every time from the correct start position, but then again it cannot keep up w...
by fdrvlx
Mon Mar 21, 2022 7:05 am
Forum: Hardware
Topic: ESP32-S3 RGB LCD maximum throughput
Replies: 34
Views: 40018

Re: ESP32-S3 RGB LCD maximum throughput

Sure, i selected octal mode, 80 Mhz in menuconfig.
by fdrvlx
Fri Mar 18, 2022 2:49 pm
Forum: Hardware
Topic: ESP32-S3 RGB LCD maximum throughput
Replies: 34
Views: 40018

ESP32-S3 RGB LCD maximum throughput

Hi, I'm currently developing a custom board with an ESP32-S3-WROOM-1-N8R8 driving a 800x480 5" LCD display with a 16 bit RGB interface. The problem is, the display works correctly only with a pixel clock up to ~14 Mhz. Increasing the speed leads to visualization problems (the image on the screen shi...