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by macksal
Mon Apr 24, 2023 2:32 am
Forum: Hardware
Topic: LCD_CAM + GDMA external RAM bottleneck (ESP32-S3)
Replies: 0
Views: 685

LCD_CAM + GDMA external RAM bottleneck (ESP32-S3)

Hi all, I am experiencing some issues with higher pixel clock rates (40MHz+) with the LCD_CAM module on ESP32-S3. I am using the GDMA controller to copy a frame of around 5M pixels from LCD_CAM into external PSRAM memory (octal SPI, 80MHz). Sometimes, a small number of pixels will sometimes be "miss...