Implementation Method: In this example, the LVGL image refresh completion is notified within the DMA transfer completion interrupt service function. Using a blocking notification mechanism would prevent leveraging the double buffering mechanism to enhance the refresh speed. ...
DMA controller Fully-connected AHB crossbar Interpolator and integer divider peripherals On-chip programmable LDO to generate core voltage 2 on-chip PLLs to generate USB and core clocks 30 GPIO pins, 4 of which can be used as analog inputs (not all GPIO are brought out on this board) Peri...
DMA controller Fully-connected AHB crossbar Interpolator and integer divider peripherals On-chip programmable LDO to generate core voltage 2 on-chip PLLs to generate USB and core clocks 30 GPIO pins, 4 of which can be used as analog inputs Peripherals 2 UARTs 2 SPI controllers 2 I2C controlle...
Some of the DMA features are help with putting together the sync/blanking patterns on the fly, rather than having the patterns flat in memory With the second processor utterly unencumbered, you can render some pretty graphics to put on your DVI display. There is even enough RAM for a QVGA ...
DMA with a parallel interface (8 and 16-bit) is only supported with the RP2040. The updates for the ESP32 S2/C3/S3 means that the library requires the ESP32 Arduino board package 2.x.x or later. The screen controller, interface pins and library configuration settings must be defined ...
Write numbers: In the image buffer, use (Xstart Ystart) as the left vertex, and write a string of numbers, you can choose Ascii visual character library, font foreground color, or font background color. void Paint_DrawNum(UWORD Xpoint, UWORD Ypoint, double Nummber, sFONT* Font, UWORD...
image data will get over-written or destroyed while DMA is in progress 695 695 // If swapping colour bytesis defined andthe double buffer option is NOT used, then the bytes @@ -847,7 +847,7 @@ class TFT_eSPI : public Print { friendclass TFT_eSprite; // Sprite class has ac...