Update LittleFS_PNG_DMA.ino

add a little description for 'DMA'  (Direct Memory Access)
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sonictl 2022-05-17 22:08:54 +08:00 committed by GitHub
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@ -3,7 +3,7 @@
// ESP32, ESP8266). It renders a png file that is stored in LittleFS
// using the PNGdec library (available via library manager).
// It uses DMA to send image data to the TFT while the decoding takes
// It uses DMA (Direct Memory Access) to send image data to the TFT while the decoding takes
// place. The processor and display combination must support DMA to
// run this sketch! The decode time dominates so DMA is mainly an advantage
// for slow display interface speeds.