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TFT_MISO in User_Setup.h : Update detail information about DMA using SPI display. #3550

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TFT_MISO in User_Setup.h : Update detail information about DMA using SPI display. #3550

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1 change: 1 addition & 0 deletions User_Setup.h
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,7 @@

// Some displays support SPI reads via the MISO pin, other displays have a single
// bi-directional SDA pin and the library will try to read this via the MOSI line.
// DMA with SPI requires MISO pin defined or allocate it to be the same as the TFT_CS line and it will work. (https://github.com/Bodmer/TFT_eSPI/discussions/2233#discussioncomment-4870457)
// To use the SDA line for reading data from the TFT uncomment the following line:

// #define TFT_SDA_READ // This option is for ESP32 ONLY, tested with ST7789 and GC9A01 display only
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